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100 years ago: The first virus was found in both plants and animals. |
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90 years ago: The Grand Canyon became a national monument & Cellophane is invented. |
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80 years ago: The food mixer and the domestic refrigerator were invented. |
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70 years ago: The teletype and PVC (polyvinyl-chloride) were invented. |
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60 years ago: Otto Hahn discovered nuclear fission by splitting uranium, Teflon was invented. |
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50 years ago: Velcro was invented. |
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40 years ago: An all-female population of lizards was discovered in Armenia. |
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30 years ago: The computer mouse was invented. |
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20 years ago: First test-tube baby born in England, Pluto’s moon, Charon, discovered. |
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10 years ago: First patent for a genetically-engineered mouse was issued to Harvard Medical School. |
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5 years ago: The first successful cloning of human embryo |
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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 .11 inches (.28 cm) long. |
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The longest cells in the human body are the motor neurons. They can be up to 4.5 feet (1.37 meters) long and run from the lower spinal cord to the big toe. |
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There are no poisonous snakes in Maine. |
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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 largest man-made lake in the U.S. is Lake Mead, created by Hoover Dam. |
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The poison arrow frogs of South and Central America are the most poisonous animals in the world. |
Wednesday 4 November 2015
sciencey facts
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