When you blow into a balloon, you add compressed air to it, thereby increasing the internal pressure. This pressure pushes the latex walls to stretch. The more...
When you're in an empty room, your voice bounces off the walls, the ceiling, and the floor, in short, everywhere. The sounds hit the smooth, hard surfaces...
Temperature directly affects the speed of sound in air: the warmer it is, the faster the air molecules move, facilitating the transport of sound vibrations. The result?...
At the origin of the Morse Code, Samuel Morse and his assistant Alfred Vail had envisioned a system with numbers, but it quickly proved complicated...
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 mainly composed of silica, which is essentially melted sand. When it cools, this material forms a somewhat special molecular structure called amorphous structure, unlike crystals...
Plants produce scents to send a genuine chemical signal to insects and other pollinators like bees, butterflies, or bats. Specifically, these scents act like olfactory...
A flame needs heat, fuel (like the wax of a candle), and oxygen. A slight gust of wind can abruptly cool the flame by dispersing...
When an object is heated, it begins to radiate light. The hotter it is, the more the object emits high-energy light, transitioning from a deep...
Friction is the resistance you feel when two surfaces slide against each other. As smooth as they may seem to you, these surfaces are actually...
