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…

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…

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…

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…

Cartesian Diver

Sinks / Doesn’t Sink Sometimes called a “Cartesian diver,” this hollow body is partially filled with water and air. Depending on the pressure in the liquid,…

Chaotic fountain

«Chaotic (or Turbulent) Fountain» Direction of rotation: impossible to predict. The twelve containers of this fountain wheel are all the same size. They are…

Cloud Rings

A cloud maker like no other! The large basin is filled with water mist. Pressing the lid with a hole causes a mist column to rise in the center – up to seven…

Confused Sea

Master of the Winds. Play the god of winds – Aeolus would be thrilled. The half-sphere of plexiglass is filled with water. The strength of the rotating fan…

Dancing Water Drop

Leidenfrost Phenomenon. The water droplet lasts surprisingly long when it falls onto a scorching hot plate. It zips across the 280-degree surface, carried by…

Disappearing Glass Rods

Brought before your eyes: Optical density. Similar to how a drinking straw appears bent in a glass – here is another way to illustrate the phenomenon of…

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…

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…

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…

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…

Infalling Cloud

«Infalling Cloud» Resembling galactic spiral nebulae, whirling wisps endlessly plunge into the funnel. The water vapor, denser than the surrounding air, is…

Internal Waves

Wave Backwards Tilt the container – the heavier blue liquid flows downward. When it hits the container wall, it bounces back, creating a wave moving…

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…

Kalliroscope©

Magic and Beauty of Flowing Motion A vortex generator or rather a spectator par excellence. It allows for enchanting, seemingly chaotic, yet somehow regular…

Large drain vortex

Plug removed: This is how the bathtub empties. A water vortex is usually seen – if at all – from above. Like the one in the bathtub drain. Here, the water…

Liquid Dynamics

Chaotic eddies, turbulent swirls – and calm zones. Turbulences become visible. In the flow tank, they appear in the water. Very similar to what happens in a…

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…

Make the Invisible Visible

Convection made clear and observable. When water is heated, it expands. It becomes lighter and rises. In the less heated water, it creates swirls. The heat…

Meanderings

Meanders on glass. The glass plate is slightly tilted. Thin streams of water flow over it. What paths does the water take? The fastest path is a straight…

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…

Optical Lifting

More or less deep. Catching a fish with bare hands? A tricky task. Why? Where exactly is it swimming? Due to the refraction of light rays – when transitioning…

Seesaw pump

This exhibit is not accessible during the winter months. Using leverage and teamwork, you can move the hose here with your body weight so that water is pumped…

Settling Column

«Settling Column» Sand follows gravity. The same happens in this rotating glass tube. Mostly filled with water, the sand settles at the bottom. How can the…

Soap Bubble Basin

Loooong bubbles For kids big and small: form soap bubbles several meters long. Sometimes, a bubble stretches into a tube large enough for a child to fit…

Standing Water Disk

Collision of two water jets When two water jets collide, the water is deflected sideways. A thin water membrane, resembling a disk, forms. Surface tension…

Surface Tension

Clear and tangible. Astonishingly strong, the forces acting on the surface of the water. Slowly pull a metal ring out of the water: you can see how the…

The Tea Leaves Experiment / Tea Cup Experiment

«Everyday Physics» Experiment like Albert Einstein. In a paper about river meander formation, he wrote: «I begin with a small experiment that anyone can…

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…

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…

Turbulent Orb

Currents and their Shapes Ever spun a globe? Turned by a hand crank, it creates horizontal bands. What happens when the movement slows down? Chaotic, stormy…

Underwater Sandstorm

Underwater dunes At the seaside, in the shallow sandy shore, you can observe an underwater dune landscape sculpted by the tides. In the plexiglass sphere…

Unwanted Light Reflections

Unwanted reflections – a simple trick. Photographers are familiar with this: light reflections on glass or water surfaces – and they can be disruptive. A…

Vortex Action in Bottles

Race: Empty the Bottle A simple task: Who can empty their PET bottle faster? Turn the bottle – the rest happens on its own. But it can go even faster. How?…

Vortice Cylinder

Whirlpool in a Glass of Water Turn vigorously, please. Driven by the hand crank, the water in the cylinder starts spinning slowly, then faster and…

Water Bell

Like an elastic skin. Water flows upward against a flat surface. Diverted outward, it forms a bell shape. The shape of this bell depends on the pressure of…

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

Parabola in a natural phenomenon. As the rotational speed of this container increases, the water surface inside curves. The faster it rotates, the steeper 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…

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…

Action at -200°C – gases

We are constantly surrounded by gases – even if we cannot see them. We breathe them in and breathe them out, use some and produce others. Gases are fascinating…

Aquatic animals - organisms in the stream and pond

When talking about animals in streams and ponds, children usually think of fish and frogs. The fact that there are other animals in these habitats that are…

Do not try this @home – microwaves

In this day and age everything has to be done quickly, and the microwave undoubtedly helps save a lot of time! But how does this appliance actually work? Why…

Don't be so superficial! – Understand structures

How do plant leaves behave towards water? What does that have to do with surfaces and structures? And what can we learn about ourselves and our everyday life…

Happy hour on the ISS – water purification

Even astronauts on the International Space Station ISS enjoy drinking a Campari Soda from time to time – but where do they get the soda water from? There is no…

In murky waters - bioindication

How do we actually know how healthy a body of water is? Researchers use biological diversity as a criterion for water quality, among other things. Based on the…

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…

Having a Gas with Water

Use electricity to break water into its elemental components. Build a simple electrolysis device using a 9-volt battery wrapped in oil-based modeling clay,…

Inverted Bottles

Watch the rise and fall of hot and cold fluids. Investigate convection by using food coloring and water at different temperatures.

Air

Cooperation

Darstellen

Digital

Interferenz

Lichtstrahl

Model

Optical Illusions

Perspective

Riddle

Scientific method