There is enough railroad track on the Earth to go to the moon and back many times.
The great horned owl can turn its head 270 degrees.
The Roman Emperor Nero married his male slave Scorus in a public ceremony.
On December 2nd 1942, a nuclear chain reaction was achieved for the first time under the stands of the University of Chicago's football stadium. Although the same process led to the massive energy release of the atomic bomb, the first reaction produced just enough energy to light a small flashlight.
Low-birthweight babies are 20 times more likely to die in their first month of life than normal-weight babies.
Sharks sometimes eat other sharks. For example, a tiger shark might eat a bull shark, a bull shark might eat a blacktip shark and a blacktip shark might eat a dogfish shark!
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OUGH can be pronounced 9 different ways in the following sentence. "A rough-coated, dough-faced, thoughtful ploughman strode through the streets of Scarborough; after falling into a slough, he coughed, houghed, and hiccoughed."
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The ancient city of Venice is set on 117 islands in a lagoon. Instead of streets there are 177 canals, plied by boats called gondolas.
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The U.S Automobile Association was formed in 1905 for the purpose of providing 'scouts' who could warn motorists of hidden police traps.
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When a rattlesnake is born he has a small rounded tip on his tail known as the pre button. Several days after his birth he will shed his skin for the first time and lose this pre button which the button will replace. This is the first segment of his rattle. .
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In the 18th century, antiquarian William Stukeley noticed that the horseshoe of great trilithons and the horseshoe of 19 bluestones at Stonehenge opened up in the direction of the midsummer sunrise.
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In 13,000 BC, the world's hunter-gatherer population was approaching eight and a half million.
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Twenty years make up a vicennial period.
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Over one billion mobile text messages are sent in the UK every month.
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The atmospheric composition on Mars is Carbon Dioxide (CO2) - 95.32% ; Nitrogen (N2) - 2.7% - Argon (Ar) - 1.6%; Oxygen (O2) - 0.13%; Carbon Monoxide (CO) - 0.08%
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