Wednesday, August 17, 2011

Useless Facts > Human Body

The average human brain has about 100 billion nerve cells.>> There are 45 miles (72 km) of nerves in the skin of a human being.

The average human heart will beat 3,000 million times in its lifetime and pump 48 million gallons of blood.

Each square inch (2.5 cm) of human skin consists of 20 feet (6 m) of blood vessels.

During a 24-hour period, the average human will breathe 23,040 times.

Human blood travels 60,000 miles (96,540 km) per day on its journey through the body.

>> Nerve impulses to and from the brain travel as fast as 170 miles (274 km) per hour.

>> The thyroid cartilage is more commonly known as the adams apple.

>> It’s impossible to sneeze with your eyes open.

>> Your stomach needs to produce a new layer of mucus every two weeks or it would digest itself.

>> It takes the interaction of 72 different muscles to produce human speech.

>> The average life of a taste bud is 10 days.

>> The average cough comes out of your mouth at 60 miles (96.5 km) per hour.

>> Relative to size, the strongest muscle in the body is the tongue.

>> When you sneeze, all your bodily functions stop even your heart.

>> Babies are born without knee caps. They don’t appear until the child reaches 2-6 years of age.

>> Right handed people live, on average, nine years longer than left handed people do.

>> Children grow faster in the springtime.

>> It takes the stomach an hour to break down cow milk.

>> Women blink nearly twice as much as men.

>> Blondes have more hair than dark-haired people do.

>> There are 10 human body parts that are only 3 letters long (eye hip arm leg ear toe jaw rib lip gum).

>> If you go blind in one eye you only lose about one fifth of your vision but all your sense of depth.

>> The average human head weighs about 8 pounds.

>> Our eyes are always the same size from birth, but our nose and ears never stop growing.

>> In the average lifetime, a person will walk the equivalent of 5 times around the equator.

>> An average human scalp has 100,000 hairs.

>> The length of the finger dictates how fast the fingernail grows. Therefore, the nail on your middle finger grows the fastest, and on average, your toenails grow twice as slow as your fingernails.

>> The average human blinks their eyes 6,205,000 times each year.

>> The entire length of all the eyelashes shed by a human in their life is over 98 feet (30 m).

>> Your skull is made up of 29 different bones.

>> Odontophobia is the fear of teeth.

>> Ancient Egyptians shaved off their eyebrows to mourn the deaths of their cats.

>> Your ears and nose continue to grow throughout your entire life.

>> After you die, your body starts to dry out creating the illusion that your hair and nails are still growing after death.

>> Hair is made from the same substance as fingernails.

>> The average surface of the human intestine is 656 square feet (200 m).

>> A healthy adult can draw in about 200 to 300 cubic inches (3.3 to 4.9 liters) of air at a single breath, but at rest only about 5% of this volume is used.

>> The surface of the human skin is 6.5 square feet (2m).

>> 15 million blood cells are destroyed in the human body every second.

>> The pancreas produces Insulin.

>> The most sensitive cluster of nerves is at the base of the spine.

>> The human body is comprised of 80% water.

>> The average human will shed 40 pounds of skin in a lifetime.

>> Every year about 98% of the atoms in your body are replaced.

>> The human heart creates enough pressure to squirt blood 30 feet (9 m).

>> You were born with 300 bones. When you get to be an adult, you have 206.

>> Human thighbones are stronger than concrete.

>> Every human spent about half an hour as a single cell.

          QUESTIONS :

1 Dry ice is a frozen form of which gas?
2 Where are human triceps muscles to be found?
3 What is the brightest star in the night sky?
4 A leveret is the young of which animal?
5 What term is given to a piece of rock or metal from space that reaches the surface of the Earth?
6 Which part of the eye is coloured and surrounds the pupil?
7 What colour is the most-prized variety of jade?
8 What type of tree is often found in churchyards?
9 Who invented the jet engine?
10 What would you use VOIP for?
11 To which animal does the word lupine refer?
12 Which subatomic particles are found in the nucleus of an atom?
13 Which part of the Earth lies between the outer core and the crust?
14 Orbiting 35,900km above the equator, what term is given to satellites that remain above the same point on the Earth’s surface in their orbit?
15 In trigonometry, what is calculated by the adjacent over the hypotenuse?
16 What unit do barometers and weather maps usually display atmospheric pressure in?
17 Which chemical element, number 11 in the Periodic table, has the symbol Na?
18 Named after a Surrey town where a spring containing this was discovered, how is hydrated magnesium sulphate better known?
19 Reed, Marsh, Sedge and Grasshopper are varieties of which bird?
20 Which New Zealand-born physicist is credited with splitting the atom?
21 Which mineral forms the lead in a pencil?
22 SS Archimedes was an appropriately named ship which was the world’s first to use what form of propulsion?
23 What is the largest fish in the world?
24 What shapes are attached to a line of a weather map to denote a warm front?
25 Who discovered the law that the volume of a given mass of gas at a constant temperature is inversely proportional to its pressure?
26 What is the longest bone in the human body?
27 Relating to flat-screen televisions and monitors, what does LCD stand for?
28 What creature is an ophidiophobe afraid of?
29 What is the mathematical series that starts 0,1,1,2,3,5,8,13,21 called?
30 Deriving its name from an Icelandic word meaning erupt, what term is given to a natural hot spring that intermittently ejects a column of water and steam into the air?
31 Diamonds are a form of which chemical element?
32 Which paper size measures 297x420mm?
33 What piece of computer equipment was invented by Douglas Engelbart of Stanford Research Institute in 1963?
34 What is the highest digit that can appear in an Octal number system?
35 Alopecia is a condition causing the loss of what from the body?
36 What colour are most thistle heads?
37 Up, Down, Top, Bottom, Strange and Charm are the six “flavours” of what elementary particle?
38 What is the device that blends air and fuel for an internal combustion engine called?
39 Which part of a horse’s anatomy is the equivalent of a human ankle?
40 Magnetite, hematite, limonite and siderite are ores of which metal?
41 What name is given to the condition created by too much bile in the bloodstream creating a yellowing of the skin?
42 What acid accumulates in the muscles once the anaerobic threshold is passed when doing exercise?
43 What do 1,000 gigabytes make?
44 Which major spiral galaxy is the closest to the Milky Way and might collide with it in about three billion years?
45 What is the usual colour of copper sulphate?
46 What is the name given to the substance that covers a deer’s antler when it is growing?
47 What is the igneous rock seen in hexagonal columns at the Giant’s Causeway and Fingal’s Cave?
48 Which wind is a warm southerly coming from the Sahara Desert over the Mediterranean?
49 What colour head does a male Mallard have?
50 In which temperature scale is the boiling point of water 80 degrees?
51 Which acid is found in car batteries?
52 What is the ratio 1:1.618 known as?
53 What is an ECG used to show?
54 Where was a speed record of 11.2mph set in 1972?
55 Which form of cloud has an anvil shape and is associated with heavy showers and storms?
56 Old Man’s Beard and Traveller’s Joy are names for a variety of which flower?
57 What is the fruit of the tropical plant Ananas comosus?
58 Which astronomical distance is about 3.26 light years?
59 What is created when the loop of a meander of a river is cut off and the river diverted on a different course?
60 Which sugar is found in milk?
                                      
                                       ANSWERS
1) Carbon Dioxide 2) At the back of the upper arm 3) Sirius (The Dog Star) 4) Hare 5) Meteorite 6) Iris 7) Green 8) The Yew 9) Sir Frank Whittle 10) Making a telephone call on the internet (it stands for Voice Over Internet Protocol) 11) Wolf 12) Protons and Neutrons 13) The Mantle 14) Geostationary 15) Cosine 16) Millibars 17) Sodium 18) Epsom salts 19) Warbler 20) Sir Ernest Rutherford 21) Graphite 22) A Screw Propellor 23) The whale shark 24) Semicircles 25) Robert Boyle 26) The femur (or thighbone) 27) Liquid Crystal Display 28) Snakes 29) A Fibonacci Series 30) Geyser 31) Carbon 32) A3 33) The Mouse 34) 7 35) Hair 36) Purple 37) A Quark 38) A carburettor 39) Fetlock 40) Iron 41) Jaundice 42) Lactic Acid 43) A Terabyte 44) Andromeda 45) Blue 46) Velvet 47) Basalt 48) Sirocco 49) Green 50) Réaumur 51) Sulphuric 52) The Golden Section (also Golden Ratio, Golden mean and Divine Proportion) 53) Heart activity and rhythm (it stands for electrocardiogram) 54) The Moon (John Young of Apollo 16 driving the Lunar Rover!) 55) Cumulonimbus 56) Clematis 57) Pineapple 58) A parsec 59) An Oxbow lake 60) Lactose