Tài liệu 1001 Shocking Science Facts ppt

[...]... would then be snapped off leaving its jaws as the ‘stitch’! Shocking Body Facts Some people are ‘human calculators’ and can do really complicated sums in their heads instantly – even faster than someone with a calculator! No one knows exactly how their brains are different 1001 Science 009-046 Ch1.qxd 16/4/08 17:07 Page 12 12 1001 Shocking Science Facts Your brain receives about 100 million pieces of information... stretch to about 3.2 million kilometres (2 million miles) Shocking Body Facts More people are allergic to cows’ milk than to any other food or drink Rubbing yourself with a garlic clove is supposed to keep mosquitoes away and vampires and probably other people, too! 1001 Science 009-046 Ch1.qxd 16/4/08 17:07 Page 14 14 1001 Shocking Science Facts The strongest muscle in your body is your tongue! If... other blood type and may need to store their own blood in advance of an operation Shocking Body Facts Beard hair grows faster than any other hair on the human body If left to grow for his whole life, a man’s beard could be 9 metres (30 feet) long 1001 Science 009-046 Ch1.qxd 16/4/08 17:07 Page 16 16 1001 Shocking Science Facts When you hold a seashell to your ear to ‘hear the sea’, what you actually... garlic on the bottom of your foot, it would be absorbed through your skin and eventually your breath would smell of garlic! Shocking Body Facts A single human hair can support the weight of an apple 1001 Science 009-046 Ch1.qxd 16/4/08 17:07 Page 18 18 1001 Shocking Science Facts Laughing seems to reduce a person’s allergic responses So if you have hay fever, try laughing about it! Around 10 per cent... zinc than the hair of less clever people It is impossible to sneeze with your eyes open Shocking Body Facts Most people spend about the same amount of time blinking as they spend eating – a total of about five years over a whole lifetime 1001 Science 009-046 Ch1.qxd 16/4/08 17:07 Page 20 20 1001 Shocking Science Facts When you sneeze, all of your bodily functions stop momentarily An average person... various situations Scientists study their decomposition and the information is used to help police with murder investigations Shocking Body Facts Your fingernails grow four times faster than your toenails 1001 Science 009-046 Ch1.qxd 16/4/08 17:07 Page 22 22 1001 Shocking Science Facts Mitochondria are parts of the cells in our bodies Scientists think that they were originally bacteria, which have become... electrical energy generated by your brain is enough to power a light bulb! Shocking Body Facts People in Pakistan have been visiting the dentist for 9,000 years Archaeologists have found drilled and capped teeth in ancient skeletons discovered there 1001 Science 009-046 Ch1.qxd 16/4/08 17:07 Page 24 24 1001 Shocking Science Facts Medical researchers studied 46 professional swordswallowers and discovered... centimetre (0.4 inches) per hour, so if you have one you can watch it moving under your skin! Shocking Body Facts There are around 100 million microbes living in your mouth at any time They feed on scraps of food and dead cells from your mouth 1001 Science 009-046 Ch1.qxd 16/4/08 17:07 Page 26 26 1001 Shocking Science Facts The name for gurgling in your stomach is borborygmus It’s caused by all the gases... feet) in length.You may not even know you have one Shocking Body Facts Mucous (slime) in your nose collects all the dirt you breathe in, including particles of smoke, pollen, exhaust fumes – and even dust from outer space! The slime and dirt clump together to make bogeys 1001 Science 009-046 Ch1.qxd 16/4/08 17:07 Page 28 28 1001 Shocking Science Facts There are tiny hairs all over your body, except... wolves.These may explain some of the stories about werewolves Shocking Body Facts Forensic scientists examine maggots and beetles eating dead bodies to try to work out the time that the person died They work out at which stages of decomposition the different bugs like to eat the body 1001 Science 009-046 Ch1.qxd 16/4/08 17:07 Page 30 30 1001 Shocking Science Facts Roy Sullivan of the USA survived being struck . Creature Facts . . 75 Shocking Living World Facts . . . . 95 Shocking Planet Earth Facts . . . . 119 Shocking Space Facts . . . . . . . . 143 Shocking. Kate Overy 1001 Science 001-004 Arc.qxd 16/4/08 17:05 Page 4 Shocking Body Facts . . . . . . . . . . 9 Shocking Animal Facts . . . . . . . . 47 Shocking