Irrigation was a crucial challenge for ancient civilizations in Persia due to the scarcity of precipitation and arid climate conditions. The Persians had to find...
The salt of the oceans primarily comes from land rocks. Over time, rain and rivers wear down these rocks, which contain many minerals, including salt, mainly in...
The air is mainly composed of gas molecules. The two most abundant gases in the Earth's atmosphere are nitrogen and oxygen, which together represent about...
Diamonds are crystals composed only of carbon. Each carbon atom in a diamond is bonded to four other carbon atoms by strong covalent bonds. This...
The Incas drank coca leaf juice at high altitudes to help fight against altitude sickness, also known as mountain sickness. Coca contains alkaloids, such as...
When a ball hits a hard surface, it bounces more because almost all the energy is directly returned to the ball, with less loss. In...
The presence of curcumin in turmeric is the main reason for its ability to intensely color foods. Curcumin is a natural pigment from the curcuminoid...
When a ball hits the ground, it temporarily deforms upon contact. This deformation directly depends on the elastic properties of the material it is made...
When we observe the color of a flame, we are actually looking at a chemical phenomenon related to combustion and how atoms react to heat. Atoms contain...
When an object is immersed in a liquid, two main forces act on it: the weight of the object and the Archimedes' buoyant force. The...
