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 colour. It is quite different with light colours: The more you add, the brighter the colour becomes. You can "make" white light by mixing the three basic colours of light red, green and blue and adjusting their brightness accordingly.

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10006 Additive Farbmischung DEFI

Additive Farbmischung (10006)

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Biology

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Light colors

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Optics

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Physics

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Seeing

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Senses

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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…

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…

11490 Haupt

Adhesive Air

Air is blown through a large funnel. Stand in front of it, but you will hardly feel it. If you now push the funnel slightly backwards, you will suddenly feel…

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…

10297 Haupt

After Image

Not seeing nothing, but seeing nothing! A strong flash of light triggers a photochemical process on our retina. However, this process lasts longer than the…

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…

11634 Haupt

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…

11484 1

Air Fountain

This exhibit is not accessible during the winter months. by Daniel Wurtzel A large kinetic sculpture with lots of air. Air flows from the side of a round,…

11478 Haupt

Air lift

A hole in the middle of the table, a tube open at both ends in the hole and a fan in front of it. In this tube there is a free-moving ball that is secured…

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.

11762 Detail

Ambiguous Figures

The cubes, called "Necker cubes", belong to the ambiguously perceptible objects.We can see the cube differently in the same physical position - front and back…

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…

10018 Haupt

Anti Gravity Mirror

This mirror construction turns a "half-observer" back into a seemingly complete one, makes one float in space or makes one grow additional pairs of arms or…

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…

10344 Haupt

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…

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!