The black color of pearls mainly comes from a natural substance called melanin. Yes, yes, it's the same molecule responsible for your tanned skin in...
Ramses II was a master of military strategy, capable of effectively leading his armies during memorable battles. His most famous confrontation, the Battle of Qadesh, pitted him...
Leonardo da Vinci had a very curious mind; he was interested in everything related to living beings, and he was particularly fascinated by the human...
Prehistoric caves offer a hyper-stable environment, with cool and constant temperatures generally around a dozen degrees, regardless of what happens outside. This climatic stability limits...
Even though it seems unlikely, it is possible to receive rain while the sky appears perfectly clear. This phenomenon is mainly explained by the presence...
The Earth's magnetic field typically forms a kind of protective shield that deflects charged particles from the Sun towards the polar regions. But sometimes, it...
The alcohol used as a disinfectant is usually ethanol or isopropyl alcohol. These are simple molecules made up primarily of carbon, hydrogen, and oxygen. What...
In the open sea, waves advance carrying energy, but the water itself moves little. When they reach the coast, the seabed rises, the depth decreases, and everything...
Rivers continuously transport particles of mud, sand, and small stones. When the current slows down, these materials settle to the bottom and accumulate: this is...
Soap is made of special molecules called surfactants. They have two completely opposite parts: one end that loves water (hydrophilic) and another that greatly prefers...
