A snow crystal begins to form from a tiny speck of dust or a particle present in the clouds. This tiny impurity acts as a...
Potatoes reproduce naturally without seeds, thanks to their tubers. Each tuber has several small indentations called eyes. These eyes contain buds ready to sprout. When...
When you swallow an ice cube, the cold touches the throat and cools the vocal cords. These vocal cords, which are actually two folds of...
Stars are mainly composed of hydrogen and helium, with a few other elements in small quantities, such as carbon, oxygen, or iron. This gaseous cocktail...
Long ago, people already believed that certain shades were the basis of all others. As early as Antiquity, Aristotle put forward the idea that there...
The constant heat and abundant humidity of rainforests provide an ideal climate year-round for a wide variety of species. These conditions ensure water and heat, facilitating the...
You see, when the wind blows over the water, it rubs and pushes on the surface. This friction creates small ripples that are barely visible: this is...
The time of Tutankhamun, around 1336-1327 BCE, corresponds to a particular period of ancient Egypt. He ascends to the throne when he is still just...
When you heat sugar, you liquefy its crystals. At that moment, the sugar molecules (sucrose) move freely all around. As they cool down, these molecules...
Rust is mainly composed of hydrated iron oxides, primarily that good old hydrated ferric oxide (Fe₂O₃·nH₂O). It is this compound that gives rust its typical...
