Experiment decode messages with a red filter
Experiments

Decode messages with a red filter

Do you want to send secret messages to your friends, without anyone else being able to read it? Or even send a secret invitation to a lover? Play with light and color transmission to hide your messages. It’s your turn to play! […]

Artistic

Understanding optical illusions with René Magritte

Sometimes your brain shows you images that in reality don’t exist or are physically impossible. Images that present a different reality. These are called optical illusions. A principle that René Magritte, the famous Belgian painter, was able to exploit to create remarkable and world-famous paintings. […]

Belgian inventors

The phenakistiscope, the ancestor of cartoons

A very fast succession of images gives the impression of continuous movement, like in cartoons. It works thanks to a phenomenon called the retinal persistence. It was the Brussels native Joseph Plateau who discovered it and created the first phenakistiscope. […]

Women of science

Marie Curie, international radiancy

Marie Sklodowska-Curie, better known as Marie Curie, is the most famous scientist. Physicist and chemist of Polish origin, she is naturalized French. To date, she is the only woman to have received two Nobel prizes for her work on natural radioactivity. […]

Botany

The tree leaves are red

The leaves of trees are green in daylight. It is thanks to chlorophyll, an important molecule which is involved in photosynthesis to convert carbon dioxide into oxygen. But under black light, chlorophyll is red. A phenomenon linked to fluorescence. […]