Light typically travels in a straight line, but when it passes from one medium to another different one (for example, from warm air to cold...
The story dates back to 1666, when Isaac Newton is said to have seen an apple fall from a tree in his family garden in...
When the air warms up, it becomes capable of holding more moisture. Why? Because warmer air provides water molecules with enough energy to more easily...
Chocolate is a rather unique solid, primarily composed of cocoa butter, which gives it that creamy texture. At ordinary room temperature, chocolate is usually hard...
In the completely dark abyssal depths, light becomes a vital tool for fish to ensure their survival. No sun here, it’s as dark as in...
Under our feet, trees form a true network of silent discussion, primarily thanks to symbiotic fungi called mycorrhizae. This system allows trees to exchange nutrients...
Everything around us is made up of molecules that are constantly moving due to heat. The hotter an object gets, the more its molecules become...
When it is going to rain, the wind can carry particular scents from afar. These aromas often come from plants, trees, and the soil itself. With the...
When a mass of humid air meets a mountain, it is forced to rise in altitude: this is called orographic lift. As it rises, the...
From the age of the first railway lines in the 19th century, English engineers were already using colored lights as signals. The red, a color...