The speed of glaciers depends quite a bit on what is beneath the ice. When a glacier slides over smooth rock or wet mud, it...
Inside a thundercloud, ice crystals and water droplets frequently collide. As a result, they exchange electrical charges, somewhat like a balloon rubbed against a wool...
At night, while we sleep peacefully, the activity of nocturnal insects and other pollinators is in full swing. Moths, a kind of small night butterfly, bats, and...
The Moon takes about 27.3 days to complete one full orbit around the Earth: this is called the sidereal revolution. But be careful, to return...
The skin of frogs is very thin, soft, and especially equipped with numerous small blood vessels just beneath its surface. It has an outer layer, the epidermis,...
Lichen is a winning team composed of a fungus and an alga or a cyanobacterium. In this duo, each does what it does best. The...
Our planet is not a perfect sphere: it is more like a slightly squashed ball at the poles. This phenomenon, called flattening, comes from the...
Tempered glass is ordinary glass subjected to a specific thermal treatment. First, the glass is heated to a very high temperature (around 650 to 700°C)...
Arctic glaciers are very sensitive to changes in the climate. Even a tiny warming is enough to trigger accelerated melting. These enormous masses of ice...
When you pour a beer, you violently mix carbon dioxide (CO₂) with the beer, which had been quietly waiting in the pressurized bottle. The CO₂, suddenly released,...
