Those were finger nails working their way across a chalkboard. Some of you might have felt a shiver. It's one of those sounds that provokes a physical reaction. Scientists have looked into the why foryears and this week, scientists presented another theory at the Acoustical Society of America meeting.
When the Republican presidential candidates meet Wednesday evening in Michigan for their ninth debate (it feels like there've been many more than that) the main topic up for discussion is supposed to be the economy.
But is there anyone who expects that the travails of Herman Cain won't be a subtopic?
The former Godfather Pizza CEO's flat-tax plan encountered severe turbulence at the last debate and it is likely to experience more during the encounter at Oakland University outside Detroit.
Wife Deborah Bryant waits as Mississippi Governor-elect Phil Bryant thanks a supporter Tuesday at a victory party. Bryant supported a controversial amendment to the state's constitution on "personhood."
Voters in Mississippi were expected to make it the first state to confer protected legal status to fertilized human eggs Tuesday. Instead, they made it the second state to reject a so-called personhood amendment to its constitution.
One possible reason is that the effort divides even those who consider themselves against abortion.
Libya may be months from a new government, but the still-infrequent international flights to Tripoli are packed with businesspeople looking to land contracts with this oil-rich North African state. The Turks and Europeans appear to be moving quickly, while the Americans seem to be several steps behind.
On one recent afternoon, the plush Rixos hotel in Tripoli hosted hastily organized meetings between Libyans and a swarm of Turks representing 150 different companies.
Russia and the former Soviet Union haven't had much luck when it comes to missions to the red planet. On Tuesday, it launched a probe destined for Mars. It was supposed to land on Phobos, one of the planet's moons, scoop up some rocks and return home with its specimens.
Instead, the Phobos-Grunt spacecraft launched successfully into orbit, but then its boosters failed to ignite, so for now, it's stuck orbiting our planet.
These photos, which came to us via email from the World Wildlife Fund, show an amazing scene: Nineteen sedated black rhinoceroses were airlifted out of an area in South Africa, and spent about 10 minutes upside down in the air en route to a new home.
Outspoken Chinese artist and activist Ai Weiwei (shown inside his compound on the outskirts of Beijing) was detained by the government for nearly three months. Now, the government says he owes $2.4 million in taxes and fines. Supporters are sending him money, raising nearly $1 million so far.
Credit Frank Langfitt / NPR
Last week, supporters delivered donations over the wall of Ai's compound in Beijing — 100 yuan notes folded into paper airplanes.
Credit Frank Langfitt / NPR
A man admires <em>Forever Bicycles</em>, a work by Ai Weiwei, at the Taipei Fine Art Museum last month.
The Chinese government slapped artist Ai Weiwei — one of China's most famous dissidents — with a $2.4 million tax bill last week. The move was widely seen as punishment for Ai's relentless criticism of the Communist Party.
Since then, in an outpouring of support rarely seen for a government critic, thousands of people have loaned Ai nearly $1 million to help pay the fine.
When talking to people who have given to a candidate's campaign, you'd expect to find true believers.
"I liked what I heard, and he seemed to be the kind of person that I would like to see be president of the United States," says Carl Ploeger, who has donated twice to embattled GOP hopeful Herman Cain.