You may have heard that dollar bills harbor trace amounts of drugs.
But those greenbacks in your wallet are hiding far more than cocaine and the flu. They're teeming with life.
Each dollar bill carries about 3,000 types of bacteria on its surface, scientists have found. Most are harmless. But cash also has DNA from drug-resistant microbes. And your wad of dough may even have a smudge of anthrax and diphtheria.
In other words, your wallet is a portable petri dish.
Much of the central Illinois town was wiped away by a half-mile wide tornado last November. In all, 1,108 homes were destroyed or rendered uninhabitable — a huge share of the housing stock in a city of 15,000.
"Early on, people were asking me how long it was going to take to rebuild the city, and I said we'll do it in a year," says Mayor Gary Manier. "That was wishful thinking."
After 6 1/2 weeks of false leads and conflicting information about what may have happened to the jet and the 239 people on board, Wednesday's headlines about the search for Malaysia Airlines Flight 370 need to be viewed with considerable caution:
-- " 'Object of interest' found on Western Australian coast." (CNN.com)
At preschools in Tulsa, Okla., teachers are well-educated and well-paid, and classrooms are focused on play, but are still challenging. One nonprofit in Tulsa, the Community Action Project, has flipped the script on preschool. The idea behind its Career Advance program is simple: To help kids, the group believes, you often have to help their parents.
Originally published on Wed April 23, 2014 7:25 am
President Obama has called repeatedly on Congress to help states pay for "high-quality preschool" for all. In fact, those two words — "high quality" — appear time and again in the president's prepared remarks. They are also a refrain among early childhood education advocates and researchers. But what do they mean? And what separates the best of the nation's preschool programs from the rest?
The game of chess is a national pastime in Russia. And you might say that Vladimir Putin is playing a high-stakes game of geopolitical chess when it comes to Ukraine.
Western leaders are plotting how to counter Putin's latest moves with economic sanctions. So to get some insight into what might come next, we talked to an economist who knows Russia — who is also extremely good at chess.
This week, our tech reporting team is exploring cloud computing — the big business of providing computing power and data storage that companies need, but which happens out of sight, as if it's "in the cloud."
About a dozen or so archaeologists in downtown Columbia, S.C. are focused on a 165-acre sliver of land that used to be a prisoner of war camp during the Civil War. Last summer, the property was sold and the group is trying to recover as many artifacts as they can before a developer builds condos and shops in its place.
"We're out here to salvage what we can in advance of that development," says Chester DePratter, a University of South Carolina archaeologist.