Stations-ID: A009

?? Work in Progress. English Translation coming soon!

Stations-ID: A006

?? English instruction:

A round track – But is the chair driving on it in it’s initial position after one round?

• How many rails is the track made up of?

• In what position would you arrive after one round, if the chair could not turn?

The stainless steel construction has a different angle in every segment, which could not be calculated before the build. Therefore, a wooden model had to be built to scale to discern the correct measurements required.

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Stations-ID: D091

?? English instruction:

Two people sit across from each other in the carousel, tossing a ball back and forth between them.

The rest of the group sets the carousel in motion. Try tossing the ball back and forth again.

• Where does the ball fly when the carousel is turning?

• Where does the ball fly if the carousel is turning in the opposite direction?

• Which flight path would an observer see, looking at the carousel from the top?

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Stations-ID: D069

?? English instruction:

Spin the barrel.

Pluck one of the strings and observe it.

What do you notice when the barrel spins slower or quicker?

• Pluck a string. What can you see? What can you hear?

• What do you see when the barrel is spinning?

• What happens when the barrel is spinning slower?

• What’s the difference between the strings?

The strobe effect has many technical appliances. On good record players, the strobe effect is used to discern and adjust the rotation speed of the turntable. It is also used to discern the revolution rate of rotating machines or discover faults in rotating parts.

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Stations-ID: D081

?? English instruction:

Sit on the chair and turn.

Spread your arms or pull them in close to your body.

To amplify the effect, use the weights.

• What happens when you pull your arms in close while the chair is rotating?

• What happens when you spread them?

• Ask a partner to sit in the chair and hold the weights.

Set the chair in motion. Repeat the experiment, this time your partner spreads his arms.

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Stations-ID: D053

Stations-ID: D040

?? English instruction:

What patterns are created, when the disc is spinning and you draw on it? Can you draw straight lines?

• Before you start, think about what the pattern could look like.

• While the disk is spinning, move the chalk from the center to the edge of the disk evenly.

• While the disk is spinning, draw small circles.

• Try to draw a straight line on the spinning disk.

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Stations-ID: D064

?? English instruction:

The ring is spun on the dish. How long will it spin?

• How does the ring move?
• Which different movements can you observe?
• What do you hear?
• What do you think how heavy the ring is?

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Stations-ID: D063

?? English instruction:

Plane mirrors and double and triple-sided corner reflectors are mounted on a rotating wheel.

Turn the winch. What happens to your reflection?

• How many reflections can you see?

• Count the rotations of the mirrors, then count the rotations of your reflections.

• In what position must the two sided corner reflector stand in order for your reflection to be upside down?

In the 19th century, the French physicist Jean Bernard Léon Foucault (1819-1868) developed a method to measure the speed of light. Rays of light where reflected between a rotating mirror and a stationary mirror. Focault determined the speed of light by measuring the displacement between the starting point of the rays of light and their subsequent reflection. He measured the speed of light to be 298.000 km/s, rather close to the speed of light in vacuum, 299.792,458 km/s.

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Stations-ID: D057
?? English instruction:

Plane mirrors and double and triple-sided corner reflectors are mounted on a rotating wheel.

Turn the winch. What happens to your reflection?

• How many reflections can you see?
• Count the rotations of the mirrors, then count the rotations of your reflections.
• In what position must the two sided corner reflector stand in order for your reflection to be upside down?

In the 19th century, the French physicist Jean Bernard Léon Foucault (1819-1868) developed a method to measure the speed of light. Rays of light where reflected between a rotating mirror and a stationary mirror. Focault determined the speed of light by measuring the displacement between the starting point of the rays of light and their subsequent reflection. He measured the speed of light to be 298.000 km/s, rather close to the speed of light in vacuum, 299.792,458 km/s.

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Stations-ID: D043

?? English instruction:

This special kaleidoscope consists of a cube with mirrors on it’s inner walls.

Look into it from above – which symmetries can you see?

What happens to the different reflections when you rotate the cube slowly?

• How many reflections can you see?

• Look at the planes, edges and corners of the cube.

• Which reflections are rotating and which are not?

• Put your head inside the rotating cube.

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Stations-ID: D042