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The man so smart his name is synonymous with 'genius,' Albert Einstein had his fair share of quirks. While his foibles ranged from fascinating to abhorrent, one of the most eccentric was his unabashed hatred for socks. Not only did Einstein believe them to be unnecessary, he flat out refused to wear them.
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Researchers have discovered that the skin replaces itself on a monthly basis, or around 27 days. Because the human life expectancy is around 70-75 years old, the skin can be replaced between 840 to 900 times.
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Ball's Pyramid is an uninhabited islet in the Pacific Ocean located 20 kilometres (12 mi) southeast of Lord Howe Island. The steep rocky outcrop is the eroded plug of a shield volcano and caldera that formed 6.4 million years ago.
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Video credit: Jeb Corliss (Youtube)
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Marine creatures like some fish, squid, tiny crustaceans and algae produce bioluminescence to either confuse predators, attract prey or even lure potential mates.
We humans can witness this natural phenomenon when there is lots of bioluminescence in the water, usually from an algae bloom of plankton. The bioluminescent sea will glow when it’s disturbed by a wave breaking or a splash in the water at night.
Algae bloom sea sparkle events are caused by calm and warm sea conditions. But you can see specks of bioluminescence when it’s created nearby by a light-producing marine creature.
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Biologist Chris Boccia went to study them and he noticed that to stay submerged for long periods, the anoles may slow down their metabolism, reducing the need for oxygen, Boccia suspects. And as oxygen levels in the bubble drop and CO2 levels rise, the bubble may rebalance the levels by shedding CO2 into the water and uptaking dissolved oxygen, he says.
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In a study, 30 of 31 cats responded positively the first time clips were placed on the scruff of their neck. The positive response tended to improve after repeated clippings over three months, suggesting the technique can be used over the course of a cat's lifetime for such procedures as physical examinations, blood draws, and vaccinations.
"It's easy to tell if you're hurting animals because they don't like it when you do things to them that hurt," Buffington said. "When the cats in this study saw the clips, they often would lie down. If the cats were hurt by them, they would have seen those clips and tried to get away. If anything, the effect on them is positive."
The clipping seems to evoke the same scruff response that renders kittens still so their mothers can carry them in their mouths, said senior study author Tony Buffington, professor of veterinary clinical sciences at Ohio State. Even most adult cats will go limp when they are gently grasped by the scruff of the neck, he said.
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Oxygen is exremely addictive, once you start breathing you are addicted for the rest of your life.
A star-tracker rotates the camera at the same speed as the Earth, but in the opposite direction. It has the visual effect of stabilizing the sky. Usually, star-trackers are used to stabilize the camera during a long exposure, to avoid blurry or streaked stars in the image.
The purpose of this video is to help us visualize the Earth’s rotation. It’s something we know is happening, but is not something we directly perceive.
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Found on the sides of the high mountains in southeastern Ecuador and Peru at an elevation of 1,000–2,000 meters, the monkey face orchid is a popular but rare favorite among orchid collectors because it has a distinctive monkey or baboon face in its flower.
While there is no way to confirm, some scientists speculate that the monkey-like resemblance may have evolved as a means to deter primates from munching on these orchids for a snack.
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Gravity goes from 9.7639 m/s2 on the Nevado Huascarán mountain in Peru to 9.8337 m/s2 at the surface of the Arctic Ocean. In large cities, it ranges from 9.7806 m/s2 in Kuala Lumpur, Mexico City, and Singapore to 9.825 m/s2 in Oslo and Helsinki.
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Video by Twitter “amazingmaps”
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The first handheld mobile phone was demonstrated by Martin Cooper of Motorola in New York City on 3 April 1973, using a handset weighing c. 2 kilograms (4.4 lbs).
Nikola Tesla predicted almost 50 years of development process.
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In addition to this, as a thrown baseball rotates, it creates differential pressure around the ball, which exerts a force that changes the path. This force is called “The Magnus Force.” A forward-upwards spin causes lower pressure above the ball, exerting an upwards force that slows the descent of the ball.
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