Originally published on Thu July 17, 2014 11:47 am
We often think about people spreading diseases around the world. This spring,vacationers brought chikungunya from the Caribbean to the United States. Businessmen have likely spread Ebola across international borders in West Africa. And health care workers have carried a new virus from the Middle East to Asia and Europe.
The menus of millennia past can be tough to crack, especially when it comes to fruits and vegetables. For archaeologists studying a prehistoric site in Sudan, dental plaque provided a hint.
"When you eat, you get this kind of film of dental plaque over your teeth," says Karen Hardy, an archaeologist with the Catalan Institute for Research and Advanced Studies at the Universitat Autonoma de Barcelona.
Something quite extraordinary happened in Europe during the 17th and 18th centuries: the diversified intellectual explosion called the Enlightenment. Philosophers, natural scientists (the divide between the two wasn't that wide then), artists and political scientists created a revolution in thought based on equal rights for men the freedom to reason without constraint.
Admittedly, it was a relative equality, with some Enlightenment philosophers mistakenly placing white men at the apex of society.
The area of Russia is said to be called, ominously enough, the end of the world. And that's where researchers are headed this week, to investigate a large crater whose appearance reportedly caught scientists by surprise. The crater is estimated at 262 feet wide and is in the northern Siberian area of Yamal.
Forty-five years ago, this week, 123 million of us watched Neil and Buzz step onto the moon. In 1969, we numbered about 200 million, so more than half of America was in the audience that day. Neil Armstrong instantly became a household name, an icon, a hero. And then â€” and this, I bet, you didn't know â€” just as quickly, he faded away.
"Whatever Happened to Neil Whosis?" asked the Chicago Tribunein 1974.
Standing in the middle of a swarm of bees might not be your idea of stress relief, but it works for Ray Von Culin. He's a beekeeper in Washington, D.C., and he says caring for bees is one of the most relaxing things in his life.