Interesting facts about Eye

1.    We should never put anything in or near our eyes, unless we have a reason to use eye drops. We would only do that if our doctor or parent told us to use them.
2.    If the lens in our eye doesn’t work quite right, we can get glasses to help us see. Glasses have lenses in them that work with our eye’s own lens to help us see better.
3.    Just behind the pupil is a lens. It is round and flat. It is thicker toward the middle.
4.    Over the front of our eye is a clear covering called the “conjunctiva.”
5.    Blinking helps to wash tears over our eyeballs. That keeps them clean and moist. Also, if something is about to hit our eye, we will blink automatically.
6.    Some people start to sneeze if they are exposed to sunlight or have a light shined into their eye.
7.    The highest recorded speed of a sneeze is 165 km per hour.
8.    Our eyes have many parts. The black part on the front of our eye is called the “pupil.” It is really a little hole that opens into the back part of our eyes.
9.    Our body has some natural protection for our eyes. Our eyelashes help to keep dirt out of our eyes. Our eyebrows are made to keep sweat from running into our eyes.
10.    The most common injury caused by cosmetics is to the eye by a mascara wand.
11.    It is impossible to sneeze with your eyes open.
12.    Around the pupil is a colored muscle called the “iris.” Our eyes may be BLUE, BROWN, GREEN, GRAY OR BLACK, because that is the color of the iris.
13.    Our eyes are very important to us, and we must protect them. We don’t want dirt, sand, splinters or even fingers to get in our eyes.
14.    The reason why your nose gets runny when you are crying is because the tears from the eyes drain into the nose.
15.    The space between your eyebrows is called the Glabella.

16.    The white part of our eye is called the “sclera.” At the front, the sclera becomes clear and is called the “cornea.”
17.    We don’t want our eyes to get scratched or poked. That could damage our sight!
18.    Babies’ eyes do not produce tears until the baby is approximately six to eight weeks old.
19.    Inside our eye, at the back, is a part called the “retina.” On the retina are cells called “rods” and “cones.” These rods and cones help us to see colors and light.
20.    Your eyes blinks over 10,000,000 times a year!
21.    The study of the iris of the eye is called iridology.
22.    The shark cornea has been used in eye surgery, since its cornea is similar to a human cornea.
23.    The number one cause of blindness in adults in the United States is diabetes.
24.    The eyeball of a human weighs approximately 28 grams.
25.    The eye of a human can distinguish 500 shades of the gray.
26.    The cornea is the only living tissue in the human body that does not contain any blood vessels.
27.    The conjunctiva is a membrane that covers the human eye.
28.    Sailors once thought that wearing a gold earring would improve their eyesight.
29.    Research has indicated that a tie that is on too tight cam increase the risk of glaucoma in men.
30.    People generally read 25% slower from a computer screen compared to paper.
31.    Men are able to read fine print better than women can.
32.    In the United States, approximately 25,000 eye injuries occur that result in the person becoming totally blind.
33.    All babies are colour blind when they are born.
34.    A human eyeball weighs an ounce.

Why do baby boys wear blue and girls wear pink?

The custom of dressing baby boys in blue clothes began around 1400. Blue was the colour of the sky and therefore Heaven, so it was believed that the colour warded off evil spirits. Male children were considered a greater blessing than females, so it was assumed that demons had no interest in girls.

It was another hundred years before girls were given red as a colour, which was later softened to pink.

Why do we call the perfect world “Utopia”?

The word Utopia was created by the English philosopher Sir Thomas More in 1516 and was the title of his book that compared the state of life in Europe at the time with an imaginary ideal society. Utopia is from Greek meaning nowhere.

The thrust of More’s message was that an ideal world, or Utopia, will never exist, and that our only choice is to improve the standards of our existing society.

Is it true that parts of Earth are always covered in ice?

About one-tenth of Earth’s surface is always under the cover of ice. And almost 90 percent of that ice is found in the continent of Antarctica. The remaining 10 percent is found on the mountains in the form of glaciers.

The ice sheet that covers Antarctica is almost one-and-a-half times the size of the United States.

What do potato chips have to do with the heart?

Potato chips often contain saturated fats, which over time can clog the arteries that carry blood to the heart. The oils used to cook the chips are made up of saturated fats, which increases cholesterol production in the body, a known risk factor for heart disease.

Heart disease results from a condition known as atherosclerosis, which happens when a waxy substance forms inside the arteries that supply blood to your heart.

How does the metal switch in a toaster bend?

It bends because it is made of two metals that are joined together, something called a bimetal switch. One metal (usually brass) expands quickly when heated, while the other expands much more slowly. This difference causes the switch to bend toward the low-expansion metal.

Bimetal switches are used in other appliances that switch electricity on and off to keep their temperatures even, like irons and refrigerators. The thermostat that regulates the temperature of your home by turning your furnace and air conditioner on and off also uses a bimetal switch.