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…
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)…
Crooked Tiles
Cafe Wall Illusion: the tile deception. These parallel lines really seem tilted! The black and white squares can be arranged in stripes or offset into a…
Distorted Room (Ames Room)
Little one grows tall. An absolutely ordinary room, at least when viewed through the peephole. But wait, the little brother grows taller than the big sister…
Distorting faces
by Niclas Roy A whole row of screens each shows the viewer's face. If you hold a magnet to the screen, the electrons in it are deflected, distorting the image.
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.…
Electromagnetic puppet theatre
Electricity moves magnets. Three stations each contain four coils whose frequency and phase shift can be adjusted. Figures with magnetic legs can be placed on…
Feeling Eyes
Sometimes round, sometimes oval. With eyes closed and explored by touch, the bowl feels oval. Viewed through the lens and touched, it appears – depending on…
Generator track
A magnet generates electric current. A track with a magnetic toy railway on it runs through a large coil. When the toy track is moved in the coil, a current…
High-voltage slide
Triboelectricity. A slide and its platform stand on several large insulators. Anyone who slides down is electrostatically charged. If you then touch the…
Hot - Cold
Can something be hot and cold at the same time? The copper coil is warm on one side and cold on the other. Our temperature receptors detect this immediately…
Inclined Chess
Big and bulky for some – small and slim for others. A completely messed-up chess set, right? Agreed? Almost. The chessboard is perfectly level. The pieces…
Leonardo’s Bridge
Clever: How Leonardo da Vinci builds a lightweight bridge. No screws, no nails, no ropes; just a few planks. From these, he creates a sturdy bridge. An idea…
Lights ON
Seven lights, seven buttons. The goal: make all seven lights turn on – or none at all. Pressing a button affects three lights and causes a state change: from…
Luminous sculptures
Three dimensional circuits. Two contacts are attached to each of three stations, which can be connected with the help of magnetic rods and iron balls. The…
Magnetic balance
Floating through diamagnetism. Underneath a large ring magnet is a transparent box with a small magnetic cube and a base made of graphite. At exactly the…
Penrose Parquet
Aperiodic pattern. In the aperiodic Penrose tiling, subpatterns repeat irregularly, even though shapes like hexagons or stars appear throughout. Using only…
Plasma columns
Influence the clouds of mist. A red glowing plasma is generated in two glass columns by an electric field. If you touch the column, you change the electric…
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…
Reversed Perspective
Art gallery reveals contradictions. This three-dimensional spatial sculpture completely overturns our visual habits. It flips the space by presenting elements…
Rotating Tunnel
Hold on! Walking on solid ground, like on a swaying ship. Standing stable, walking upright on flat ground: nothing could be easier. Or is it? The rotating…
Smell Habituation
Even strong scents fade eventually. In a mixture of a strong and a weak scent, we only smell the strong one – the dominant scent. If we smell the strong scent…
Soft landing
Confidence in Eddy Currents. Here you can let yourself fall backwards and rely on the braking effect of eddy current. Two strong magnets are attached to a…
Sorting machine
Separation using Eddy Currents. The sorting machine uses magnets to sort different coins according to their conductivity. To do this, the magnets are moved…
Template Code
Untangling the letter jumble. Perfectly possible, with the right template. Using it in reverse, you can encrypt a 36-letter message, almost impossible for…
Tetrahedron Puzzle I
Three-sided pyramid, puzzle with two pieces. Spatial imagination is required: when correctly combined, these two equally sized bodies form a…
Tetrahedron Puzzle II
Three-sided pyramid, puzzle with four pieces. Spatial imagination is required: when correctly combined, these four equally sized bodies form a…
Tetrahedron Puzzle III
This puzzle game is mainly about spatial imagination. Four (2 equal) bodies made of spheres are to be assembled to form a tetrahedron.
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,…
Wide of the Mark
Throwing a ball through a ring: easy. Even with these glasses? The glasses shift the field of vision. The ball is now likely to miss its target. By…
Wolf, Goat and Cabbage
Keep calm, ferryman! Task: transport cabbage, goat, and wolf to the other side of the river. Tricky, since only one other passenger fits on the ferry. The…
Accessibile for people with cognitive disability
Accessible for people in wheelchair
Accessible for people with hearing disability
Accessible for people with visual disability
Audiodeskription
Leichte Sprache
Little fine motor skills required
Symbole
