All Triangels are the same
Central projection: Using various triangular shapes to cast congruent shadows onto a patterned wall with equilateral triangles.
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,…
Conic Sections with Laser
Ellipse, parabola, hyperbolic branch, or hyperbolic arm: Cross-sections of a plane through a geometric body. In this case, a cone. A laser beam circling the…
Do they fit in the Box?
Too big. Or is it? The cube fits into the glass cube. Clear enough. But the pyramid, the star-shaped object? Too big. Some objects appear larger than they…
Elliptical Mirror
This έλλειψις has only one goal. At one focus of this mirrored ellipse stands a rotating periscope. At the other focus, a colored cone. Looking at the…
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…
Möbius Cube Loop
Infinite puzzle. The Möbius strip, assembled from cubes. The building blocks are cubes and corner pieces. The faces of the cubes are painted on their…
Moebius Strip
Loop without end. Most things have two sides, but not everything. Among the exceptions is the Möbius strip. When we ride along it with a small train, we…
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…
Pythagoras’ Theorem - Easy to weigh up!
a² + b² = c² with stars and bunnies. The square of the hypotenuse and the squares of the legs can be weighed against each other, as they are made of identical…
Pythagoras’ Theorem - flows from this
a² + b² = c² The Pythagorean theorem describes a transformation of areas. In a right triangle, the sum of the squares of the two shorter sides equals the…
Quasi-Crystals
Golden rhombohedra. When correctly assembled, the various bodies (cubes stretched along their diagonals and cubes compressed along their diagonals) form a…
Square Puzzle and the Square to Triangle-Conversion
Disassemble and reassemble – discrete geometry. Square puzzle: Nine square tiles of different sizes. Arranged correctly, they fit into an almost-square…
Squaring the Circle
Everything always has two sides. From one side, it looks like a square; from the other, a circle. It’s all a matter of viewpoint and perspective. The…
The Circle’s the Limit!
A circle with many corners. Reflect green laser light to form a triangle, a quadrilateral, a pentagon, a … The more corners this polygon has, the more it…
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
