Binoculars vs. telescopes

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Both binoculars and telescopes have something in common, and it consists of the fact that they are both optical instruments. Other than that, there might not be so many similarities between the two. Some...
Greenland without ice

There was a time where Greenland was really green?

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The short response: yes. The vikings saw that green land? No; they were lucky enough to find it in the summer and to touch the southern corner of the island.  Greenland was once a...

‘Squid teeth’ plastic self-heals with water

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Scientists derived the genetic code of squid ring teeth to develop a polymer that self-heals with a single drop of water. The material potentially could extend the life of medical implants, fiber-optic cables, and other...

Calculus shows just how fast Usain Bolt runs

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With gold medals in three sprinting events at three Olympic Games, Usain Bolt is arguably the fastest human of all time. But just how fast is the Jamaican sprinter? Three mathematicians show how to calculate Bolt’s...

Scientists turned dung beetle horns into ‘cyclops’ eyes

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Beetles with cyclops eyes show how new traits may evolve through the recruitment of existing genes—even if these genes are already carrying out critical functions. The discovery was made after scientists switched off orthodenticle genes in...

Gold ‘sponge’ sensor can handle messy samples

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Sponge-like nanoporous gold could be key to new devices for detecting disease-causing agents in humans and plants, say researchers. Two recent papers demonstrate that the team could detect nucleic acids using nanoporous gold, a novel...

Teeth link ‘Darwinius’ fossil to lemurs not monkeys

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The fossil Darwinius is the best preserved primate known to exist. The scientists who discovered it thought the 47-million-year-old fossil was closely related to squirrel monkeys. But a new examination of the sequence in which adult teeth come in—known as dental...

Dried-up ponds are bad news for mountain frogs

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The long summer drought in the Pacific Northwest is doing more than causing raging wildfires in Washington state forests. A less noticeable consequence is taking place in mountain ponds as the drought and minimal snowpack...

Sand absorbs high-speed projectiles better than steel

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If someone is firing projectiles in your direction, you might be safer hiding behind a sand block rather than a steel wall, new research shows. While sand has long been used in military fortification, limited...

Spectacular time-lapse of the launch of the Falcon 9 rocket from SpaceX

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Last Friday, December 22, SpaceX made its last release of the year from the Vandenberg Air Force Base in southern California. While many caused a stir in social networks to confuse it with an...
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