Fire appears when combustion occurs: it is a chemical reaction that rapidly releases a lot of energy. Generally, this happens when a carbon-rich fuel, such...
Bees primarily dance to quickly indicate the exact location of food to their comrades. This dance, called the waggle dance or tremble dance, provides information...
The green color of grass primarily comes from a very specific molecule: chlorophyll. It is a pigment capable of capturing light energy. Chlorophyll mainly absorbs...
Soap is composed of molecules referred to as surfactants, because they are attracted to both water and fats. Each of these molecules has two parts: a hydrophilic...
Marine bioluminescence is an astonishing ability possessed by certain marine organisms to emit their own light in complete darkness. This light results from a natural...
The water molecule (H₂O) can be visualized in a V shape with the oxygen atom in the middle and a hydrogen atom at each end. This bent...
Einstein showed in 1905 that the laws of physics are identical for any observer in uniform rectilinear motion: this is the principle of special relativity. This concept...
Bananas naturally emit a gas called ethylene, recognized as a true ripening hormone in fruits. When bananas begin to ripen, the amount of ethylene they...
Leaves contain different types of pigments, mainly chlorophyll, carotenoids, and anthocyanins. Chlorophyll gives leaves their green color and is responsible for capturing light for photosynthesis. Carotenoids, on...
Pepper owes its spicy flavor primarily to a molecule called piperine. It belongs to the family of alkaloids, which includes several plant substances responsible for...
