Oprah Winfrey — Oprah Gail Winfrey (born January 29, 1954) is an American media proprietor, talk show host, actress, producer, and philanthropist. Winfrey is best known for her multi-award-winning talk show The Oprah Winfrey Show, which was the highest-rated program of its kind in history and was nationally syndicated from 1986 to 2011. Dubbed the “Queen of All Media”, she …

There are many special nerve endings in our fingertips that let us touch and feel things-even very small things. As good as our fingertips are at feeling things, they are not the best touchers and feelers in our body. Can you guess what part of your body is the best “toucher” and “feeler”? It’s the tip of your tongue!

We turn white when we are frightened because the blood in our cheeks in diverted to do a more urgent job. At the same time our hearts begin to beat much faster, and we breathe more quickly. When we sit still, our hearts beat at about 70 or 80 times a minute, pumping the blood through our bodies. The blood …

Some scientist consider that sleep is an instinct, a basic need for the body and mind to relax and to escape from the responses needed while awake. We become tired in body and mind if we do not sleep, and scientists have proved that when we do sleep the electrical activity of the brain slows down, although it may be …

When people say that they see a man’s face on the Moon, they are actually seeing the uneven surface on the Moon. There are deep holes, called craters, and hills on the Moon’s surface. There is no man on the Moon. That the Moon is much smaller than the stars and even the earth. In fact, four moons put together …

Very simply because our bodies are about two thirds water. The human body contains about eleven gallons of water, and as we get rid of our body water by sweating and other means, we must replace it. The water in our bodies is not the same as ordinary drinking water, of course. There are many chemicals in it, which the …

First of all, what are vitamins? They are substances which are necessary to life, and they are produced by various plants and animals. Everybody must have these vitamins in their diet regularly to enable the body cells to grow and repair themselves. Although scientists have long and complicated names for vitamins, we know them best by their simple letters, A, …

Onora O’Neill — Onora Sylvia O’Neill, Baroness O’Neill of Bengarve CH CBE FBA FRS (born 23 August 1941) is a philosopher and a crossbench member of the House of Lords. Onora O’Neill, studied philosophy, psychology and physiology at Oxford University, and pursued a doctorate at Harvard. She is a former professor of philosophy and served as the Principal of Newnham College, …

We already know that the body contains a lot of water – in fact over 70% of the body is composed of water. But this isn’t pure water. It is a salt solution, and as we lose a certain amount of our body fluid every day, we also lose salt, which we must replace. We don’t get salt from vegetables …

You’ve been playing in the pool for almost an hour now, practicing your best underwater somersaults. Now it’s time to get out, and as you look at your hands, it’s . . . it’s . . . it’s the attack of the wrinkly fingered monster! Don’t get frightened or run for cover under your towel yet. After spending lots of …