Solar flares, what are they basically? They are violent explosions that occur on the surface of the Sun, abruptly releasing tons of energy in the...
When certain fruits like apples or pears are cut, the plant cells are damaged. This degradation releases an enzyme called polyphenol oxidase (or PPO). This...
A balloon is generally made of a flexible material, often latex or mylar. Latex is an elastic material derived from natural rubber, highly valued for...
In cold weather, the lithium-ion batteries in our devices struggle to deliver their usual performance. Why? Because the cold slows down the chemical reactions inside...
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...
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...
The corn kernel is like a natural capsule composed mainly of three parts: a very hard outer shell called the pericarp, a starchy nutrient tissue...
Lift is the upward aerodynamic force that keeps an airplane in the air. It is mainly generated by the wings of the airplane in flight. This phenomenon...
A poorly chosen exposure time is often the primary cause of a blurry image: if it's too slow, it lets in a lot of light...
Metals are composed of atoms that form a kind of regular grid (known as a crystal lattice). These atoms have electrons that they share freely...
