Bouncing (Steel) Ball
Ping-ping, not ping-pong. When a ping-pong ball drops onto the table, its sound is unmistakable. A tapping noise that grows quicker and quicker. This happens…
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…
Catenary Arch
Building solid – like the Romans. An arch as a delicate structure: reconstructing what the Romans perfected. Understanding what gives their elegant arches…
Chance Happenings
Capturing randomness – with dice. Four faces of these dice are white. The other two faces show a red circle. After each roll, the dice with the red circle…
Drawing on the Move
Elegant circles, spirals, and ellipses. Above a disc with variable rotational speed lies a ruler. If the pen is held still along the ruler, circles are drawn.…
Gravitational model or Energy Well
The potential well. Orbiting the gravitational center: once launched, the ball takes wide rounds. For minutes, it gradually accelerates. Its circles become…
Hyperbolic Slot
Straight rod passes through a curved slot. Impossible, that’s the first thought. But the experiment proves otherwise. The straight rod moves without contact…
I am a function
Three steps forward, one step back. The point on the screen moves along. The curve displayed on the screen is the target. Goal: move closer, move away, and…
Jumping Water
Fascinating Water Arches. Is solid water flying through the air? Beautiful: sometimes, continuous arches form, almost like tent poles, but made of water.…
Loose Stone Bridge
Brilliantly strong and simple. Loose stones, assembled in the correct order, form a bridge capable of bearing weight. Even in a small format, it can support…
Machine with Concrete / Machine set in Stone
The Eternity Machine. Twelve worm gear mechanisms for eternity! An impressive example of mathematics illustrated mechanically. With each successive gear, the…
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…
Non-round Wheels
And yet they roll! With the right rolling surface, even a square rolls perfectly round. This applies to a pentagon as well as to any other regular…
Pendulum Wave
Chaos in perfect alignment. Eleven pendulums of different lengths. Once released, they swing in disarray. And yet, every ten seconds, they return to perfect…
Population Growth
How fast – and where? Current population figures displayed on a world map, by continent and overall. For each continent, the counters show how many people…
Th shortest Way is not always the quickest
Marble race. Three tracks with the same height difference and the same horizontal distance, but different curves: the straight path is the shortest,…
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…
Weird Wheels
Not round, but it rolls round. These discs aren’t round, but when they roll, their axis stays at the same height: solids of constant width. Disc-shaped bodies…
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
