User:Vigyaan Facts

"VIGYAAN FACTS"


 * The human sense of smell has the ability to identify the chemical smell of an object in one part per trillion of air.


 * human skeleton represents approximately 14% of the average weight of the human male and 10% of the average weight of the human female.


 * Physician Erasistratus of Chios (304-250 B.C.) was the first to discover that the heart functioned as a natural pump.


 * The average person takes 8,000 to 10,000 steps a day, which adds up to about 115,000 miles over a lifetime. That's enough to go around the circumference of the earth four times.


 * human foot & ankle is a strong, mechanical structure that contain 26 bones, 33 joints, and more than 100 muscles, tendons & ligaments.


 * There are approximately 250,000 sweat glands in a pair of feet, and they excrete as much as half a pint of moisture each day.


 * Women have twice as many pain receptors on their bodies than men. But, a much higher pain tolerance.


 * Your ribs move about 5 million times a year, every time you breathe!


 * The human body makes anywhere from 1 to 3 pints of saliva every 24 hours.


 * The 52 bones in your feet make up about one quarter of all the bones in your body.


 * The 52 bones in your feet make up about one quarter of all the bones in your body.


 * A single human brain generates more electrical impulses in a day than all the telephones of the world combined.


 * 50,000 cells in your body died and were replaced by new ones while you were reading this sentence.


 * Laughing lowers levels of stress hormones and strengthens the immune system. Six-year-olds laugh an average of 300 times a day. Adults only laugh 15 to 100 times a day.


 * structure of the human body contains only four minerals: apatite, aragonite, calcite, and crystobalite.


 * At least 100,000 different chemical reactions occur in the normal human brain every second.


 * Male brain area for sexual pursuit is 2.5 times larger than the one in the female brain.


 * The surface area of a human lung is 50 to 75 square metres (540 to 810 sq ft); roughly the same area as one side of a tennis court.


 * human heart is approximately equal in size to that of a person’s fist. An adult’s heart weights 220-260 grams.


 * Babies are born with about 300 bones while adults have only 206 bones.


 * An adult human is composed of approximately 7,000,000,000,000,000,000,000,000,000 (7 octillion) atoms.


 * An adult person performs around 23000 inhalations and exhalations a day.


 * The heart pumps blood to almost all of the body's 75 trillion cells. Only the corneas receive no blood supply.


 * Human skin is completely replaced about 1,000 times during a person's lifetime.


 * The human heart pumps 182 million litres of blood during the average lifetime.


 * Your nose can remember 50000 different scents.


 * Your blood takes a very long trip through your body. If you could stretch out all of a human's blood vessels, they would be about 60,000 miles long. That's enough to go around the world twice.


 * The highest recorded body temperature in a human being was a fever of 115.7°F (46.5°C).


 * Teeth are the only part of the human body which cannot heal themselves.


 * The human eye can distinguish more than 500 shades of gray.


 * Men are officially classified as dwarves if their height is below 1.3 m, whereas for women the measure is 1.2 m.


 * 1 in 10,000 people has their internal organs reversed or "mirrored" from their normal positions.


 * The average human body contains enough sulphur to kill all the fleas on the average dog, enough carbon to make 900 pencils, enough potassium to fire a toy cannon, enough fat to make seven bars of soap and enough water to fill a 50-litre barrel.


 * In a lifetime, your brain's long-term memory can hold as many as 1 quadrillion (1 million billion) separate bits of information.


 * If allowed to grow for their whole lifetime, the length of someone’s hair would be about 725 kilometres.


 * During a person’s lifetime, the small intestine is about 2.5 meters. After they die, the muscles in the walls of their intestine relax, and it’s length increases to 6 meters.


 * When awake, your brain generates 10 to 23 watts of electricity, or enough energy to power a low wattage LED light bulb.


 * There are more than 100 different types of cancers that can affect any organ in the body.


 * If the human brain were a computer, it could perform 38 thousand-trillion operations per second. The world’s most powerful supercomputer, BlueGene, can manage only .002% of that.


 * Around 90% of the cells that make humans aren’t “human” in origin. We’re mostly fungi and bacteria.


 * All of the bacteria in the human body collectively weighs about 4 pounds.