- Did you know that there are 206 bones in the adult human body and there are 300 in children (as they grow some of the bones fuse together).
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- The smallest bone in the human body is the stapes or stirrup bone located in the middle ear. It is approximately 0.11 inches (0.28 cm) long.
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- The most dangerous animal in the world is the common housefly. Because of their habit of visiting animal waste, they transmit more diseases than any other animal.
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- The blue whale can produce sounds up to 188 decibels. This is the loudest sound produced by a living animal and has been detected as far away as 530 miles.
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- The human eye blinks an average of 4 200 000 times a year.
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- The Skylab astronauts grew 1.5 - 2.25 inches (3.8 - 5.7 centimetres) due to spinal lengthening and straightening as a result of zero gravity.
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- The largest telescope in the world is currently being constructed in northern Chile. The telescope will utilise four 26 ft 8 in (8.13 metres) mirrors, which will gather as much light as a single 52 ft. 6 in. (16 metres) mirror.
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- The Hubble Space Telescope weighs 12 tons (10 896 kilograms), is 43 feet (13.1 metres) long and cost $2.1 billion to build.
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- The greatest tidal site2016 on earth occurs in the Bay of Fundy. The difference between low tide and high tide can be as great as 54 ft 6 in (16.6 meters).
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- The heaviest human brain ever recorded weighed 5 lb 1.1 oz (2.3 kg).
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- The deepest part of the ocean is 35 813 feet (10 916 metres) deep and occurs in the Mariana Trench in the Pacific Ocean. At that depth, the pressure is 18 000 pounds (9 172 kilograms) per square inch.
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- The largest cave in the world (the Sarawak Chamber in Malaysia) is 2 300 feet (701 metres) long, 980 feet (299 metres) wide and more than 230 feet (70 metres) high.
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- The hottest planet in the solar system is Venus, with an estimated surface temperature of 864 F (462 °C).
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- The ears of a cricket are located on the front legs, just below the knee.
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- The cosmos contains approximately 50 000 000 000 galaxies.
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- Sound travels about 4 times faster in water than in air.
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- The microwave was invented after a researcher walked by a radar tube and a chocolate bar melted in his pocket.
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- Super Glue was invented by accident. The researcher was trying to make optical coating materials and would test their properties by putting them between two prisms and shining light through them. When he tried the cyano-acrylate, he couldn't get the prisms apart.
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- No matter its size or thickness, no piece of paper can be folded in half more than 7 times.
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- According to an old English system of time units, a moment is one and a half minutes.
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- Diamonds are the hardest substance known to man.
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- JB Dunlop was first to put air into tires.
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- Alexander Graham Bell, who invented the telephone, also set a world water-speed record of over seventy miles an hour at the age of seventy-two.
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- The United States consumes 25% of all the world's energy.
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- A Boeing 707 uses four thousand gallons of fuel in its take-off climb.
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- It takes 70% less energy to produce a ton of paper from recycled paper than from trees.
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- The planet Saturn has a density lower than water. So, if placed in water, it would float.
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- Hawaii is moving toward Japan 4 inches every year.
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- The centre of the Sun is about 27 million °F (15 million °C).
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- Sunlight can penetrate clean ocean water to a depth of 240 feet.
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- The common goldfish is the only animal that can see both infra-red and ultra-violet light.
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- An ostrich's eye is bigger that its brain.
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- It's impossible to sneeze with your eyes open.
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- The pupil of an octopus' eye is rectangular.
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- Our eyes are always the same size from birth, but our nose and ears never stop growing.