Benham's Disk

A rotating black-and-white disk produces the illusion of color. Rotate this black-and-white pattern at the right speed, and the pattern appears to contain…

Blue Sky

Discover why the sky is blue and the sunset is red. When sunlight travels through the atmosphere, blue light scatters more than the other colors, leaving a…

Colors

Design elements

Function and construction

Light colors

Movement

Optics

Physics

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Technology and design

Penrose Parquet

Aperiodic pattern. In the aperiodic Penrose tiling, subpatterns repeat irregularly, even though shapes like hexagons or stars appear throughout. Using only…

Action at -200°C – gases

We are constantly surrounded by gases – even if we cannot see them. We breathe them in and breathe them out, use some and produce others. Gases are fascinating…

Aus Rot und Grün wird ....) Farbmischung mit Kreiseln - inklusiv

bunte Papierscheiben tanzen. Plötzlich sehen wir Farben, die vorher gar nicht da waren. Wie kommt das? Und können wir mit nur drei Farben unsere…

Cold, colder, shock freezing – ice cream in three minutes

Need an ice cream? We only use natural ingredients and freeze them with liquid nitrogen (minus 196 °C!) in no time to a fruity delicacy. Who can say no to a…

CSI Technorama – forensics

Regardless of whether it is a burglary, an accident or a felony, crime scene investigations always begin with securing the evidence. Are there fingerprints?…

Discoveries in daily life – experiments with candles

The phenomena that can be observed with a lighted candle engender a wide range of topics in natural sciences. The flame of a candle not only fascinates us, it…

Do not try this @home - Mikrowelle inklusiv

In unserer Zeit muss alles schnell gehen. Wie hilfreich ist da die Mikrowelle! Aber wie funktioniert dieses Gerät eigentlich? Und warum kann man darin keine…

Do not try this @home – microwaves

In this day and age everything has to be done quickly, and the microwave undoubtedly helps save a lot of time! But how does this appliance actually work? Why…

Entdeckung im Alltäglichen - Experimente mit Kerzen - inklusiv

Die Phänomene, die sich bei einer brennenden Kerze beobachten lassen, führen zu vielen verschiedenen Themen in den Naturwissenschaften. Kerzen lassen uns…

Erratic nature – excitation of atoms

Physics lessons in mainstream school education were extremely limited during the 20th century – especially when it came to expensive and complex experiments.…

Have you ever seen an atom? – Atomic dimensions

Physics lessons in mainstream school education were extremely limited during the 20th century – especially when it came to expensive and complex experiments.…

Kalt, kälter, schockfrosten - inklusiv

Ein Glace gefällig? Wir verwenden nur natürliche Zutaten und frosten diese mit flüssigem Stickstoff (minus 196 °C!) in Nullkommanix zu einer fruchtigen…

Lighting effects in nature and the home – fluorescence

How can you light up fluorescent objects? Where do lighting effects occur? You extract fluorescent dyes from everyday objects like pudding mixes or laundry…

Mission possible - Roboter bauen

Euer Team aus Entdeckungsfreudigen und Wissenschaftsbegeisterten hat einen mysteriösen Planeten entdeckt. Eure Mission? Das Geheimnis lüften, ob hier Leben…

Radiant insights – radioactivity

CERN in Geneva, the catastrophe in Fukushima, new radiotherapies for treating cancer – atomic and nuclear physics are constantly discovering new findings that…

Radioactivity in everyday life – natural radiation

Radioactivity is not only in nuclear power plants, but also in common foods like mushrooms and dietary salt, in normal fertilizer for roses and, naturally,…

Small building blocks, big effects: Design your chain reaction

A small impulse can change the world. The flap of a butterfly's wings that triggers a hurricane on the other side of the world, or the cry of a mountain…

Tracking atoms – composition of matter

Physics lessons in mainstream school education were extremely limited during the 20th century – especially when it came to expensive and complex experiments.…