The adhesives used in stickers are mainly composed of polymers. These large molecules with long, flexible chains provide a certain flexibility, allowing them to spread...
Coffee contains many chemical components such as caffeine, essential oils, acids (for example chlorogenic acid), proteins, as well as aromatic compounds that give coffee its...
The classic orange color of carrots mainly comes from beta-carotene, an orange pigment that gives a healthy glow and belongs to the family of carotenoids. But it...
Carrots were originally cultivated over 1000 years ago in what is now Afghanistan and Iran, and guess what: they were mainly purple or violet! The...
Tickling activates several regions of the brain, notably the somatosensory cortex, responsible for the perception of touch, and the anterior cingulate cortex, linked to emotional...
The rocks surrounding the caves are often excellent thermal insulators. They are very dense and thick, making them particularly poor conductors of heat, thus significantly...
The hardness of shells is not just for aesthetics. In mollusks, it primarily serves as a protective shield against predators, such as crabs or birds, that would...
From the ground, one usually sees only a rainbow arc because our view is blocked by the horizon, the ground, or buildings. On the other...
Some fish called electric fish have special organs capable of producing electric shocks. These biological structures, known as electric organs, are made up of specialized...
Beard growth depends heavily on hormones, particularly a derivative of testosterone called dihydrotestosterone (DHT). The more DHT you have, the more your facial hair is...
