Showing posts with label Health. Show all posts
Showing posts with label Health. Show all posts
Mar
02

Black Hole Spins at Nearly the Speed of Light

A superfast black hole nearly 60 million light-years away appears to be pushing the ultimate speed limit of the universe, a new study says.For the first time, astronomers have managed to measure the rate of spin of a supermassive black hole—and it's been clocked at 84 percent of the speed of light, or the maximum allowed by the law of physics."The most exciting part of this finding is...
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Mar
01

Scarred Duckbill Dinosaur Escaped T. Rex Attack

A scar on the face of a duckbill dinosaur received after a close encounter with a Tyrannosaurus rex is the first clear case of a healed dinosaur wound, scientists say.The finding, detailed in the current issue of the journal Cretaceous Research, also reveals that the healing properties of dinosaur skin were likely very similar to that of modern reptiles.The lucky dinosaur was an adult...
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Feb
28

Why African Rhinos Are Facing a Crisis

The body count for African rhinos killed for their horns is approaching crisis proportions, according to the latest figures released by the International Union for Conservation of Nature (IUCN). To National Geographic reporter Peter Gwin, the dire numbers—a rhinoceros slain every 11 minutes since the beginning of 2013—don't come as a surprise. "The killing will continue as long as...
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Feb
27

A History of Balloon Crashes

A hot-air balloon exploded in Egypt yesterday as it carried 19 people over ancient ruins near Luxor. The cause is believed to be a torn gas hose. In Egypt as in many other countries, balloon rides are a popular way to sightsee. (Read about unmanned flight in National Geographic magazine.)The sport of hot-air ballooning dates to 1783, when a French balloon took to the skies with a sheep,...
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Feb
26

Sharks Warn Off Predators By Wielding Light Sabers

Diminutive deep-sea sharks illuminate spines on their backs like light sabers to warn potential predators that they could get a sharp mouthful, a new study suggests.Paradoxically, the sharks seem to produce light both to hide and to be conspicuous—a first in the world of glowing sharks. (See photos of other sea creatures that glow.)"Three years ago we showed that velvet belly lanternsharks...
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Feb
25

Picture Archive: Dorothy Lamour and Jiggs, Circa 1938

Dorothy Lamour, most famous for her Road to ... series of movies with Bing Crosby and Bob Hope, never won an Oscar. In her 50-plus-year career as an actress, she never even got nominated.Neither did Jiggs the chimpanzee, pictured here with Lamour on the set of Her Jungle Love in a photo published in the 1938 National Geographic story "Monkey Folk."No animal has ever been nominated for...
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Feb
23

Space Pictures This Week: Space Rose, Ghostly Horses

Space RoseImage courtesy T.A. Rector and H. Schweiker, UAA/WIYN/NOAO/NSFPlanetary nebula Sh2-174 "blooms" like a rose in a picture released this week by the National Optical Astronomy...
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Feb
22

Oldest Known Wild Bird Hatches Chick at 62

Wisdom, the oldest known wild bird, has yet another feather in her cap—a new chick.The Laysan albatross (Phoebastria immutabilis)—62 years old at least—recently hatched a healthy baby in the U.S. Midway Atoll National Wildlife Refuge, her sixth in a row and possibly the 35th of her lifetime, according to the U.S. Geological Survey's (USGS) North American Bird Banding Program. (Related:...
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Feb
21

NASA's Mars Rover Makes Successful First Drill

For the first time ever, people have drilled into a rock on Mars, collecting the powdered remains from the hole for analysis.Images sent back from NASA's Mars rover Curiosity on Wednesday confirmed that the precious sample is being held by the rover's scoop, and will soon be delivered to two miniature chemical labs to undergo an unprecedented analysis. (Related: "Mars Rover Curiosity...
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Feb
20

Florida Python Hunt Captures 68 Invasive Snakes

It's a wrap—the 2013 Python Challenge has nabbed 68 invasive Burmese pythons in Florida, organizers say. And experts are surprised so many of the elusive giants were caught.Nearly 1,600 people from 38 states—most of them inexperienced hunters—registered for the chance to track down one of the animals, many of which descend from snakes that either escaped or were dumped into the wild.Since...
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Feb
19

Confirmed: Dogs Sneak Food When People Aren't Looking

Many dog owners will swear their pups are up to something when out of view of watchful eyes. Shoes go missing, couches have mysterious teeth marks, and food disappears. They seem to disregard the word "no."Now, a new study suggests dogs might understand people even better than we thought. (Related: "Animal Minds.")The research shows that domestic dogs, when told not to snatch a piece of...
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Feb
18

Meet the Meteorite Hunter

Michael Farmer is one of the world's only full-time meteorite hunters. Since the 1990s, the 40-year-old Tucson, Arizona, resident has been scouring the world for pieces of interstellar rock, racing to be the first one on the scene and selling his finds to museums and private collectors. On Friday, as Russians reportedly scrambled to collect fragments from a passing meteorite that injured...
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Feb
17

Picture Archive: Making Mount Rushmore, 1935-1941

Photograph from Rapid City Chamber of Commerce/National GeographicThere's no such thing as Presidents' Day.According to United States federal government code, the holiday is named Washington's Birthday, and has been since it went nationwide in 1885.But common practice is more inclusive. The holiday expanded to add in other U.S. presidents in the 1960s, and the moniker Presidents' Day became popular...
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Feb
16

Why the Dog Show Winner Looks Like a Monkey

Standing less than a foot tall and easily cradled in one of trainer Ernesto Lara's arms, Banana Joe made big news for a small dog when he became the first affenpinscher to win the Westminster Kennel Club dog show on Tuesday.His short stature and flattened face might not make Banana Joe look like a typical winner: The name "affenpinscher" is German for "monkey terrier," and its mug is definitely...
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Feb
15

Why We Walk … and Run … And Walk Again to Get Where We're Going

You have to get to a bus stop to catch the once-an-hour express ... or to a restaurant to meet a friend ... or to a doctor's office. You've got maybe a half a mile to cover and you're worried you'll be late. You run, then you stop and walk, then run some more.But wait. Wouldn't it be better to run the whole way?Not necessarily.A new study by an assistant professor of mechanical engineering...
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Feb
14

Are Honeybees Losing Their Way?

A single honeybee visits hundreds, sometimes thousands, of flowers a day in search of nectar and pollen. Then it must find its way back to the hive, navigating distances up to five miles (eight kilometers), and perform a "waggle dance" to tell the other bees where the flowers are.A new study shows that long-term exposure to a combination of certain pesticides might impair the bee's ability...
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Feb
13

Obama Pledges U.S. Action on Climate, With or Without Congress

If there were anything in President Barack Obama's State of the Union to give hope to wistful environmentalists, it was the unprecedented promise to confront climate change with or without Congress, and to pursue new energy technology in the process.Following his strong statements in his inaugural address about the ripeness of the moment to address a changing climate, Obama outlined a...
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Feb
12

Kumbh Mela: Pictures From the Hindu Holy Festival

Holy BathPhotograph by Roberto Schmidt, AFP/Getty ImagesThe Hindu festival known as Kumbh Mela, often referred to as the world’s largest gathering of humanity, peaked on Sunday at...
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