Science

Krulwich Wonders...
5:28 am
Sat May 25, 2013

What If There's No Internet?

Vimeo

Originally published on Sat May 25, 2013 2:38 pm

I email. I search. I shop. I Facebook. I stream. I Skype. Every year I seem to do these things a little bit more. Stroke by stroke, as I slip deeper into the Internet's embrace, I find myself wondering:

"What would happen if the Internet went away?"

Can it? It was famously built to be indestructible, with no center, no hub, no "off" or "on" switch. It is, after all, a creature of the U.S. Defense Department, designed, supposedly, to survive a global war.

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The Two-Way
3:08 pm
Fri May 24, 2013

Ring Nebula Is More Like A Jelly Doughnut, NASA Says

The famous Ring Nebula is shown here in striking detail, in a composite image made from images from NASA's Hubble Space Telescope and infrared data from telescopes on Earth.
NASA, ESA, C.R. Robert O'Dell, G.J. Ferland, W.J. Henney and M. Peimbert

The Ring Nebula, whose iconic shape and large size make it a favorite of amateur astronomers, can now be seen in new detail, after NASA's Hubble Space Telescope captured a sharp image of the nebula. Researchers say the new clarity reveals details that were previously unseen, and a structure that's more complex than scientists had believed.

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The Two-Way
11:25 am
Fri May 24, 2013

Amphibians' Population Decline Marked In New U.S. Study

Populations of frogs and other amphibians are declining at an average rate of 3.7 percent each year, according to a new U.S. Geological Survey study.
Karen Bleier AFP/Getty Images

Originally published on Fri May 24, 2013 12:37 pm

Populations of frogs, salamanders and other amphibians are declining at an average rate of 3.7 percent each year, according to a U.S. Geological Survey study released this week. Researchers say the study is the first to calculate how quickly amphibians are disappearing in the United States.

"If the rate observed is representative and remains unchanged, these species would disappear from half of the habitats they currently occupy in about 20 years," according to the USGS.

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NPR Story
10:53 am
Fri May 24, 2013

'Crazy Ants' Spreading In The Southeastern US

Originally published on Fri May 24, 2013 12:01 pm

In parts of the southeastern US, aggressive fire ants have been driven out by an even more recent arrival, the tawny crazy ant. Edward LeBrun, a researcher at the University of Texas at Austin, describes the newcomers and how one invasive species can out-invade another.

NPR Story
10:53 am
Fri May 24, 2013

Having a Dog May Mean Having Extra Microbes

Originally published on Fri May 24, 2013 1:57 pm

Transcript

FLORA LICHTMAN, HOST:

This is SCIENCE FRIDAY. I'm Flora Lichtman, filling in for Ira Flatow today. If you could count up all the bacteria in your house, how many different species do you think you'd find - 50, a couple hundred? How about thousands, with an S at the end? My next guest had volunteers swab surfaces in their home - pillowcase, the TV screen, the toilet seat - to see what might be living there. And in each of the 40 households, the same spots were swabbed.

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