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NPR

U.S. Military Boosts Clean Energy, With Startup Help

Fuel convoys are expensive and dangerous, pushing the military to seek out new energy sources. That frequently pairs them with alternative energy startups, which some call risky ventures. For the companies themselves, the chance to work with the military means more investment and a chance to expand.
NPR

Post Your Pictures, Then Take A Walk Through History

The website Historypin is like a photographic trip down memory lane.
NPR

Old-Time Radio Fans Sign Off

After 36 years, the annual Friends of Old-Time Radio Convention will go silent. Radio dramas don't have the audiences they once had, losing out to other distractions. Listeners can still tap into the rich catalogue of The Lone Ranger, Sherlock Holmes and many others via the Internet, though, so the work lives on. Scott Gurian spent time with the group on their last day.
NPR

Homemade Computer Sets Records In The Trillions

Shigeru Kondo is 56 and has already twice set the record for the most digits of pi calculated. His most recent record, 10 trillion digits, took a year to complete on his home-built supercomputer. Host Audi Cornish found out more about the computer, which caused a little family strife because it had to share electricity.
NPR

Self-Starters Eat Up This Slow-Cooking Technique

Sous vide cooking was once the province of chefs at fancy restaurants — and those home cooks willing to shell out close to $1,000 for a water oven. Now, do-it-yourselfers are making their own, inexpensive sous vide cooking rigs, and they're not afraid to brag about the scrumptious product.
NPR

It's A Girl! The New iPhone Speaks

Siri is the name of a new talking virtual assistant feature on the latest iPhone that can tell you when you have an appointment, where to find a Thai restaurant, and what the pollen count will be. Why are the voices that emanate from our machines so often female?
NPR

Will Smartphones And iPads Mush My Toddler's Brain?

Research suggests that toddlers under 2 don't learn from television — and in fact, TV viewing, even in the background, could harm their development. But what about content on mobile screens? The answer may depend on how you're using them.
NPR

New Camera Focuses Shot After It's Taken

Autofocus cameras hit the stores back in the 1970s, making it dramatically simpler for the average consumer to get a good shot. Later, the digital camera made it possible for just about anyone to process their own pictures at home on a computer. Now comes a camera that could represent another kind of photography revolution: the light field camera. Take the picture, but focus it afterward. Robert Siegel speaks with Lytro founder Ren Ng about the new light field camera that his company is producing.
NPR

Predicting When Space Junk Will Come Home To Earth

This weekend, a defunct German satellite is scheduled to crash to Earth, just a month after a NASA satellite did the same. NASA orbital debris scientist Mark Matney and Phil Plait, author of the Bad Astronomy blog, discuss whether engineers on Earth have any say when--or where--objects fall.

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