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…
Adhesive Air
Coandă Effect: How shape, position, and surface influence airflow. The Coandă effect occurs when fluid or gas jets deviate from their original flow direction…
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…
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…
Air cushion
Inventive talent is called for here! Use scissors and tape to build objects out of paper that float on the wide air cushion. While testing and optimising, you…
Air Fountain
Dance with scarves. They rise and fall. Colorful scarves, moved by the airflow as if by an invisible hand. Choreography: visitors on the platform. by Daniel…
Air lift
The vacuum makes the difference. When the ball moves up the tube, the airflow is directed in such a way that a vacuum is created. How must it be directed for…
Ascending magma
by Ned Kahn No, it is not real magma, but this model magma nevertheless makes it clear to us what processes are going on deep under a volcanic vent. Air is…
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…
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…
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…
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…
Bernoulli’s Elephant
by Paul Spooner 2016, Cabaret Mechanical Theatre, England What is a pink elephant doing at Technorama? The Bernoulli Elephant is a work by the artist Paul…
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…
Big Bounce
Oops – something’s taking off! A truly impulsive experiment: balls that bounce much higher than their starting point! The three differently sized balls move…
Blind Juggler
The Blind Juggler can juggle up to four balls at the same time without any sensors.
Bouncing (Steel) Ball
Actually, everyone has dropped a ping-pong ball on the table and noticed that the clacking happens more and more rapidly until the ball finally stops. But…
Boyo
This exhibit is not accessible during the winter months. The boyo is the reverse of the yo-yo, where when the spool is unwound from the string, just before it…
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…
Cartesian Diver
Every body experiences buoyancy when it is immersed in another "medium" - be it a liquid or even a gas. Ships, submarines, hot air or helium balloons - all…
Catenary Arch
Although known for a long time, it was probably the Romans who perfected the use of archways to create filigree structures. The arch has special static…
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…
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…
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…
Chembongo
A stone with a mind of its own. This giant “Celtic rocking stone” (Chembongo) behaves peculiarly: when nudged, it starts to rotate. Turned the wrong way, it…
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…
Cloud Chamber
Particle Zoo: Ever seen a muon? Electrically charged particles are not directly visible, even in the diffusion cloud chamber. However, alpha and beta…
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…
Confused Sea
by Ned Kahn Here you can play wind god at will with a rotating and adjustable fan in a semi-circular plexiglass bowl filled with water - Aeolus would have…
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,…
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…
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…
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…
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…
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…
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…
Distant receiver
With this exhibit, you can amplify the sounds in the park and hear things that you would otherwise not be able to perceive. For example, can you hear the birds…
Double Gyroscope
A variety of experiments are possible with this double spinning top. What happens if you drive both flywheels in the same direction and turn your frame…
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…
Echo Pipe
This exhibit is not accessible during the winter months. Shouting, calling, whistling, clapping: Here you can send all kinds of sounds into the echo tube. And…
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…
Fading Motion
Actual physical oscillations are always damped, as they always release energy to the environment (e.g. through friction), which ultimately leads to…
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…
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…
Fog wind tunnel
Streamlines become clearly visible. This is how flowing air behaves: when it encounters a shape, it hugs its surface and gets deflected. The wind tunnel…
Fork balance
You can not only eat with a fork, but they are also easy to balance....
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…
Full body involvement
Perceive quickly and react immediately with coordinated, skillful movements. Developed as a piece of sports equipment, “Full Body Involvement” promotes…
Get the wrong end of the stick?
This exhibit is not accessible during the winter months. Here you can literally "pull the lever" and lift up to three other people, even if they are all much…
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…
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…
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…
Hovering between extremes
Experience the electrostatic force. Can the polystyrene ball float between the upper and lower hemispheres? No, but it can jump back and forth between…
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 -…
Infalling Cloud
by Ned Kahn The endlessly into the funnel falling and swirling fogs resemble a galactical spiralfog. The water steam is denser than the surrounding air and is…
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…
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…
Inverted Foucault Pendulum
The inclination of the tube in which a thin rod is made to swing can be adjusted. In addition, the hemisphere with the whole device can be rotated by hand. How…
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…
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…
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 -…
Klankkaatser
by Hans von Koolwijk The "Klankkaatser", which is about 10 metres high, has the shape of an ellipse in longitudinal section. Such an ellipse has two focal…
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…
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…
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…
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…
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…
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…
Loose Stone Bridge
Building a load-bearing bridge from a few loose stones? Using a template, the stones can be put together in the right order to form an arched bridge; this can…
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…
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…
Magdeburg hemispheres
Air out! Hemispheres become inseparable. Through vacuum pressure, two hemispheres joined into one cannot be separated anymore. The experiment of the mayor of…
Magic Ring
This ring never settles down… When we spin a coin, it quickly lies down on its side. This ring, however, spins much longer. Once set in motion, it refuses to…
Magic Wave
A mechanical work of art: A rhythmic rise and fall of metal segments, reminiscent of traveling waves. With a remarkable setup, the artist induces phenomenal…
Magic Wave Model
Magical wave in the stairwell – principle clearly explained. A rotating arm, cords, guide points, and straight metal segments create a wave-like motion that…
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…
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…
Marble track wall
Various tubes, wooden boards, cardboard strips, etc. can be attached to the large perforated walls with long wooden dowels. This creates very individual marble…
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…
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…
Momentum Machine
Have you ever wondered how figure skaters manage to turn around their own axis so quickly during a pirouette? It's pure physics, try it out! You stand on this…
Moonwalk
This exhibit is not accessible during the winter months. Have you always wanted to know what hopping or jumping on the moon feels like? This Technorama…
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…
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…
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…
Obstinate Swing
This exhibit is not accessible during the winter months. These swings, which are linked by a crossbar, can set each other in motion. However, the energy you…
Oscylinderscope (Wave Watch)
by Norman Tuck A flip-book for vibrating strings: A black drum with white horizontal lines is set in rotation and the strings stretched in front of it are…
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…
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…
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…
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…
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…
Propulsion paths
Gear wheels of different sizes can be put together and several wheels can be connected with rubber bands. Can you make the whole construction work from start…
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…
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…
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…
Resonant Rods
Zwei (unterschiedlich) lange Metallstäbe sind vertikal auf einem wackelndem Tisch angebracht. Bei bestimmten Frequenzen überträgt sich die Schwingungsenergie…
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…
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…
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…
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…
Rotating Chair with Bicycle Wheel Gyroscope
Did you know that when cycling at a certain speed, you have to pull the handlebars to the right to initiate a left-hand bend? Only then does the wheel tilt…
Rotating Chair with electric double Gyroscope
A flywheel with two rotating discs can be driven at one station - either both discs rotate at high speed in the same direction or in opposite directions. If…
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,…
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…
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…
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…
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…
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…
Spindrift
by Shawn Lani A flat, curved acrylic bowl ensures that the discs sent off on it do not run away, but come back again. In this way, it can be experienced that,…
Standing Water Disk
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…
Suspension Bridge
Here you can experience the resonance frequency of the bridge. The resonance frequency is the natural frequency at which the structure vibrates most easily.…
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…
Switch-over Pendulum
In the centre of this pendulum rod is a large disc that can rotate freely. Large extended bodies perform a rotational movement in the pendulum and behave…
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…
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…
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…
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…
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…
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…
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…
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.
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…
Turbulent Orb
Ever set a globe in motion? If you rotate the globe with the flowing liquid by hand wheel, there are horizontal stripes because the liquid is gradually carried…
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…
Two Wheels and a Ball
If two parallel discs rotate at exactly the same velocity, it is easily guessed how a ball located in the middle of the connection between two edge points…
Underwater Avalanche
by Ned Kahn The "sand" in the round vessel filled with water consists of tiny glass beads. Depending on how steeply you tilt the disc, strongly different flow…
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…
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.…
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…
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…
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…
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…
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…
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…
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.…
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…
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…
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…
Water games
This exhibit is not accessible during the winter months. Pump like the world champions: Here, water can be pumped in the most diverse ways. A big playground…
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…
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,…
Water Vortex
This exhibit is not accessible during the winter months. This bowl is filled through four nozzles and has a drainage hole slightly to the side. Thus, the water…
Wave Patterns
Waves on the surface of a thin layer of water become clearly visible with a suitable projection. A vibrating beam produces waves with straight-line crests.…
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…
What is Polarization?
Polarisation is the direction of oscillation of the electric field of an electromagnetic wave.
Whisper Route
This exhibit is not accessible during the winter months. Two satellite dishes or parabolic antennas face each other at a distance of 40 metres. If one of the…
Wild water wheel
This exhibit is not accessible during the winter months. Depending on the speed of rotation of the water drum, you can transport different amounts of water up…
Wind Veil
by Ned Kahn This façade is a real eye-catcher: it makes the movement of the air around us visible in an impressive way. Thousands of small aluminium plates are…
Zen-Brunnen
This exhibit is not accessible during the winter months. What does the water pumped up from the last two pumps of the water feature do? It combines to drive a…
Ba dum tschak - Programming a digital orchestra
The mission is simple: We compose the next summer hit! But producing groovy rhythms and cool sounds is not that easy. It's a challenge to combine the sounds of…
Small building blocks, big effects: Design your chain reaction
A small impulse can change the world. The flap of a butterfly's wings that triggers a hurricane on the other side of the world, or the cry of a mountain…
Condiment Diver
To paraphrase French philosopher René Descartes: "I sink, therefore I am." Changes in fluid pressure affect the buoyancy of a Cartesian diver made from a…
Coupled Resonant Pendulums
Take advantage of resonance. By taking advantage of resonance, you can cause two pendulums to swing in identical cycles.
Inverted Bottles
Watch the rise and fall of hot and cold fluids. Investigate convection by using food coloring and water at different temperatures.
Coriolis Carousel
And yet it moves! Astonishing phenomena are revealed when one earth day only lasts four seconds.
Acoustics
Aggregate states
Algorithms
Animals, plants, habitats
Atomic and quantum physics
Atomic structure
Automats
Biology
Buoyancy
Chaos
Characteristics of life
Chemical Reactions
Chemistry
Colors
Computer science
Cryptology
Currents
Data and information
Design elements
Earth sciences
Electricity
Electricity and energy
Electricity and magnetism
Elektromagnetismus
