The orange-red color of the twilight is often attributed to the presence of atmospheric dust suspended in the air. These particles, coming from various sources...
If fireworks shine in colors, it's primarily a story of chemistry. The principle is simple: when burned, certain substances called metallic salts release light in...
The ceiling is usually painted in white for several practical and aesthetic reasons. This color is chosen because it offers a number of advantages in...
Marine sponges, organisms belonging to the animal kingdom but characterized by the absence of tissues and differentiated organs, possess interesting medicinal properties. These properties are...
An igloo is built by compacting snow to form blocks of ice. This snow pack serves as an excellent thermal insulator. Indeed, the porous structure...
In a typical battery, there are two essential parts: the positive terminal (called the cathode) and the negative terminal (called the anode). These terminals, usually...
Objects that can be attracted by a magnet have in common a property called magnetism. This property is due to the presence of certain elements...
Dolphins' eyes are particularly adapted to underwater life. Their structure differs from that of land animals' eyes. Dolphins have globular eyes that are quite large...
Plankton is like the basic snack of the oceans. These tiny microorganisms float all over the water. They serve as the main meal for a...
The pigments present in paint are substances that absorb certain colors of light while reflecting others. When white light hits them, pigments absorb certain wavelengths...
