short science articles

A Squirt of Stem Cell Gel Heals Brain Injuries


Scientists have developed a gel that helps brains recover from traumatic injuries. It has the potential to treat head injuries suffered in combat, car accidents, falls, or gunshot wounds. Developed by Dr. Ning Zhang at Clemson University in South Carolina, the gel is injected in liquid form at the site of injury and stimulates the growth of stem cells there.

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Strong Personalities Skew Study Samples

Birds of a feather flock together -- right into scientists' nets

All pet owners will happily explain to you their dog or cat's character traits -- probably in far more detail than you ever wanted to know. But the idea of animal personality is not one that's been formally studied all that much.

A new study has classed a species of bird into groups of more and less aggressive males. Researchers gauged the response of male collared flycatchers to female birds, to a strange object, and to other males. They found that each type of individual displayed consistent behavior in each of these situations.

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Science Confirms the Obvious

Parents and Adult Children: Mutually Irritating

Family dynamics often fraught with tension, study shows

Investigators at the University of Michigan's Institute for Social Research have unequivocally demonstrated that our parents often get on our nerves -- and we on theirs. "The parent-child relationship is one of the longest-lasting social ties human beings establish," said Kira Birditt, the study's lead. "This tie is often highly positive and supportive but it also commonly includes feelings of irritation, tension and ambivalence."

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Swine Flu News Update

While the virus appears less deadly than originally thought, swine flu continues to spread

So, despite some media hysteria last week, it looks like the swine flu won't be the death of us all. However, that does not mean the virus has stopped spreading, or that it won't reach pandemic levels and possibly cause significant economic damage.

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Website Yields Unexpected Results in the Business of Artifacts

"Antiquities" on eBay lead to less archaeological looting, and more fakes

eBay may turn household junk into online treasure, but archaeologists held their breaths in horrified anticipation when the site first launched over a decade ago thinking that the illegal artifacts market would surely explode in a frenzy of looting.

Now the same archaeologists conclude that the online auction site has had a very different impact on their field. Looting ancient sites turns out to be less profitable than just churning out the fakes and hawking them on eBay.

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The Breakdown

The Physics of Free Running

Before you leap, look to Newton

Check out this demo reel of Levi Meeuwenberg doing some jaw-dropping "free running". Free running is very similar to Parkour in the athleticism required and specific techniques and movements used, but while Parkour is about getting from one place to another in as efficient a manner as possible, free running is less directed and more creative in nature.

As mentioned in that ancient post, when performing either of these activities, in addition to spending years developing a formidable set of technical skills, balance, physical strength, and kamikaze attitude, it's important to be cognizant of some basic physics.

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Face Off

The first American face-transplant recipient greets the world

Last March, a French surgical team proved that face transplants weren't just for Nic Cage and John Travolta. Then, in December, an American team successfully performed the first face transplant on this side of the Atlantic. And yesterday, we got our first look at the results.

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Narc Copter

Flying robots hunt for drugs

What happened to you, Holland? You used to be cool. As every popped-collar, half-witted frat boy and Bonnaroo-attending, blond dreadlock-wearing neo-hippie moron repeats ad nauseum, you were the country kindest to the kind bud.

Well, apparently Dutch robots aren't quite so accepting of a little puff now and then.

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Merck and Elsevier Create "Peer-Reviewed" Advertorial

Time to cancel that subscription to the Australasian Journal of Bone and Joint Medicine

It seems as though pharmaceutical giant Merck (best known for the deadly painkiller Vioxx), has teamed up with science publishing titan Elsevier (who, not long ago, got caught producing a rather questionable math journal) to put out a fake peer-reviewed medical journal.

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The Sex Files

Is Sperm Like Any Other Commodity?

Banked, bought, sold, stolen -- now, accountable to product liability laws

Our sperm and eggs give us one of the greatest responsibilities on the planet: the potential to generate new life, to put forth onto the Earth another living, breathing, thinking, feeling being. Or, they can be sold for a buck.

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December 2009: Best of What's New

In our December issue, Popular Science names the 100 best innovations of the year: bombproof wallpaper, self-parking cars, the fastest helicopter, and 97 more. Plus inventor profiles and videos.

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