Science

11:54am

Thu September 5, 2013
Shots - Health News

Tuberculosis Hitched A Ride When Early Humans Left Africa

Originally published on Fri September 6, 2013 1:55 pm

Signs of tuberculosis have been found in ancient Egyptian mummies, such as this one in London's British Museum.
Klafubra Wikimedia.org

Dogs often get credit for being humans' constant companions. But dogs have nothing on tuberculosis bacteria.

TB and people have been trapped in a relationship that's been going on for thousands of years — perhaps even tens of thousands of years, scientists said earlier this week.

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10:28am

Thu September 5, 2013
Shots - Health News

Parents' Harsh Words Might Make Teen Behaviors Worse

Originally published on Fri September 6, 2013 1:56 pm

Sure you're steamed. But teenagers tend to meet harsh words with even worse behavior, a study says.
Katherine Streeter

Most parents yell at their kids at some point. It often feels like the last option for getting children to pay attention and shape up.

But harsh verbal discipline may backfire. Teenagers act worse if they're yelled at, a study finds.

Researchers asked parents of 13-year-olds in the Philadelphia area how often in the past year they'd yelled, cursed or called the kid "dumb or lazy or some other word like that" after he or she had done something wrong.

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8:33am

Thu September 5, 2013
Krulwich Wonders...

Wild Things Hanging From Spruce Trees

Originally published on Thu September 5, 2013 10:45 am

Robert Krulwich NPR

Stanley Kunitz, one of our great poets, planted a spruce tree next to his house in Provincetown, Mass., and over the years that tree attracted some tenants, a family of garden snakes. I didn't know garden snakes climb trees, especially needly ones like a spruce, but they do.

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5:49pm

Wed September 4, 2013
Shots - Health News

Multitasking After 60: Video Game Boosts Focus, Mental Agility

Originally published on Tue September 10, 2013 5:22 pm

Strenuous mental exercise like reading difficult books, solving tricky math problems — or, maybe, playing the right video game — can help keep a healthy brain sharp, research suggests.
Images.com/Corbis

A brain that trains can stay in the fast lane. That's the message of a study showing that playing a brain training video game for a month can rejuvenate the multitasking abilities of people in their 60s, 70s and 80s.

"After training, they improved their multitasking beyond the level of 20-year-olds," says Adam Gazzaley, one of the study's authors and a brain scientist at the University of California, San Francisco.

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5:33pm

Wed September 4, 2013
The Two-Way

Scientists Demonstrate Leaner System For Quantum Encryption

Originally published on Wed September 4, 2013 8:48 pm

Navajo encryption boxes seen at right in 2003 employ principles of quantum physics. The latest research has shown the ability to run larger networks with less such hardware.
Elise Amendola Associated Press

Scientists have demonstrated the ability to scale-up an 'uncrackable' computer encryption system that utilizes quantum physics to ensure security.

The technique is based on information that is carried by photons, the basic particles of light. While it's been demonstrated on a small scale, the team headed by Andrew Shields and publishing in Nature says they've shown that up to 64 users can share a single photon detector, eliminating the need for each one to have such an (expensive) device.

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5:27pm

Wed September 4, 2013
Food

Fixing Stove Hoods To Keep Pollution Out Of The Kitchen

Originally published on Wed September 4, 2013 6:47 pm

Cooking on gas and electric stoves can create indoor air pollution. The best way to avoid it is to buy a good range hood that vents outside, experts say.
iStockphoto.com

Hot summer days often mean air pollution warnings in big cities. But the air inside your kitchen can sometimes be just as harmful. Cooking fumes from your stove are supposed to be captured by a hood over the range — but even some expensive models aren't that effective.

Jennifer Logue spends a lot of time thinking about what happens when she cooks. She's a research scientist at Lawrence Berkeley National Lab, where she studies indoor air pollution.

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3:45pm

Wed September 4, 2013
Shots - Health News

The Inside Story On The Fear Of Holes

Originally published on Thu September 5, 2013 9:25 am

Beautiful or creepy? A recent survey found that an image of a lotus seed head makes about 15 percent of people uncomfortable or even repulsed.
tanakawho Flickr.com

Trypophobia may be moving out of the urban dictionary and into the scientific literature.

A recent study in the peer-review journal Psychological Science takes a first crack at explaining why some people may suffer from a fear of holes.

Trypophobia may be hard to find in textbooks and diagnostic manuals, but a brief Web search will show that plenty of people appear to have it.

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12:55pm

Wed September 4, 2013
The Two-Way

Lights Out In Venezuela; President Blames Opposition Saboteurs

Originally published on Wed September 4, 2013 5:57 pm

Fans wait for play to resume Tuesday at a FIBA World Cup qualifying basketball game in Caracas, Venezuela. A blackout left about 70 percent of the country without electricity.
Ariana Cubillos AP

Venezuela's President Nicholas Maduro said a massive power outage that plunged most of the country into darkness Tuesday, causing traffic chaos in the bustling capital of Caracas, was due to sabotage.

Officials said 70 percent of the country was without electricity, shutting down traffic lights and partially disrupting the underground transport system.

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12:37pm

Wed September 4, 2013
The Salt

A Greener Way To Cool Your Foods On The Way To The Grocery Store

Originally published on Wed September 4, 2013 5:13 pm

Your produce and frozen foods could soon arrive at grocery stores in trucks that release fewer emissions. Researchers are developing a clean technology to keep your food cool while it travels.

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7:48am

Wed September 4, 2013
All Tech Considered

Tailgaters Rejoice! This Cooler Keeps Beers Cold Without Ice

Originally published on Wed September 4, 2013 12:47 pm

The Case Coolie weighs 1.5 pounds and promises to keep beverages cold for 10 hours.
Courtesy of Case Coolie

In our "Weekly Innovation" blog series, we explore an interesting idea, design or product that you may not have heard of yet. Do you have an innovation to share? Use this quick form. That's how we found this week's pick!

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