All Triangels are the same
Central projection: Using various triangular shapes to cast congruent shadows onto a patterned wall with equilateral triangles.
Coloured Shadows
Three lights for shadows in six colors. Red. Green. Blue. Three lamps illuminate the white background. On it, we see six shadows of different colors: a…
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…
Touching the Knife (or not)
Ouch! A Swiss army knife floats freely in the air. Appearance and reality: no one gets cut by this knife. Reaching for it ends in thin air. What we see is…
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