"Delta Phi"
Optical phenomenon: caustics. The surface of this object resembles that of moving water. Illuminated from above, it reflects incoming light rays in various…
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,…
Anti Gravity Mirror
Half a person becomes whole. Reflect the right half of the body, and there you have it: a complete person. It’s fascinating to watch them move. Can you manage…
Christmas Balls
Round shapes, angular gaps. The spheres are indeed round, despite the triangular gaps between them. Can this really be? If a sphere is missing in the…
Corner Reflector
Cat’s eye = reflector. In the headlight’s beam, it lights up, clearly visible to the driver: the “cat’s eye.” The pedestrian next to it barely notices it,…
Critical Angle
When does total reflection begin? Light usually travels in a straight line. What happens when it encounters a boundary surface? Depending on the angle of…
Depth Enhancer
Perceiving distances differently. The Tiefenverstärker (depth amplifier) artificially increases the distance between our eyes—from an average of 65 mm (in…
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…
Glass Bead Rainbow
Refracting light, reflecting light. Tiny glass beads illuminated by a flashlight: a rainbow appears! They act like prisms, these glass beads. They split the…
Grease Spot Photometer
A spot leading to enlightening insights. What does the grease spot on the paper between the two lamps tell us? The grease-spot photometer was originally…
Hot Spot
Your reflection is really hot! A matter of opinion, obviously. And a matter of perspective. One thing is certain: everyone can find a hot spot here. The…
Light Island
Reflex – simply play with light. Direct light, mix light colors, experiment with the transparency of filters and materials, and explore refraction: freely…
Look into Infinity
How many of me are there? One mirror reflects another. Your image is reflected so many times that counting them all becomes simply impossible. Almost a…
Real-Virtual, Virtual-Real
Image and/or reflection. In a bulging glass vessel illuminated from below, a small object hangs. Or are there two? The glass body behaves like a concave…
Sky Window
Perfectly Round Oval. A hole in the landscape. It reflects the sky. From a distance, this mirror appears to be perfectly circular. But upon closer…
Soap Film Painting
A film with a bulge. Beautiful, the colors that appear when the wide, tall soap film forms! Its colorful patterns are constantly changing. They clearly…
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…
Three-dimensional Projection
3D – the cinema is made by the brain. From red and green shadows, plastic, three-dimensional objects emerge. Viewed through glasses with red and green…
Total Internal Reflection
Trapped light. A tip for the dear citizens of Schilda: here’s how you could have brought light into the windowless town hall! The method is based on a…
Touch the Spring!
Or maybe not? It appears incredibly real: a three-dimensional image – here a feather – reflected by a spherical mirror. Impossible to touch.
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…
Umkehr-Spiegel - Damen
Wait a Moment... Above the large sink mirror, a horizontal mirror is mounted at a right angle. Looking upward reveals an unusual reflection: the eyes seem to…
Umkehr-Spiegel - Herren
Unendliche Spiegelungen - Damen
Conduct Your Business Mindfully. In the restroom, a band of mirrors angled differently is mounted at seat height all around. You see yourself infinitely…
Unendliche Spiegelungen - Herren
Unwanted Light Reflections
Unwanted reflections – a simple trick. Photographers are familiar with this: light reflections on glass or water surfaces – and they can be disruptive. A…
You & Me
Faces merging. Depending on the lighting, viewed through the semi-transparent mirror, two faces become one. Does the other person’s face dominate? Then the…
Anti-Gravity Mirror
Learn how to fly with this neat mirror trick. A reflection of your right side can appear to be your left side. Try this activity and you'll appear to perform…
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
