When a balloon suddenly bursts, it is generally due to internal overpressure resulting from an increase in air pressure inside the balloon. This increased pressure...
When a sound is emitted in an empty room, a large part of the sound energy is absorbed by the surfaces present. Sound waves propagate...
Air temperature has a significant influence on the propagation of sound. Generally, sound travels better in warm air than in cold air. This is because...
The Morse Code was invented by Samuel Morse, an American inventor, and Alfred Vail, an engineer, in the 1830s and 1840s. Originally, this code was...
Steel is an alloy mainly composed of iron and carbon, but can also contain other elements such as nickel, chromium, manganese, among others. Its crystalline...
Glass is a widely used material in many fields because of its transparency. This transparency is due to the molecular structure of glass, which allows...
Plants emit odors for various biological reasons. One of the main reasons is to attract pollinators such as insects, birds, and bats. The scents emitted...
A strong wind can extinguish a flame by causing a faster cooling of the fuel and by pushing away the hot air needed for combustion. When the...
The bright color of a thermal source is directly related to its temperature. Indeed, according to the principles of thermodynamics, a hot object emits light...
Friction is a force that opposes the relative motion of two surfaces in contact. This phenomenon results from the interaction between the asperities of the...
