The resistance that one surface or object encounters when moving over another.a lubrication system which reduces friction’ It's originated from mid 16th century (denoting chafing...
A black hole has a boundary, known as the event horizon. This is the point where the escape velocity is more than the speed of light. The gravity is just strong enough to prevent even light from...
Astronomers face an embarrassing conundrum:
They don’t know what 95% of the universe is made of. Atoms, which form everything we see around us, only account for a measly 5%. Over the past 80 years it...
Your body has many different kinds of cells. Though they might look different under a microscope, most cells have chemical and structural features in common. In humans, there are about 200 different...
Dark chocolate is loaded with nutrients that can positively affect your health.Made from the seed of the cocoa tree, it is one of the best sources of antioxidants on the planet.Studies show that dark...
Apples are among the most popular types of fruit in the world.They are the fruit of the apple tree (Malus domestica), originally from Central Asia, and are grown all over the world.Apples are high...
Lysosomes: They contain membrane-bound sacs with powerful digestive enzymes
(enzymes are made by RER) to digest the worn-out cell organelles. When the cell
gets damaged, lysosomes may burst and the...
What is friction?
The resistance that one surface or object encounters when moving over another.a lubrication system which reduces friction’ It's or...
