Science

TED Radio Hour
9:00 am
Fri March 8, 2013

How Did A Mistake Unlock One Of Space's Mysteries?

Nobel Prize winner Saul Perlmutter explains part of his research in astrophysics.
Kimberly White/Getty Images

Originally published on Fri August 2, 2013 9:24 am

Part 1 of TED Radio Hour episode Peering Into Space.

Physicist Brian Greene explains how the prevailing theories about the fabric of space changed dramatically in the last century — twice. The most recent shift in thinking came about from a strange mistake, and revealed hidden truths about the nature of our universe. Later in this episode, Greene talks more about why this discovery hints at the existence of other universes.

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Environment
1:23 am
Fri March 8, 2013

Past Century's Global Temperature Change Is Fastest On Record

Scientists say they have put together a record of global temperatures dating back to the end of the last ice age, about 11,000 years ago. This historical artwork of the last ice age was made by Swiss geologist and naturalist Oswald Heer.
Oswald Heer Science Source

Originally published on Fri March 8, 2013 9:40 pm

There's plenty of evidence that the climate has warmed up over the past century, and climate scientists know this has happened throughout the history of the planet. But they want to know more about how this warming is different.

Now a research team says it has some new answers. It has put together a record of global temperatures going back to the end of the last ice age — about 11,000 years ago — when mammoths and saber-tooth cats roamed the planet. The study confirms that what we're seeing now is unprecedented.

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The Salt
4:20 pm
Thu March 7, 2013

If Caffeine Can Boost The Memory Of Bees, Can It Help Us, Too?

Adam Cole/NPR iStockphoto.com

Originally published on Thu March 7, 2013 5:13 pm

Who knew that the flower nectar of citrus plants — including some varieties of grapefruit, lemon and oranges — contains caffeine? As does the nectar of coffee plant flowers.

And when honeybees feed on caffeine-containing nectar, it turns out, the caffeine buzz seems to improve their memories — or their motivations for going back for more.

"It is surprising," says Geraldine Wright at Newcastle University in the the U.K., the lead researcher of a new honeybee study published in the journal Science.

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Shots - Health News
1:47 pm
Thu March 7, 2013

To Make Mice Smarter, Add A Few Human Brain Cells

These drawings by Santiago Ramon y Cajal, published in 1899, show cortex neurons.
Santiago Ramon y Cajal Wikimedia Commons

Originally published on Thu March 7, 2013 5:13 pm

For more than a century, neurons have been the superstars of the brain. Their less glamorous partners, glial cells, can't send electric signals, and so they've been mostly ignored.

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Energy
2:07 am
Thu March 7, 2013

BP Bows Out Of Solar, But Industry Outlook Still Sunny

As BP leaves the solar industry, Asian countries such as China are taking a lead role in production.
Xinhua News Agency AP

Originally published on Thu March 7, 2013 11:50 am

The solar energy business is growing quickly, but future growth will not include oil giant BP.

At the IHS CERAWeek energy conference in Houston, BP's CEO made it clear the company is done with solar.

"We have thrown in the towel on solar," Bob Dudley said after delivering a wide-ranging speech Wednesday.

"Not that solar energy isn't a viable energy source, but we worked at it for 35 years, and we really never made money," he added.

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