Nothing beats the smell of a live Christmas tree in your home, but how can you keep the needles on your tree and off your carpet? Rick Bates, professor of horticulture at Penn State University, offers tips for how to properly care for your Christmas tree this holiday season.
Up next, what is intelligence? What is thought? What does it really mean to have a mind? And if we can answer those questions, is it possible for people to reverse-engineer the process and build an artificial mind? Sure, there are things like Siri, which can understand enough of your question to pull up directions to the restaurant, and there's IBM's Watson, which took on human contestants in a game of "Jeopardy!" and won. But how to jump the gap from those to something everyone would agree is truly intelligent?
This is SCIENCE FRIDAY, I'm Ira Flatow. Of course we'll be keeping you up to date this hour on the shooting spree that's been going on in Newtown, Connecticut. But first something different. When Alan Alda was 11, he asked one of his teachers: What is a flame? The answer he got back was oxidation. Accurate, yeah, but not very helpful.
Originally published on Mon December 17, 2012 10:02 pm
Though we hear about them every holiday season in that famous song, chestnuts – whether roasting on an open fire or otherwise – have been noticeably absent from many American tables for decades, thanks to a deadly fungus that decimated the species near half a century ago. But a small army of determined growers have been on a seemingly quixotic quest to put chestnuts back on the American table, and they're just starting to see results.
There are more species of insects than pretty much anything else in the world. And scientists know there are millions they haven't even identified yet. Now, in a tropical rainforest in Panama, a multinational team of scientists has just completed the first ever insect census.
Scott Miller, an entomologist at the Smithsonian who worked on the Panama, shows off one of the species from the survey that's at the National Museum of Natural History's insect zoo in Washington, D.C.
This picture received from North Korea's official Korean Central News Agency on Wednesday shows an orbit image of the satellite Kwangmyongsong-3, being monitored on a large screen at a satellite control center in Cholsan county, North Pyongan province in North Korea.
Credit AFP/Getty Images
Sputnik 1 just beeped. China's first satellite, launched more than a decade later, simply radioed a communist anthem back to Earth. So far, North Korea's first satellite appears to be less accomplished.
And that shouldn't be a surprise.
Given the history of first orbital space shots, North Korea's apparent struggle with its mission is fairly typical, says David Akin, an associate professor of aerospace engineering at the University of Maryland.
Originally published on Fri December 14, 2012 5:50 pm
Maybe you can find that creative spark out in Zion National Park in southwestern Utah.
Credit Jeff Turner / Wikimedia Commons
Want to be more creative? Drop that iPad and head to the great outdoors.
That's the word from David Strayer, a cognitive neuroscientist who studies multitasking at the University of Utah. He knew that every time he went into the southern Utah desert, far from cellular service, he started to think more clearly.
But he wanted to know if others had the same experience.
Of the 100 "top science stories for 2012" chosen by Discover Magazine, I am most fascinated by #42: "The Myth of Choosy Women, Promiscuous Men." It reports a serious challenge to an experiment that has remained a touchstone in evolutionary biology for over 50 years.
I'm Michel Martin and this is TELL ME MORE from NPR News. Coming up, those apps you've been downloading to keep the kids occupied during car rides and sports practices? It turns out, according to federal regulators, they are collecting all kinds of information that they aren't telling you about. So we will. In a few minutes.