Stalactites form drop by drop, very slowly, through a process called crystallization. When water droplets loaded with calcium carbonate reach the ceiling of a cave, they begin...
Nocturnal flowers often possess very specific pigments, generally flavonoids and certain types of anthocyanins, which give pale, whitish, or very light cream shades. These pigments...
During a snowfall, the propagation of sounds changes because the snowflakes disturb the sound waves. Each flake, very light with a porous structure, acts a...
Quicksand is primarily a mixture of water and sand, which means its overall density often exceeds that of the human body. Our body, mainly composed...
Oil is lighter than vinegar: its density is lower. In simple terms, for the same volume, oil weighs less. This is mainly due to the...
The colors of the auroras largely depend on the composition of the gases in our atmosphere. For example, oxygen at high altitudes emits a nice...
Plant latex is a type of thick sap produced by certain plants. It circulates in special channels called laticifers, located in different parts such as...
Jellyfish gather primarily because they follow their reproductive cycles. For some species, being together greatly facilitates the encounter with reproductive partners, leading to better spawning. Another key...
Many volcanoes surprise due to their very particular internal structure. These volcanoes generally have narrow conduits or are blocked by solid rocks or cooled magma: this acts...
Basil owes its powerful scent to chemical compounds called essential oils. These oils are stored in tiny glands located mainly on the leaves, and when...
