Sandpaper is essentially composed of a flexible backing (thick paper, durable cloth, or synthetic material) covered with a layer of abrasive grains. These grains typically...
Wireless charging works through the principle of electromagnetic induction, discovered by Michael Faraday. Basically, it's simple: a coil connected to a power source creates a...
Plant bioluminescence is a natural phenomenon where certain plants emit visible light at night. The source of this astonishing property is usually a molecule called...
When you pedal, the air trapped in your tire acts as a shock absorber. It absorbs vibrations caused by imperfections in the ground and protects...
Coffee is usually prepared by passing almost boiling water (around 90 to 95°C) through ground coffee. With such a starting temperature, it makes sense that...
A flame needs oxygen to burn properly, but be careful, too much air at once and it's all over! A strong wind brings a lot...
The grooves on pétanque balls mainly focus on grip, allowing for a good hold to prevent them from slipping between the fingers at the moment...
England had really bet on its luck in terms of resources. A huge amount of coal, very close to the surface and easy to extract: it was...
Electromagnetism is the study of the link between electricity and magnetism, two closely connected phenomena. When an electric current passes through a wire, it creates...
Contrary to what is sometimes believed, ice is not inherently slippery on its own: it is mainly due to a very thin layer of liquid...
