The small town of Rjukan has long had to make do without sunlight during the cold Norwegian winters.
But that changed Wednesday, when the town debuted a system of high-tech mirrors to reflect sunlight from neighboring peaks into the valley below.
Rjukan, originally founded 100 years ago as an industrial outpost for the energy company Norsk Hydro, is nestled between several mountains and does not receive direct sunlight from late September to mid-March — nearly six months out of the year.
Originally published on Mon November 4, 2013 4:02 pm
When Mike Napoli got up to bat in Game 6 of the World Series, my first thought was, "Oh my goodness, that beard is awful." But after the Red Sox's first baseman laid off a few bad pitches, I started liking the hair on his chin.
All that got me thinking about beards.
Sometime during evolution women lost their facial hair. This strong difference between the sexes implies that facial furriness, or the lack thereof, has played a role in how we picked our partners, at least at one point in human history.
Originally published on Mon November 4, 2013 9:14 am
By Alva Noë
Education is necessary if democracy is to flourish. What good is the free flow of information if people can't make sense of it? How can you vote your own interests if you don't understand the consequences of policy choices? How can you know what's best for you or your community?
Retired astronaut Chris Hadfield, author of the new book An Astronaut's Guide to Life on Earth, has flown three space missions, including 144 days on the International Space Station. Hadfield talks about life in zero gravity, his one fear while in orbit, and how he went from test pilot to astronaut.
This is SCIENCE FRIDAY. I'm Ira Flatow. When you think about Albert Einstein, the words E=MC squared and Theory of Relativity naturally come to mind. But Einstein did not win his Nobel Prize for that work. Instead, he won the prize for figuring out how light interacts with objects and for believing, when almost no one else did, that light and energy are carried as discreet packets called quanta.
Digital cameras are ubiquitous today — even $20 cell phones have them built in. But few people actually know how a digital camera works. Shree Nayar, a computer scientist at Columbia University, set out to change that with his Bigshot Do-It-Yourself Digital Camera kit, which gives tinkerers a view of a camera's anatomy.
A year after Hurricane Sandy, recovery efforts are still ongoing, and questions remain about how to rebuild and prepare the coastlines for the next storm. A group of experts discusses rebuilding and protective options — from sea walls to "oyster-tecture" — and considers calls for a "managed retreat" from the shore.