May 29, 1953, a date to be marked with a white stone. Sir Edmund Hillary from New Zealand and Tenzing Norgay, a Nepalese Sherpa, were...
Stars begin their life as giant clouds of gas and dust. Under the effect of gravity, these clouds contract to form protostars. When the temperature...
Limestone is a sedimentary rock primarily composed of calcium carbonate. Due to its origin, it is often very porous. What is porosity? Like a sponge, it's the...
Pasteurization, a technique invented by Louis Pasteur in the 19th century, heats milk to precise temperatures to kill harmful bacteria without cooking the milk. First, the milk...
Heatwaves can cause major disruptions in power grids. High temperatures heat up the cables, which can reduce their efficiency in transporting electricity and even make...
The refraction of light is an essential optical phenomenon to consider when observing reflections on the surface of water. When light passes from one medium...
Tectonic plates are enormous pieces of the Earth's crust that constantly move. Beneath the ocean, these plates shift, move apart, or collide. When they move...
Beneath the Earth's crust, magma accumulates under pressure. When the pressure becomes too great, the magma seeks to rise to the surface. In some cases, it finds...
Mountains can have snow-capped peaks all year round due to recurrent atmospheric disturbances. These air movements are often accompanied by precipitation, particularly in the form...
The Earth is not exactly straight up and down. Its axis is tilted by about 23.5°. It's like holding a slightly tilted spinning top. This...
