Accessible for people in wheelchair

Exhibit-Links
11374 Haupt

"Delta Phi"

by Joachim Sauter The chrome-plated surface of the exhibit resembles a strongly moving water surface. Illuminated from above with a torch, the incoming light…

10601 1

2x2 Puzzle

Four cubes fit together in the box. Each cube has 4 quarter-pictures, one on each of 4 faces. The other two faces are transparent, BUT they look onto the…

11798 Detail II

3D-Shadows

A tetrahedron on the ceiling or visitors on a floor panel are illuminated by a red and green lamp and thus cast a red and green shadow on the screen behind…

11976 Phänomen

847 Compass needles

There are 847 compass needles attached to a disc. Because they are so close together, they influence each other. With a magnet, the compass needles can be made…

10228 Haupt

A riddle for intelligent and patient people

Puzzles for the astute and the patient. Of the eleven puzzles with strings, boards and rings, however, one cannot be solved. But which one?

10104 Detail

A Slice of Turbulence

by Ned Kahn If the crest of the wave collapsed over the surfer off Hawaii and he could bring home a slice of salami from it, he would have the original to the…

10006 Detail

Additive Color Mixing

Light colours are mixed quite differently from paint colours. We have known since childhood that many colours mixed together in a pot of paint produce a dark…

10515 Haupt

Aeolian Landscape

by Ned Kahn Alongside water and ice, wind is the shaping element of the natural landscape. This exhibit allows for the pleasurable "terraforming" of gently…

10262 Haupt

Air Bubbles

A pump can be used to force air into a water-filled glass tube. However, not all air bubbles rise vertically. Some do, others choose more of a zigzag or spiral…

10581 Illustration alt

Air Mirror

Sit comfortably and check the stripy view at the end of the road. Now heat up the road. (A solid steel plate rapidly heats to 100°, warming the dark sand of…

11747 Detail

Alike and unalike

Two identical sheets of wood are placed next to each other and compared. Since the perceptual system in the brain cannot perceive things in isolation, you see…

10012 Haupt

All Triangels are the same

Using different triangular shapes, congruent shadows are to be cast on a pattern wall with equilateral triangles.

10570 Illustration alt

Anamorphic Images: Cone

On a flat surface the images are distorted beyond recognition – a peculiar visual code requiring a special key. Slip the square sheets over the reflective…

10569 Illustration alt

Anamorphic Images: Cylinder

On a flat surface, the images are distorted beyond recognition - a special visual code needs a special key. Put the square panels over the reflective cylinder:…

10398 Detail

Angled Mirrors

With two mirrors that can be brought to different angles to each other around an axis, polygons (so-called polygons) can be made in a simple way. At very…

11940 Haupt

Ants

Observe the bustling activity of ants as they move through a large enclosure performing various tasks. This is made of transparent material so that visitors…

10030 Haupt

Aurora

A strange "mirror" distorts points of light into long, luminous bands, comparable to the interplay of water and light when the sun rises. Why don't you just…

10598 1

Back View

Step forward to check how neat (or not….) your bum really looks in those cool new jeans: every clothes’ store should have this back-view booth!

10239 1

Ball in a Bowl

Anyone who has ever swung a hula hoop around their waist or a daler in a bowl knows what this is all about. Inside a large Plexiglas ball, two balls can be…

10240 Haupt

Ball in a Bowl

Which of the two balls reaches its destination faster? Of course, the one that runs the shortest distance between the start and the finish - or so you…

10035 Detail

Ball on water-beam

What makes table tennis balls stick to the water fountain? Obviously, the ball does not ride in the middle of the jet and rotates so that it comes towards the…

11364 1

Ball sorting machine

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

11946 Detail

Barium

Here you can see a piece of barium that weighs approx. 1 gram and consists of about 4.4 trilliards atoms. How heavy, do you think, 10 barium atoms are?

10572 Illustration alt

Bathroom Mirror

Sit quietly in front of the mirror and look closely at your face: sketch the outline, mouth, nose and eyes as you see them in the mirror. Now look at your…

10034 Haupt

Beam Bridge

This bridge illustrates the forces acting on a straight beam under load when it is only supported at the two opposite ends. As this beam consists of many small…

11395 Detail

Bell in a Vacuum

This is what astronauts hear on the moon. How do sound waves spread in airless, windless space? Not at all. When astronauts communicate with knocking…

10301 Haupt

Benham's Disc

A rotating disc with a black and white pattern printed on it creates the impression of colours, even though there are no colours! Our colour receptors, the…

10249 Phänomen

Bent Laser Light

The light that goes around corners! When light (in this case laser light) hits a thin structure such as a hair or a thin slit, it is deflected by it in…

10459 1

Bicycle Wheel Gyroscope

Why is it so difficult to keep your balance when you ride your bike very slowly, but no problem when you ride a little faster? The spin created by the fast…

11474 Illustration alt

Blind Juggler

The Blind Juggler can juggle up to four balls at the same time without any sensors.

10046 Detail

Blind Spot

If you stare with one eye at the apple on the tablet and slowly move it towards your face, at a certain distance the orange to the right of the apple seems to…

10049 Detail

Blood Vessels of the Eye

In front of (and not behind) the retina of our eye runs a network of blood vessels. We just don't see them because the brain blocks out these constant…

10226 Haupt

Break the code

An encrypted text appears on the monitor, which has to be deciphered with as few failed attempts as possible. More than 400 quadrillion possibilities seem to…

10032 Haupt

Bridge the Gap

Building bridges is not so easy - especially when you are not allowed to use nails, screws or glue! Here you only have nine identical wooden blocks at your…

11826 1

Captured Cloud

This exhibit is not accessible during the winter months. To get up close to clouds, you usually have to go high up in the mountains. You can easily step into…

Spiegelfenster Karussell phä

Carousel of Faces

As you carefully adjust the light level, the mirror becomes a window onto a well-known face. Balance illumination with reflection, and merge your face with a…

10525 Haupt

Chance Happenings

Here everything is left to chance: These cubes have on two sides a red circle the other four are white. For each roll of the remaining dice, those with the red…

10980 Haupt

Changeable Weather

How do you determine the average value of numerous individual measurements? Here, the average monthly rainfall can be determined experimentally.

11763 11813 Detail I

Changing Sides

A wire cube rotates in front of a mirror. If you squint one eye and fix a front corner of the wire cube, you see a certain direction of rotation. If you now…

10056 Haupt I

Chaotic fountain

by Bernard Gitton The 12 vessels on the fountain wheel are all the same size, have the same outflow and are filled again at the top with a steady inflow of…

10054 Haupt

Chaotic Pendulum

by Nicholas Rott Normal pendulums swing in a highly predictable and unspectacular manner like Swiss clockwork. Not so this pendulum! A longer light pendulum is…

10055 detail

Chaotic Pendulum II

by Ned Kahn Normal pendulums swing in a highly predictable and unspectacular manner like Swiss clockwork. Not so this pendulum! Three smaller pendulums are…

10102 Detail

Circling Wave Umbrella

by Ned Kahn A circular fabric hangs limply around the central axis of rotation. When set in rotation (remember, for example, women wearing skirts at folk…

11559 Haupt

Circular Deformations

It's amazing what movements we think we see in the shapes of rotating discs! Ovals wrap around standing circles, cones tumble around each other in a…

10231 Haupt

Circular Deformations

It's amazing what movements we think we see in the shapes of twisting discs! Ovals wrap around standing circles, cones tumble around each other in a…

11024 Haupt

Clear Light

by Cork Marcheschi A very ordinary fluorescent tube has remained without what makes it so: the coating with luminescent material. Thus, through the clear…

10433 Haupt

Cloud Chamber

Atomic (and sub-atomic) particles from space and from various radioactive processes on earth leave short-lasting “vapour trails” behind them in the cloud…

10521 Detail

Cloud Rings

by Ned Kahn Cloud maker of a special kind! If you press the lid of this huge basin filled with water mist, fog rises through the hole in the middle - up to 7…

11749 Detail II

Coarse or Fine

One hand strokes a coarse sandpaper, the other hand strokes a fine sandpaper, then both hands simultaneously stroke a sandpaper whose grain size lies between…

10587 Illustration alt

Cold and Warm Light Mirrors

Without protection, the lamp in a slide projector would melt the valuable slide. How can you protect the slides? This exhibit shows the effect of different…

11809 Detail

Cold Test

Two visitors each grasp two metal pipes with both hands. However, the metal pipes are extremely cold! Most people can only touch the pipe, which is about 4…

10125 Haupt

Color Contrast

Colour squares on different coloured backgrounds are to be compared and the subjective impression checked with a stencil. Observation: our brain cannot…

10591 1

Colour Corner

Set two mirrors at 62°, cap them with a third, and mount a lightbox at their apex. This kaleidoscopic art piece is another Caspar Schwabe creation: “2%…

10122 Haupt

Colour Removal

A prism splits the white light into its spectral colours. If a colour filter is held in the beam path, only certain spectral colours can pass through. A colour…

10128 Detail

Colour Reversal

A green tree against an orange background, a rotating disc with a recess, followed by a white surface - so what? If you let the disc rotate very quickly, so…

10124 Haupt

Coloured Shadows

Three lamps in the colours red, green and blue illuminate the white background, but there are six different coloured shadows: Miracles of colour addition. To…

10224 Detail

Conic Sections with Laser

A laser beam circling to the cone is caught on a screen; depending on the screen position, circles, ellipses, parabolas or hyperbolas are created.

10484 1

Convection cells

by Ned Kahn L'air ou le liquide chaud s'élève, mais à d'autres endroits, il est forcé de redescendre. Ces formations sont appelées cellules de convection,…

10059 Haupt

Conway Cube

Your spatial imagination is challenged here. A cube is to be put together from nine parts - there are three 1x1x1 cubes and six 2x2x1 cuboids.

10060 1

Coriolis Fountain

What happens to the water jet when you turn around your own axis while holding a garden hose in your hand? That's right, the water jet turns behind you. In…

10223 Detail

Corner Reflector

From whichever direction you direct a beam of light into the three mirrors mounted at right angles to each other, the reflected light emerges in exactly the…

10050 Detail

Corpuscles of the Eye

Looking at the pulse! If you look into a blue light source, you can see pulsating dots, even a whole network of pathways. These are the red blood cells in the…

10312 1

Counter-Balanced Pendulum

How would the same pendulum swing on the moon compared to the earth? We cannot change the Earth's gravity, but we can simulate a change in gravity by moving a…

11981 Detail

Coupled magnetic sculpture

Magnets are attached to the spokes of several wheels, which influence each other. If you turn one of the wheels, the movement is passed on to the other wheels…

10149 1

Coupled pendulums

Two identical pendulums are connected to each other via a spiral spring. If one of the pendulums is set in motion, the energy of the swinging pendulum is…

10148 1

Coupled Rotary Pendulums

Two horizontal rods with movable weights mounted on top of each other are connected by a steel band. If one rod is deflected, it begins to swing and gradually…

11078 Detail

Critical Angle

Light usually propagates in a straight line. But what happens when it hits a boundary surface? Depending on the angle of incidence, the light is deflected more…

11744 Phänomen I

Crooked Tiles

Black and white squares can be shifted to form stripes or a chequerboard pattern, and the joints can be lit with different brightnesses. The horizontal lines…

10229 1

Crushing Mill

Similar to a carousel, three brass wheels rotate in a circle on a spring-loaded base. The individual brass wheels represent independent spinning tops. Spinning…

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Cubes cubed

Pull on the cord to create a translucent cube. Keep on pulling to make it grow. Inside the kaleidoscope, it expands backwards as well as forwards so it grows…

10428 Phänomen

Dancing iron particles

by David Durlach 81 electromagnets are covered with fine iron dust. The electromagnets can be controlled either via a sensor surface or via prepared programmes…

11495 Haupt

David versus Goliath

Who is stronger? Push the plunger down. Which of you feels like Goliath and which feels like David? The air pressure is the same in both cylinders. Their…

11029 Haupt

Deep Walls

Shadows in motion - moving silhouettes. On a large projection surface, divided into 16 fields, shadow images move towards and away from each other. Each…

Verformbarer Spiegel phä

Deformable Mirror

Here is whole-body morphing at the touch of a switch in a mirror the size of a door. Curvature is controlled at 15 points, offering wild effects from ‘Diagonal…

11812 Haupt

Delayed Viewing

There are fish on a table that have to be caught with a magnet on a fishing line and brought into a matching hollow shape in the center of the table. The…

11765 Detail

Dialog in the Vase

Sculpture by Christoph Züng Here, two basic elements of perception vie for your attention. On the one hand, we prefer objects to their background (in this case…

10526 Detail

Diced Snake

At the beginning of the snake of about 60 dices the thrown amount of numbers are firstly being continued to be counted and then proceeded with the numbers…

11794 Unused

Different Discs

This exhibit is about the conflict between the visual situation and what I expect from it, how the weights feel, and the feeling when I actually lift the…

Digitale Sonnenuhr stand

Digital Sundial

This exhibit is not accessible during the winter months. A digital" sundial without electronics: It does not cast a shadow, but projects the time as luminous…

10100 Haupt

Disappearing Ghost

Dieses Puzzle besteht nur aus drei Teilen: Ein Grundelement und zwei Topelemente. Das Bild dieses einfachen Puzzles zeigt einige Geister; doch vertauschen Sie…

10158 Haupt

Disappearing Glass Rods

What "optical density" is all about is known to anyone whose drinking straw suddenly appeared bent in a glass. Water and air are apparently optically different…

11993 Detail

Distorting faces

by Niclas Roy A whole row of screens each shows the viewer's face. If you hold a magnet to the screen, the electrons in it are deflected, distorting the image.

10487 Haupt

Do they fit in the Box?

Either a cube, a tetrahedron, a double tetrahedron or a cuboctahedron are to be packed into a given glass cube.

10082 Haupt

Double Refraction in Calcite Crystals

If you look at the lettering through the calcite crystal, the lettering appears twofold. Since the strength of the refraction of the light depends on its…

10530 Haupt

Drawing on the Move

A ruler lies above a disc with variable rotation speed. When the pencil is held still on the ruler or moved back and forth along the ruler at a steady or…

11832 1

Droplet Fountain

This exhibit is not accessible during the winter months. A single drop falls and causes ripple patterns in the fountain. What happens to them at the edge of…

10579 Illustration alt

Dual Mirror I

by James Seawright This work consists of 110 mirror tiles arranged into two concave surfaces. The radii of the concavities are the same, but the mirrors are…

10046 Detail

Edges communicate Information

Two grey panels each show a small white cross and a white area to the right of it. In one case the area is sharply delineated from the grey background, in the…

10098 Haupt

Efron’s Dice

There are 4 dice with loaded numbers. If you let the first player choose a die, you can always choose one from the remaining three dice with which you…

11985 Haupt

Electromagnetic cannon

The electromagnetic cannon consists of a coil with an iron core that can be abruptly energised at the push of a button. If there is a metal ring on the iron…

11982 Detail

Electromagnetic Puppet Theatre

Three stations each contain four coils whose frequency and phase shift can be adjusted. Figures with magnetic legs can be placed on the stations. The current…

11973 Detail

Electromagnetic railway

A track with a magnetic toy train on it runs through a large coil. At the push of a button, current flows through the coil. This creates a magnetic field in…

11979 Detail

Electrostatic dance

A plastic plate is rubbed against a leather surface and thus electrostatically charged. The plastic plate is then placed on a copper plate, whereupon the…

10399 Haupt

Elliptical Mirror

Although élleipsis means "lack" in Greek, the ellipse is in no way lacking in interesting properties. It has two focal points, one with a rotating periscope…

11978 Hauot

Emotion detector

Here, the skin resistance of a person is measured while being interviewed by another person at the same time. The skin resistance is influenced by the…

10440 Haupt

Encoding Text - Caesar’s disc

Texts can be encoded and decoded by means of two letter discs that can be moved in relation to each other. Such methods were already used to protect…

10160 Haupt

Equal Times

Normally, the time it takes a ball to roll down a plane depends on its position on the plane. But not so here: if you let go of the two balls in the track at…

Experimentierecke

Experimental Stations 1 to 6

On a hexagonal table is a circus of hands-on activities, all to do with reflections in every-day life: What’s in a surface? Reflections off curved…

10863 Detail

Experiments with polarized Light

Light is a wave - and waves can oscillate in different directions. This can be studied and observed very impressively with the help of pool filters and some…

10033 Detail

Eye Viewer

Our eye and a photo camera have many things in common. For example, our retina can adapt to changes in brightness to a certain extent (in the case of a camera,…

11741 Detail

Face Wipe

This is a conflict that arises when different information reaches the brain from the right or left eye. In this exhibit, a grinning cat is painted on one side…

11972 Haupt

Falling tiles

Various metal plates are dropped between two rows of magnets. The magnets generate eddy currents in the plates that slow them down.

11835 1

Falling Water

This exhibit is not accessible during the winter months. Every 20 minutes, 5 tonnes of water plunge from this cube into the depths. With the help of a…

10322 Haupt I

Fantascope

Two printed discs with beam-like slits make fantastic "films" run when set in counter-rotation and viewed through one of the discs. Thanks to the inertia of…

10253 Haupt

Favourite Uncle

by Austine Wood-Comarow A "polage" (from "polarisation" and "collage") is the favourite uncle depicting a scene from Greek mythology. The artwork consists of…

11745 Haupt

Feeling for Weight

This exhibit is about the conflict between the visual situation and what I expect from it, how the weights feel, and the feeling when I actually lift the…

11957 Detail

Field-Detector

Three detectors are available for guests to search for electromagnetic fields in the exhibition. The fields are made audible by loudspeakers on the detectors.…

10431 Detail

Floating Rings

Three rings seem to move like turned-on coins on the black column, so that it looks as if three individual, loose rings are floating in perfect balance. When…

10493 1

Floating Tap

This exhibit is not accessible during the winter months. If this tap were not in the Technorama Park, it would probably have come from the land of milk and…

11507 Detail

Fog wind tunnel

With this exhibit we want to make air currents visible. We put different objects into the air flow, which can also be varied in position. This makes the flow…

10490 1

Fountain of Instability

This exhibit is not accessible during the winter months. In the middle of the pond, water sprays out of an extremely flexible hose end. At low speed, the end…

11816 Unused

Fragrance Memory

In a number of identical looking smelling containers there are pairs of different scents, pleasant and unpleasant. The task is to find these pairs. In…

10582 Illustration alt

Fresnel Mirror

by Dave Barker A mirror that spreads out your face so that you can almost look into your ears! Stand on the red dot, look into the mirror exactly in the…

10115 Haupt

Frozen Hand

If a hand is moved quickly back and forth across a plate, it is always flashed at the same position by a stroboscopic flash. From the viewer's point of view,…

11974 Detail

Generator track

A track with a magnetic toy railway on it runs through a large coil. When the toy track is moved in the coil, a current is generated in the coil. The direction…

11748 Haupt

Gentle Hands

One hand strokes a coarse grid, the other hand strokes a fine grid, then both hands simultaneously stroke a grid whose mesh size lies between the other two.…

11012 Haupt

Ghost Images

by Bill Bell Under a steady gaze, a viewer will see only a slight flickering light in a dozen columns of tiny bright LED bulbs. However when the viewer tries…

10157 Phänomen

Glass Bead Rainbow

The smallest glass beads are illuminated with a torch - a rainbow becomes visible! The glass beads act like small prisms, they split the light into its…

11786 Detail II

Goal-oriented grass

Plants, such as grasses, have cells that perceive gravity. This enables them to recognize where above and below is, and they can grow vertically and stably. In…

10403 Haupt

Gothic Arch and Flying Buttress

This structure consists of a high pointed arch and the buttress with buttresses and arches. Find out what an important role the buttress has in the stability…

10166 1

Gravitational model or Energy Well

A steel ball can be sent on an orbit in this huge, funnel-shaped vessel via an inclination-adjustable inlet lever. The ball does not just plop straight into…

10132 Detail

Grease Spot Photometer

What's that grease spot on the paper between the two lamps? This is an ingenious trick to compare the brightness of two light sources on one surface. If both…

Kreiselkoffer Standardbild

Gyroscope in a Suitcase

When you take this case out of its holder, the first thing you notice is that it is quite heavy. Nothing special as far as that goes. But try turning around…

10173 Phänomen

Half Shadow

We see colours that are not there - how can that be? A hand is illuminated by a white and a red lamp. In the shadow area that is only illuminated by the white…

10178 1

Harmonograph

by Ivan Moscovich Two pendulums next to each other rarely swing in unison, but depending on when they were struck, one swings earlier, the other later. If they…

10427 Haupt

Hermann Grid and Scintillating Grid with Variants

From a certain distance with a steady gaze, it seems to "flicker" on the images, to scintillate. Hermann grid: If you look at the grid from a distance of about…

11834 1

Higher and further

This exhibit is not accessible during the winter months. The length and shape of each jet depends on the pressure in the water cylinder. Take a look at the…

10592 1

Hinged Kaleidoscope

Slowly close the hinged door, and count the number of regular polygons traced by the red cord: triangle, square, pentagon, hexagon,... Just before the door…

11750 Detail

Hot - Cold

Can something be hot and cold at the same time? We have no sensory experience for that and our temperature receptors give us crazy feedback! In this copper…

11624 Detail

Hot heap

The living organisms contained in a compost heap, such as bacteria and fungi, break down dead organic material and thereby gain energy for their life…

10181 Phänomen

Hot Spot

When a visitor stands in front of the concave mirror, he initially sees nothing but his own image. With a little skill, it is possible to place one's own hand…

10507 Detail

How big is a Million?

If you've never really had an idea of how much a million actually is, then set yourself the challenge of finding one black bead among 999,999 yellow ones at…

11963 Phänomen

Human electrical circuit

Several cubes with metal surfaces are placed near a larger cube. If you connect the surfaces of the cubes with your body, current flows through the body and…

11333 Illustration

Human Pointer

This exhibit is not accessible during the winter months. Show the true local time with your own body shadow. You are the hand on this sundial: you indicate…

10208 Detail

Hyperbolic Slot

At the sight of the straight rod and the cut-out slit in the red Plexiglas, one thinks that the rod would never pass through without being bent. But it is…

10210 Phänomen

Icy Bodies

by Shawn Lani Dry ice, solid carbon dioxide at -78° Celsius, has the remarkable property that it does not melt when heated but immediately becomes gaseous -…

10044 Phänomen

Image Relay

Four large lenses (three can be folded in and out, one can be moved along the longitudinal axis) are mounted one behind the other in such a way that two people…

10535 Haupt

Impossible Nuts

When the brain resists what the eye sees: A pencil pushes through two nuts in a seemingly impossible way. If you look closely, you notice that the big pencil…

10216 Phänomen I

Infrared camera

A highly sensitive infrared camera measures the heat radiation emitted or reflected by an object. The data is converted into a coloured image that represents…

10441 Haupt

Ink Fractals

Ink blots can be analysed not only in depth psychology, but also mathematically. By pressing two acrylic plates together, the ink distributes itself regularly…

11975 Haupt

Inner magnetic structures

With the help of a microscope, the magnetic structures ("domains") inside a magnetisable platelet are made visible. The result is a pattern of light and dark…

10217 Haupt

Internal Waves

Sure, waves are created at sea, in which the air above is not entirely uninvolved. But they also occur at the boundary between two immiscible liquids such as…

10218 Haupt

Inverted Double Pendulum

It is difficult enough to balance ONE pole vertically on one's fingers and impossible to balance TWO poles connected by a joint. And certainly not when the…

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It's About Time

by Bill Spinhoven In this installation, a video camera captures visitors' position and movements, temporarily stores the data, and then projects the sequences…

11040 1

Jellyfish

by Bernd Weinmayer A group of glass jellyfish - glassblowing art of the highest order - filled with colourful glowing neon and a few promillen of argon -…

11823 Haupt

Jumping Water

If you observe the water hoppers in this exhibition object, you might ask yourself a few questions. Is solid water flying through the air here? And do all the…

10314 1

Jupiter Pendulum

Strangely enough, the period of oscillation of the pendulum does not depend on the mass of the pendulum, but on the gravitational acceleration, which is only…

Kaleidoskop Foto

Kaleidoscope Experiments 1 to 6

Oversized toy or mathematical puzzle? Six kaleidoscopes invite experimentation and reward with crystalline 3-D images. Each kaleidoscope is equipped with a…

10220 Haupt

Kalliroscope©

by Karl Matisse A vortex generator or rather spectator par exellence. Give the turntable a short push, then stop it or even turn it in the opposite direction -…

11958 Phänomen

Kneading with magnets

In a bowl there are two strong horn magnets and a large quantity of small iron discs. The iron discs become magnetised near the magnets and can thus be kneaded…

11905 Illustration

Kopflos

In this exhibit, you can look at yourself in the mirror - but you can adjust the different stripes of the mirror.Maybe you can even manage to lose your head?

10994 Detail

Landfall

by Shawn Lani Landscapes are formed over millions of years and are subject to constant but very slow change. Whether mountains or valleys - here you can change…

10170 Detail I

Large drain vortex

Usually we only look into the eye of a water vortex from above - e.g. in the bathtub outlet. Here we finally see it from the side and can regulate the flow…

10247 Haupt

Leonardo’s Bridge

An impressively simple way to build a free-standing bridge with just a few planks, thought up by Leonardo da Vinci in the 15th century. With the wooden slats…

11015 Phänomen

Light Deformation

by Piero Fogliati An illuminated white form curves and multiplies in the air. The shadow of this form is a matching silhouette. A button allows you to slow…

10250 Detail

Light Island

Mirrors, lenses, colour filters and much more invite visitors to play with light sources and the light split by a prism. The function of the prism, the…

10252 Detail

Light Spiral

The light that spins! Polarised white light shines into a standing cylinder with a sugar solution. The sugar solution causes the direction of oscillation of…

10256 Haupt

Lights ON

Seven lights arranged in a circle, which are always switched on/off in sets of three by means of buttons, are all to be made to light up/not to light up.

10422 Detail

Liquid Dynamics

What a wind tunnel is for air, a flow trough is for water: they make turbulence of objects visible. Different flow bodies can be positioned in the initially…

10081 1

Lissajous Double Spring

Lissajous figures are the intertwined curves of a light-emitting diode that are created at the end of a spring rod. Such small works of art are the result of…

10259 1

Lissajous Rods

A relatively thin metal rod that is twice as wide as it is deep vibrates differently from a metal rod whose ratio of width to depth is 3:2. A superposition of…

10260 1

Lissajous Sounds

Two small mirrors vibrate at the same frequency as two loudspeakers. One mirror (and one of the loudspeakers) vibrates at a fixed frequency, the frequency of…

11810 Haupt

Look in the Clouds

This exhibit consists of a large screen onto which passing clouds in the sky are projected. In front of the screen there are some comfortable armchairs that…

10045 Phänomen

Look into Infinity

Through holes in a movable mirror you look at a fixed mirror. In this way, we see a seemingly endless sequence of images, which can also be curved if the…

11466 Detail

Love is in the air

by Dr. Martin Oeggerli When magnified, inconspicuous pollen reveals a fascinating variety of structures with an almost artistic aesthetic.

11967 Phänomen

Luminous sculptures

Two contacts are attached to each of three stations, which can be connected with the help of magnetic rods and iron balls. The rods contain light-emitting…

10254 Detail

Lying Water Disk

When two jets of water collide, as here, the water is deflected sideways and usually forms a coherent water skin in the form of a disc. Surface tension is the…

10278 Haupt

Machine with Concrete / Machine set in Stone

by Arthur Ganson Für die Ewigkeit genügen zwölf Schneckenradgetriebe 50:1 hintereinander! Denn in fünfzig Betriebsjahren verschiebt sich das letzte Zahnrad um…

10527 Detail

Magic Wand

Actually light is invisible. Well, at least we can't see it if it doesn't hit our eyes directly. Therefore a slide projection wouldn't be that intresting…

11991 Detail

Magnet in copper bar

by Shawn Lani The two copper rods hang in space like a split log. Between them is a magnet that can be made to float with the help of a second magnet from the…

11983 Haupt

Magnetic balance

Underneath a large ring magnet is a transparent box with a small magnetic cube and a base made of graphite. At exactly the right distance, the weight of the…

11984 Haupt

Magnetic building blocks

There is a magnet in each of the different building blocks. Depending on the position of the poles, the building blocks can be put together or repel each…

11992 Haupt

Magnetic diversity

by Niklas Roy There are many electromagnetic objects in this large box. Everyone can explore for themselves where the phenomena can be found and how they can…

11959 Haupt II

Magnetic repulsion

In a bowl there are two strong horn magnets and a large quantity of small iron discs. The iron discs become magnetised near the magnets and can thus be kneaded…

10457 Phänomen

Make the Invisible Visible

What does "convection" actually mean? What happens to water when it is heated? The projection of a strong lamp shining through water heated by an immersion…

10280 Haupt

Maxwell’s Wheel

A large and very heavy wheel is attached to the hub on both sides by a textile band. When the wheel is turned, the textile band wraps around the hub, shortens…

10136 Haupt

Meanderings

by Michael Brown Take a slightly inclined glass plate and let a little water run over it. You would think that the water would find the fastest possible way…

10283 Detail

Microscope Model

This simple microscope essentially consists of an object lens that magnifies the object about 6 times and an eye magnifier that magnifies the image of the…

11623 Detail I

Mimose

The leaves of the mimosa fold up as soon as you touch them. With this survival strategy the mimosa protects itself from predators, because the folded leaves…

10610 1

Mirror Made to Measure

How tall a mirror do you need to see yourself from head to toe? Does the height change if you’re closer or further away? (No!) Using the remote control, you…

Spiegel Labyrinth phä

Mirror Maze

Design a maze with Einstein’s image as it’s goal. At your disposal are five mirrors, many wall pieces, and your trial-and-error learning of the laws of…

10603 1

Mirror Writing 1

Handedness of letters: Most letters of the Roman alphabet are asymmetrical both horizontally and vertically. But C, D and E look the same upside down, though…

Spiegelschriften2 Foto

Mirror Writing 2

Use the magnetic letters to create words and sentences that can also be read normally in the mirror. You can also slide the boards under the mirror - in doing…

10529 Haupt

Misty Messages

What seems to be grey fog from distance, emerges to a picture when the second matching plate is placed exactly on top of it.

10288 Haupt

Möbius Cube Loop

Twelve 50:1 worm gears in a row are enough for eternity! Because in fifty years of operation, the last gear wheel moves by one thousandth of an atom. In other…

10029 Detail II

Model Eyeball

Here we can see why we can see objects sharply both far and near and what "short-sightedness" and "long-sightedness" are all about.

10289 Haupt

Moebius Strip

Many things have two sides, but this structure definitely only has one! To prove it, the edge of the Möbius strip is travelled with a small toy locomotive and…

10290 Haupt

Moiré

Two identical perforated plates mounted one behind the other at a distance of approx. 10 cm create the impression of black point clouds. With increasing…

11754 Detail

Movement Blindness

If there are some stationary objects above a rotating pattern, then the brain constantly receives different information about the rotating pattern or always…

10186 Haupt

Moving Gray Areas

The grey figures have thin black and white borders. The brightness of the background can be changed with a slider and the figures appear to move. The…

11625 1

Moving Objects

by Pe Lang Several hundred small rubber rings wander as if by chance from right to left and vice versa along horizontally stretched strings. With the help of…

10419 Haupt

Moving Stripes

A camera cannot capture fast movements sharply if the exposure time is too long. This effect can also be seen in our eyes: If one wants to see a fast movement,…

10296 Haupt

Mozart’s Dice Music

Mozart's idea was to select 16 bars from 176 bars arranged in two tables by rolling the dice 16 times. In this way, a piece of music that has never been heard…

11036 Phänomen

Multi-Color Luminglas

by Wayne Strattman By stroking the glass surface, one can determine the choreography of the chaotically twitching plasma cascades oneself and make the confused…

11970 Haupt

Musical antenna

A large antenna registers the changes in its own electric field when people enter it. The changes are made audible as sounds. In this way, the antenna can be…

11844 1

Musical Cloudburst

This exhibit is not accessible during the winter months. Many people only believe it when they have taken a shower and heard it for themselves. If you stand…

11039 Detail

Neon Sinfonie

by Bernd Weinmayer What is remarkable about this goblet with its extremely long, slender stem is the "pattern effect" in the plasma, i.e. the neon light fan…

11793 Detail

Never-Ending Scale

When playing the piano keys arranged in a circle, the scale seems to rise or fall infinitely. How is this possible? The secret lies in the fact that six notes…

10299 Phänomen

Newton Rings

Where only a plain glass plate is visible under normal light, a bizarre landscape of concentric light and dark rings, similar to the altitude curve rings…

10455 Haupt

Non-round Wheels

And they do roll! To make a square, a pentagon or any other shape roll, you only have to create a suitable rolling track. It turns out that for polygons a wavy…

11506 Illustration alt

Nothing but air

With a dark field illumination (schlieren optics), the smallest changes in air density (refractive index) are made visible. The apparatus is so large that the…

10589 Illustration alt

Parallel Mirrors

If you look between the pair of parallel mirrors, you see repeating images stretching from left to right. With perfect retro-reflection, this would go on…

10547 Detail

Particle or Wave

In this experiment, it becomes clear that light can be both. A laser beam falls on either a slit or a double slit. The typical interference and diffraction…

11728 Detail

Pass and become

Skin beetles and their larvae feed on dead animals. They ensure that carcasses are rapidly decomposed and nutrients are recycled. The entire recycling process…

11961 Illustration

Pedal generator

The pedal generator can make you sweat quite a bit just to boil a sip of water. How much (pedal) power do you think it takes to run a radio, television or…

10409 1

Pegboard Pendulum

An aluminium rod can be inserted into the Plexiglas wall at various places. This turns the long thread pendulum into a short thread pendulum while swinging…

10309 1

Pendulum Cradle (Click-Clack)

Impulsive people often do not know that for natural scientists, momentum has a numerical value and is measured in metre kilograms per second. The momentum of a…

10310 1

Pendulum Wave

The fact that how often a clock ticks depends on the length of the pendulum can be heard at the latest when the hasty cuckoo clock hangs next to the leisurely…

10308 1

Pendulums of Varying Weights

The two pendulums only differ in the height of a recess where you can put a weight. Without a weight, both pendulums swing the same. What changes if you put a…

10321 1

Phased Pendulum

Set a pendulum swinging? Nothing simpler than that, you might think! Not quite so, if you are not allowed to touch the pendulum. The pendulum is only to be…

10331 Haupt

Pi

The mysterious number Pi - to 20,000 places after the decimal point in the form of a number spiral on a poster.

10334 Detail

Pin Screen

200,000 needles hung in a perforated board animate every barefoot fakir to stroke. But don't worry about aches and pains, the needle tips are blunt! The…

11964 Detail

Pins in a magnetic field

Inside a transparent sphere is a very strong magnet. Iron pins can be held or placed outside the sphere. These align themselves with the magnetic field and…

11938 Haupt

Plantoid

This tree - the plantoid - can glow in a wide variety of colours. A block programming language can be used to program any colour gradients for the glowing…

11977 Detail

Plasma columns

A red glowing plasma is generated in two glass columns by an electric field. If you touch the column, you change the electric field. This attracts the red…

11020 Phänomen

Plasma Top

by Ed Kirshner A large glowing glass platter is the rotary track for a double-ended glass top. Watch while the demonstrator gently rolls the heavy glass top…

11308 1

Plato’s Playground

by Don Doak A reflection of the reflection of the reflection... - makes a kaleidoscope! The three mirrors in this tube are arranged in such a way that a…

10593 Illustration alt

Polytakis

by Caspar Schwabe Created by Zurich mathematician/artist Caspar Schwabe, Polytakis is designed to provoke kaleidoscope aficionados and quizzical visitors…

10040 Haupt

Population Growth

The current population figures in the individual continents and in total are displayed on a world map. The constantly moving counters always show the absolute…

10343 Haupt

Pulfrich Phenomena

Looking through the optics at the pendulum, it appears to swing in an elliptical path that changes direction when the grey filter is moved in front of the…

1034210343 Detail

Pulfrich Phenomenon

A simple trick with an amazing effect! If you hold a dark filter in front of ONE eye and look at a swinging object, it suddenly appears to move in a circular…

10364 Haupt

Pythagoras’ Theorem - Easy to weigh up!

Hypotenuse squares and cathetus squares, since they are made of identical material, can be weighed against each other. This proof can be carried out with all…

10363 Haupt

Pythagoras’ Theorem - flows from this

The Pythagorean theorem describes a transformation of areas. In a right-angled triangle, the sum of the squares over the two smaller sides is equal to the…

10346 Haupt

Quasi-Crystals

Geometric shapes also play a major role on an atomic scale. Crystals form according to mathematical rules. But what can only be studied there with the help of…

10594 Ilustration alt

Radar Reflector

When light strikes a rough surface it is reflected all over the place. Now polish that surface to cut out all the diffuse radiation, and you get a mirror off…

10347 1

RadiMax (MaxiWheel)

For the physics enthusiast, this "infinity gyroscope" may be a delightful interplay of moment of inertia, angular momentum and precession. For all other…

10352 Phänomen

Rainbow Smileys

by Paul Friedlander Nothing special at first glance: A whole tree of different rotating black/white patterns are illuminated by a seemingly white lamp. But the…

10351 Detail

Real-Virtual, Virtual-Real

by Piero Fogatiati A small object is hung on a thread in the bulbous glass vessel, which is illuminated from below. But miraculously, two objects suddenly…

11846 1

Red Explorers

by Peter Bissig The observers direct their gaze at various points in the park to what is easily overlooked or simply interesting. Find out what they are…

10435 Haupt

Refracting Telescope

This amazingly simple instrument revolutionised astronomers' view of our universe! Essentially, the Kepler telescope consists of a powerful converging lens…

11043 Detail

Refraction up to Total Internal Reflection

Light propagates in a straight line - but only as long as it is in a homogeneous medium. At the interface between different materials, the direction of…

10354 1

Resonant Pendulum

Vibrate a steel block weighing 260kg suspended from a rope with a small refrigerator magnet? Impossible! It is possible if you pull on the refrigerator magnet…

10356 1

Resonant Rings

It is not only remarkable that every single one of this series of 6 spring steel rings of different sizes reacts to specific excitation frequencies. The…

10407 1

Resonant Rods

Zwei (unterschiedlich) lange Metallstäbe sind vertikal auf einem wackelndem Tisch angebracht. Bei bestimmten Frequenzen überträgt sich die Schwingungsenergie…

11802 Haupt

Reversed Perspective

This "art gallery" is a man-high three-dimensional spatial sculpture that virtually turns the room upside down and shows things in the reverse or upside-down…

10355 Haupt

Rhombo Puzzle

by Guebeli A rhombic dodecahedron can be assembled from 12 building blocks (2 connected "parallel flax"/palallelepipeds each). By the way, these shapes also…

10052 Detail

Rift Zone

by Ned Kahn A thin layer of sand lies over a membrane filled with air, in which there are small holes. Volcano-like sand eruptions occur above the holes and…

11006 1

Rockspinner

by Zachary Coffin This exhibit is not accessible during the winter months. Strong as Obelix! Moving a block of granite weighing tons - child's play thanks to…

11555 1

Rodeo Gyroscope

Why not sit down with a gyro? After all, it is solidly mounted on tiltable bearings, and a Plexiglas bonnet protects you from the motor-driven flywheel. But…

10388 1

Rope Squirter

A large rope loop closed to form a ring runs between two pulleys, chased upwards by the electric motor, in a vertical plane. Gently disturbing it by hand, it…

11987 Detail

Rotating magnets

One magnet is set into rapid rotation. If you now approach a second magnet to the rotating one, the second one starts to rotate as well. At a certain distance,…

11828 1

Rotating Pendulum

This exhibit is not accessible during the winter months. An impulse triggered with the handwheel travels up and down the rotating wheel as a wave movement. Try…

11629 Detail I

Rotating Tunnel

It turns and swings...This exhibit is about a conflict between two senses, the sense of balance and the sense of sight. Most people can't turn around once in…

10612 1

S-bend Mirror

Lying and standing. Some fairground mirrors make you very small, others very large. Our mirrors do both! Make yourself small, tall, thick, thin and even…

10360 Haupt

Sand images

The trickling sand between glass panes tells more than an hourglass. For example, it always starts to slide at the same angle, the angle of repose, which…

10426 1

Scintillating Screen & Hermann Grid

In this fascinating combination of the scintillating grid and the classic Hermann grid, amazing phenomena appear in the new pattern in addition to the…

11575 Detail II

Sculptures in stroboscopic light

by John Edmark "BLOOM Revelation and BLOOM Accordance On this exhibit you can change the frequency of the light - what's the effect?

11904 Haupt

Seeing atoms

Here at Technorama, you can see atoms with the naked eye in this exhibit. This is a unique experience in museums worldwide. (The ion trap in the exhibit was…

11803 Phänomen

Separated Fingers

Seeing and moving the symmetrically deformed fingers in this particular arrangement creates a strange sensation where the fingers seem to be transformed into…

10361 Detail II

Settling Column

by Ned Kahn In a rotating glass tube that is mainly filled with water, the sand that it also contains always follows gravity - it settles at the bottom of the…

10048 Phänomen

Shadow Box

Flash! Your shadow remains on the wall. Biip, biip, biip and flash: you can already see your figure on the wall, in the position you have chosen for this…

11316 Haupt

Shadow Casting Panel

by Drzach&Suchy Shadows are more than the absence of light - they are information. On this "shadow cast plate", the image information of two different images…

11318 Haupt

Shadow Cloud

by Drzach&Suchy Where there is light, there is also shadow - and some secrets are revealed through shadows! A large, strange-looking sphere is illuminated by a…

Schattenzaun 21 06 2021 1

Shadow Fence

by Drzach&Suchy These shade fences only work when the sun is shining. The fences are metal sheets with holes and panels sticking out from the sides. When you…

11317 Detail

Shadow Pendulum

by Drzach&Suchy Sometimes only shadows make things visible - and brought into the light, they become invisible! A large clock pendulum swings from one side to…

10597 Illustration alt

Shake Hands with Yourself

The concave mirror is shiny black: a red ball dangles invitingly, brightly lit. Set the ball swinging, then slowly reach to catch it. Your mirror-image hand…

11331 1

Shepherd’s Sundial

This exhibit is not accessible during the winter months. A simple sundial that was used by shepherds centuries ago: If you know the exact date, you can read…

Spiegelkugelv1 phä

Shiny Metal Sphere

Here is the fish-eye effect: the centre of the image looks correct but round the edge, where light strikes the sphere’s surface at an oblique angle, it gets…

11838 Himmelsfenster Illu

Sky Window

What!? - a hole in the landscape through which you can see the sky? It also changes its shape when you move. From the bridge it looks like a circle, but up…

10165 Detail

Sliding Gray Step

Light and dark is not an absolute quantity in our perception, which is well illustrated by this simple example: A pane of glass with grey stripes can be moved…

10244 Haupt

Slow Blue

A red, a green and a blue light spot can be moved on a yellow surface whose brightness can be changed. The blue spot always seems to "lag behind".

10392 Haupt

Slow Bubbles

Silicone oil is more viscous than water, so short jolts from the air pump allow big bubbles to form in it nice and slowly and rise solemnly. Of course they…

11746 Detail

Smell Habituation

If a scent mixture is administered for smelling, which consists of a dominant and a weak scent, one only smells the dominant scent; if one then smells only the…

10386 Phänomen

Soap Bubble Basin

Even big kids like to follow their play instinct here. With steel hoops of different sizes dipped in secret-receptive soap solution, soap bubbles several…

10387 Phänomen

Soap Film Painting

Everyone knows soap bubbles. But here, a bar lying across in the soap solution is slowly pulled up, which stretches a 1.5m wide and up to 1m high soap film!…

11988 Detail

Solarmobile

The elements in this mobile each contain a solar cell and an electric motor. If you point the light of a lamp at one of the solar cells, the electric motor…

10395 Haupt

Soma Cube

The 7 classic components of the soma cube can be assembled into the cube in 240 different ways.

11847 Illustration

Sonnenfänger

With the sun catcher, you can look at the sun indirectly and thus completely safely. To do this, you have to align the exhibition object with the sun and then…

10372 Haupt

Sophisticated Shadows

Light is actually invisible! At least we can't see it unless it hits our eyes directly. In this respect, a slide projection without a screen would not be…

11956 Haupt

Sorting machine

The sorting machine uses magnets to sort different coins according to their conductivity. To do this, the magnets are moved very quickly under the coins. The…

10553 Haupt

Spectra

Even less than the ear can hear individual instruments in a concert, the eye is able to assign individual colour tones in the impression of colour. A…

Spinnen Sonnenuhr 1

Spider Sundial

This exhibit is not accessible during the winter months. Swiss Timing once with a Swiss flag: The shadow of a flagpole as a time pointer. This spider's web…

11740 Haupt

Spot the Difference

When viewing an image, the image information is recorded and stored in the brain. If the image is briefly interrupted by a neutral image and then shown again,…

10345 Detail

Square Puzzle and the Square to Triangle-Conversion

Nine square tiles of completely different sizes are to be arranged into an almost square rectangle.

11818 Phänomen I

Squaring the Circle

In a glass cylinder there is a strange wire-like structure. If you look through the structure from a very specific distance at a very specific height from one…

10423 Detail

Squirming Palm

This experiment works very similarly to the waterfall effect at the same table. If you stare at a rotating dot pattern for a while and then at the palm of your…

10410 Haupt

Standing Water Disk

When two jets of water collide, as here, the water is deflected sideways and usually forms a coherent water skin in the form of a disc. Surface tension is the…

11037 Phänomen

Still Empty

by Wayne Strattman Filling a glass with light - a truly Sisyphean task! The plasma constantly flowing from the tap is meant to show that emptiness remains.…

11962 Haupt

Strom spüren

Here you can feel the sensation of electric current. To do this, you place two fingers on two contacts and increase the voltage with a button for as long as…

11980 Phänomen

Superconductivity

Together with a Technorama employee, various experiments with superconductors can be carried out here.

10300 Haupt

Surface Tension

The surface of the water can develop amazing forces. When you slowly pull the wire ring out of the water, you can feel the surface tension of the water trying…

11986 Phänomen

Swimming with the current

Single-cell organisms swim around in a chamber under a microscope. At the push of a button, the chamber can be put under voltage. The single-celled organisms…

10373 1

Swinging Drawing Board

A board suspended at four points from steel cables over 2m long somehow rocks when you bump it, but how somehow? It is very easy to find out by placing a sheet…

10448 Haupt

T-Puzzle

A "T" can be put together from four parts. The difficulty here is that the cuts are at an angle of 45° to the letter bars.

10432 Haupt

Taylor-Couette Vortices

This experiment consists of two cylinders placed inside each other. The gap of 12 mm width is filled with a liquid (calliroscope), which makes flows clearly…

10434 Haupt

Tectonic Basin

by Ned Kahn When the earth shakes, even ground that appears solid begins to flow or even "boil" - seemingly like a liquid. In this experiment, the vibrating…

11788 Haupt

Teeming world in water

A sample from the stream in Technorama Park contains different organisms. Even with the naked eye you can see it teeming in the water bowl. Looking through the…

10237 Haupt

Template Code

A jumble of letters can only be disentangled by means of the appropriate template. Conversely, it is easy to encode a message consisting of 36 letters in a way…

11025 Haupt

Terrella

by Bill Parker In the centre of a large glass sphere filled with diluted inert gas sits a small metal globe (Terrella stands, belittlingly, for terra = earth).…

10437 Haupt

Tetrahedron Puzzle I

This puzzle game is all about spatial imagination. Two bodies of the same size are to be joined together to form a tetrahedron.

10438 Haupt

Tetrahedron Puzzle II

This puzzle game is all about spatial imagination. Two bodies of the same size are to be joined together to form a tetrahedron.

10439 Haupt

Tetrahedron Puzzle III

This puzzle game is mainly about spatial imagination. Four (2 equal) bodies made of spheres are to be assembled to form a tetrahedron.

10071 Haupt

Th shortest Way is not always the quickest

The race of the bowling alleys: Three tracks all have the same height difference from start to finish and also the same horizontal distance, but different…

11864 Haupt

The big is in the small: crystals

by Ward Fleming You can shake the container gently to set the ceramic balls in motion. If you move it long enough and regularly, the balls will arrange…

10338 Haupt

The Circle’s the Limit!

The squaring of the circle or: If you don't want to believe that the circle is the limiting case of polygons with more and more corners, you can have green…

11795 Detail

The Eyes help you lift

This exhibit is about the conflict between the visual situation and what I expect from it, how the weights feel, and the feeling when I actually lift the…

11944 Haupt

The finest difference

How fine is your dexterity? Very fine: experience how this is defined for you with this exhibit. You can feel when something sticks out by ten millimeters.…

11772 Detail

The separated Self

A sideways glance into this mirror makes you believe that your right hand is your left and vice versa. However, if you move only the hand that is invisible…

DSCF1135

The Tea Leaves Experiment / Tea Cup Experiment

Coloured aluminium leaves in a cylindrical water container (approx. 10 l capacity) accumulate in the centre of the vessel after the cylinder has been briefly…

11971 Haupt

The twist with the coil

A coil is rotated in the earth's magnetic field and thereby generates current. The current generated depends on the position of the axis of rotation in…

11185 Wärmebild Illu

Thermal image

The "temperature-sensitive" mirror image - A thermal imaging camera registers its heat radiation and converts this information into an image: cold areas are…

11473 Haupt

Three Balls on a String

The system behaves like a one-, two- or three-part pendulum at low, medium and high rotation speeds. Each ball follows a defined, uniform horizontal circular…

11815 Haupt

Three-dimensional Projection

On a screen you see a red and green shadow of a tetrahedron or people moving on the opposite side of the screen. They are illuminated there by a red and green…

11833 1

Tit for tat

This exhibit is not accessible during the winter months. When it stands still, this "water carousel" actually looks quite normal. However, when the carousel is…

10447 Detail

Total Internal Reflection

Trapped light - A laser beam with a variable angle shines into a plexiglass rod. If the laser beam hits a side surface, it is completely reflected and emitted…

10103 Phänomen

Touch the Spring!

Through an opening you can see a feather in a large box. If you want to touch this feather, however, you reach into the void. - The feather is reflected on a…

10451 Haupt

Towers of Hanoi

Five discs are stacked from large to small on one of the three poles. The task is to move the discs to another bar while observing the rules: move only one…

10068 Haupt

Trapezoidal Window

A window drawn in perspective, which thus takes on a trapezoidal shape, rotates around its own axis on a nylon thread. If you look at the rotating window from…

10246 1

Travelling Chain

by Norman Tuck A fleeting, playful strip of the circulating bicycle chain - and it already performs amazing twists or gentle, artistically elegant undulations.

11829 Illustration

Tricky target well

This exhibit is not accessible during the winter months. Here you have to hit a target in the water with a water jet. To do this, you have to use your combined…

10093 1

Triple-period pendulum

The situation: Three thread pendulums of different lengths with identical flywheel mass. In addition, different weights are available for attachment to the…

11763 11813 Detail I

Turning Shadow

A shadow of a rotating cube is viewed on a ground glass screen using Pulfrich glasses. These are glasses with one eye opening open and the other with a grey…

10091 1

Turntable

A table with a recessed spinning disc allows for a variety of gimmicks. Staggering spinning tops, standing spinning balls or even more difficult billiards. Who…

10362 Haupt

Underwater Sandstorm

If you go into the sea on the shallow sandy beach, you will see an underwater dune landscape formed by the tides. A plexiglass sphere full of water and a…

10417 Haupt

Unwanted Light Reflections

Photographers know the problem! Disturbing light reflections often appear on panes of glass or on water. However, you can make the light reflections disappear…

10287 1

Vertical Mobiles (Chaotic Pendulums)

by Daniel Richard Randomness is completely excluded in a simple pendulum, its behaviour can be described exactly on the basis of its length and deflection.…

10468 1

Vibrating Pin Screen

by Ward Fleming Almost a quarter of a million swinging pendulums! Nails of different lengths suspended in a perforated board are set in vibration by a…

10411 1

Vibrating String

One end of the string is attached to a small spring steel plate that swings back and forth 100 times per second. The other end of the string is held in place…

10177 detail

Vibrational patterns

A bowl of water, set in vibration, illuminated and projected, shows how liquids, when they vibrate, change in leaps and bounds into wondrously decorative…

10370 1

Visible Effects of the Invisible

That sound waves are periodic compressions and rarefactions of the air, whizzing along at 1200 km/h (Mach 1), has been heard before, but one would like to see…

10445 Haupt

Vortex Action in Bottles

A race to (not of) two bottles! Who can empty their PET bottle faster? The fastest way to empty a bottle is not simply to turn it upside down. The exhibit…

10518 Haupt

Vortice Cylinder

The agitator inside the cylinder, driven by a hand crank, makes the water first turn slowly, then faster. The water rises up the walls and forms a whirlpool…

11519 Haupt

Warmfront

Visualisation of cloud formation on a warm front. If air masses with different temperatures meet, they are not simply mixed. Obviously, different layers form.…

10975 Haupt

Watch Water Freeze / Ice Flowers

Water is a special substance - and an aesthetic one at that. We can see this especially in the growth of ice flowers, when liquid water begins to crystallise…

10497 Detail

Water Bell

With a flick of the wrist, you can regulate the amount of water that flows from below against the flat disc. Directed outwards through this disc, the water…

11839 1

Water film

This exhibit is not accessible during the winter months. Is that really water that clings like a skin around the silver mushroom body, and even on the slanted…

11841 1

Water Music

This exhibit is not accessible during the winter months. Here you can become musicians and compose your own personal water music! Find out for yourself how the…

10495 Phänomen

Water Parabola

Parabolas are the visualised result of mathematical functions. Not only! One finds parabolas in many natural phenomena. For example, the higher the rotation,…

11797 Detail I

Waterfall Effect (Rotating Spirals)

When this disc is rotated, the spiral patterns seem to turn both in and out. An amazing effect occurs when, after watching these illusory movements for some…

10494 Detail

Waterfall Effect (Rotating Spirals)

When this disc is rotated, the spiral patterns seem to turn both in and out. An amazing effect occurs when, after watching these illusory movements for some…

10190 1

Wave Machine

Hier wird "Holz anfassen" beim Wort genommen. Nicht zum Anschauen, sondern zum Schalten und Walten, zum Hebeln und Kurbeln, zum Treten und Klappern hat Pierre…

10129 1

Waves in springs (Big Slinky)

A slight impulse on the 12-metre-long spring shaft and a longitudinal wave propagates like a stone throw into the calm water surface to bounce up at the end…

10161 Haupt

Weird Wheels

Disc-shaped bodies that have the same diameter at all points are called "equal dicks". If you put a plate on the out-of-round wheel pairs and drive with it,…

11800 Haupt

Welcome to Sector K… ?

An apparently meaningless word that appears to be made up of jumbled letters suddenly makes sense when the lower half of the word is covered. The upper halves…

11389 Haupt

What does she say?

The Mc Gurk effect: Do you hear what you see? Four faces on a screen speak simultaneously, even synchronously. But if you change your gaze from face to face,…

10862 1

What is Polarization?

Polarisation is the direction of oscillation of the electric field of an electromagnetic wave.

10251 Haupt

Wheel of Life

Does our brain function like a film camera? Here, similar to a flipbook, an endless film is running, only the main actors are just a few points of light.…

10485 Detail

Why is the Sky blue?

Why on earth is the sky blue and not black as night? After all, we are looking directly into the almost black universe. A slide projector shining through a…

11739 Haupt

Wide of the Mark

By throwing a ball through a target several times, we become so practiced in the throwing process through our visual and tactile stimuli that after some time…

11328 1

Wind Machine

This exhibit is not accessible during the winter months. A gentle breeze, a stiff wind or even a storm - you hear it all the time, but have you ever…

10084 Haupt

Wire Mesh Sculpture

by Michael Rudnick A very ordinary fluorescent tube has remained without what makes it so: the coating with luminescent material. Thus, through the clear…

10482 Haupt I

Wobbly Bridge I Arch Bridge / Wobbly Bridge II Suspension Bridge

An arch bridge made of wooden bricks can be loaded with a weight stone at different points. Since the bricks are held together with rubber bands, the resulting…

10519 Haupt

Wolf, Goat and Cabbage

A tricky task: The three objects are to be brought across the river by the ferryman, whereby there is only room for one at a time on the ferry. Neither cabbage…

10201 1

Wooden machine B

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

10195 1

Wooden machine E

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

Holz F

Wooden machine F

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

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Wooden machine G

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

10203 1

Wooden machine H

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

10204 1

Wooden machine I

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

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Wooden machine L

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

10199 1

Wooden machine M

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

10198 1

Wooden machine N

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

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Wooden machine O

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

10191 1

Wooden machine P

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

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Wooden machine Q

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

10194 1

Wooden machine R

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

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Wooden machine S

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

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Wooden machine T

Here, "touching wood" is taken literally. Pierre Andrès has not designed his creations to be looked at, but rather to be shifted and manipulated, leveraged and…

10096 Haupt

You & Me

With a semi-transparent mirror, the faces of two people sitting opposite each other can be completely or partially merged, depending on the lighting.

10144 Haupt

Your Birthday in Pi

With a probability of over 99%, you can find your own birthday or any other birthday at these computer stations as a six-digit number combination in the first…

Die Nase vom Vater 1

Your Father's Nose...

Share your face with someone else! Between the mirror strips you can look at the other person's face so that you can alternately "see" your own eyes, a foreign…

10613 1

Zoom Mirror

by Christian Megert This mirror is flexible. It changes its shape from convex to concave and vice versa. Seen from a distance, your mirror image is upright and…

10867 Detail

«Poppier»

by Patrick Hughes At first glance, the painting "Poppier" by seems like a completely normal painting. But when you walk along the painting, it seems to develop…

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Accessibile for people with cognitive disability

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Accessible for people with hearing disability

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Accessible for people with visual disability

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Little fine motor skills required