Lying Water Disk

Water shapes sculptures.

When two water jets collide, the water is deflected sideways. A water membrane forms, creating a disc.

The pressure in the two pipes from which the jets emerge can be adjusted. These settings produce either a shower of droplets or a gracefully shaped water bell.

thema-Links

Currents

Mathematics

Mechanics

Physics

Shape and Space

Shapes

dokument-Links
10254 Stehende Wasserscheibe DEFI

Stehende Wasserscheibe (10254)

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11374 Haupt

"Delta Phi"

Optical phenomenon: caustics. The surface of this object resembles that of moving water. Illuminated from above, it reflects incoming light rays in various…

11798 Detail II

3D-Shadows

Shadows gain depth. Illuminated with red and green light, a tetrahedron casts a red and a green shadow on the screen. Viewed through glasses with red and…

11976 Phänomen

847 Compass needles

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

10228 Haupt

A riddle for intelligent and patient people

Puzzles for the sharp-minded and patient. Trickier than it seems: these eleven puzzles with strings, boards, and rings are challenging. One of them cannot be…

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…

10442 Haupt

A Table with loose Legs

Three, two, one – stable. How many supports do we need to stabilize a tabletop? Without screws, without glue, of course. Sharp-minded (and experimental)…

10006 Detail

Additive Color Mixing

Mixing light colors. Play with red, green, and blue light, and with their brightness. When overlapped and adjusted optimally, red, green, and blue produce…

11490 Haupt

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…

10515 Haupt

Aeolian Landscape

«Aeolian Landscapes» Wind shapes the landscape, just like water and ice do. As the wind sweeps over the sand surface, dune-like ripples form. When their…

10262 Haupt

Air Bubbles

Like dolphins: forming rings that rise. By pumping air into the glass tube filled with water, air bubbles rise. They ascend vertically. Often in a straight…

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 Air Fountain Haupt

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…

11478 Haupt

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…

10012 Haupt

All Triangels are the same

Central projection: Using various triangular shapes to cast congruent shadows onto a patterned wall with equilateral triangles.

10398 Detail

Angled Mirrors

Many polygons. Two mirrors positioned around an axis at various angles: a simple way to create shapes with many sides (polygons). At certain angles,…

10018 Haupt

Anti Gravity Mirror

Half a person becomes whole. Reflect the right half of the body, and there you have it: a complete person. It’s fascinating to watch them move. Can you manage…

10344 Haupt

Ascending magma

«Intrusion» Volcano in cross-section: This is what happens beneath its vent. What looks like magma is actually air-blown glass particles. They behave like a…

10030 Haupt

Aurora

A different kind of reflection. Colored filters in a mirror: why don’t we simply see their exact image? The surface of the mirror is rough. Restless,…

10239 1

Ball in a Bowl

Particle accelerator. Hula hoop meets spinning coins: balls orbit inside the sphere. Circular movements propel the two balls onto their orbits within the…

10240 Haupt

Ball in a Bowl

Shorter path = faster to the goal? A question that occupied the best mathematicians three hundred years ago. This competition compares two parallel tracks,…

10035 Detail

Ball on water-beam

Drawn to the jet. Table tennis balls float on a water fountain: how is that possible? The ball doesn’t stay exactly in the center of the jet. It rotates…

11364 1

Ball sorting machine

Playful tidying up. Yellow. Red. Blue. This machine sorts the small, medium, and large balls among Pierre Andrès' “Machines Singulières” in a playful manner.…

10037 Haupt

Banana

If you place a blue filter exactly on the yellow banana, the banana appears green - logical, isn't it? A larger blue filter that also covers the white…

10034 Haupt

Beam Bridge

The simplest form, but not the most stable. This bridge demonstrates the forces acting on a straight beam when it is loaded and supported only at its two…