Australian archaeologists using remote-sensing technology have uncovered an ancient city in Cambodia that has remained hidden for more than a millennium under dense jungle undergrowth.
The discovery of Mahendraparvata, a 1,200-year-old lost city that predates Cambodia's famous Angkor Wat temple complex by 350 years, was part of the Hindu-Buddhist Khmer Empire that ruled much of Southeast Asia from about 800 to 1400 A.D., during a time that coincided with Europe's Middle Ages.
Originally published on Mon June 17, 2013 12:54 pm
The diet world has a new golden child: green coffee extract.
A "miracle fat burner!" "One of the most important discoveries made" in weight loss science, the heart surgeon Dr. Mehmet Oz said about the little pills — which are produced by grinding up raw, unroasted coffee, and then soaking the result in alcohol to pull out the antioxidants.
We are broadcasting today from the Pacific Science Center in Seattle. And just steps away from this building, right outside is something that should be familiar to anyone who's ever received a postcard from Seattle or taken home a pen or a glass or anything tchotchke of any kind. And it's the Space Needle, built in connection with the 1962 World's Fair. It is an iconic part of the Seattle skyline.
This is SCIENCE FRIDAY. I'm Ira Flatow. Yesterday, the Supreme Court ruled that human genes cannot be patented. The case involves a dispute over patents held on the BRCA1 and the BRCA2 genes, the so-called breast cancer genes; and tests a company, Myriad Genetics, used to look for mutations to those genes.
Anyone who has taken some time on Earth Day to contemplate the planet has my next guest to thank. Danis Hayes was the first national coordinator for Earth Day back in 1970, and if I might insert a personal note, Earth Day back in 1970 was also the anniversary of my first science story I ever did. So this is very interesting, and I'm very happy to have as my guest today Denis Hayes, who is, and as I say, he's head of the Solar Energy Research Institute under President Jimmy Carter.
Think for a minute about the victims of climate change. You might envision the polar bear, right? You see a lot of that in the news, atop a block of melting ice or - where there's no ice to grab onto, or the great ice sheet covering Greenland drip, drip, dripping away, or the tiny island of Tuvalu whose people and beaches might soon be swallowed by rising seas.
This is SCIENCE FRIDAY, I'm Ira Flatow. He's been called Mayor McSchwinn for riding his bicycle to work. He's pledged to turn his town of Seattle into a model for what one city can do to lower its carbon footprint, and for good reason. As the climate changes, coastal cities like Seattle are challenged by rising sea levels.
This is SCIENCE FRIDAY. I'm Ira Flatow. Your brain has nearly 100 billion neurons, and one of my next guests compares that complexity to the Amazon rainforest. In fact, he says there about as many trees in the Amazon as there are neurons in your brain. Think about what the Amazon looks like for a second.
Look through a series of 15th-century woodcuts, and you'll find that the leper is as much an icon of medieval art as the crown or the cross.
Leprosy was so common in Europe during the Middle Ages that it's estimated 1 in 30 people was infected with the bacteria. But by the turn of the 16th century, after the Crusades had swept across Europe, the disease mysteriously disappeared. And it never returned.
This left scientists puzzled. Did the bacteria mutate to become less harmful, or did Europeans become resistant to the germs?
We've all seen a flock of birds shift direction instantaneously mid-flight, or a school of fish swirl in what looked like tightly choreographed maneuvers. That's called collective behavior and it fascinated and baffled scientists. Why do they do it? How? Telepathy? Now technology is revolutionizing the way researchers can track, visualize and even create swarms, and what they're finding will make you go wow.
Originally published on Thu June 13, 2013 12:54 pm
A trio of Chinese astronauts has successfully docked with the Tiangong-1 space laboratory for what's expected to be a total of 15 days in orbit — the longest mission to date for China's burgeoning manned space program.
A once-a-day pill has been proven to lower the risk of getting HIV among needle-using drug addicts, just as it does among heterosexual couples and men who have sex with men.
Among 2,400 injecting drug users in Bangkok, those assigned to take a daily dose of an antiviral drug Viread, or tenofovir generically, had half the risk of getting HIV over a four-year period as those who took a placebo pill. Among those who took tenofovir faithfully, there were 74 percent fewer infections.
What is it about dolphins? They have very, very big brains, and that makes we humans, whose brains are nothing to sniff at, nervous. We don't know what to make of them.
The latest example: On May 17 in India, the Ministry of Environment and Forests issued an order to all Indian states banning dolphin amusement parks. No leaping out of pools to catch balls, no jumping through hoops. Forcing dolphins to entertain humans, the ministry said, was morally unacceptable.