Renewable energy has become a $220 billion a year industry. But to significantly slow climate change, the power of wind, solar and other renewable sources must vastly expand. Some say the tech breakthroughs needed are on the horizon, though a top economist sees a tougher road ahead.
Forecasters expected the 2013 Atlantic hurricane season to be really busy — the National Oceanic and Atmospheric Administration told Americans to expect between seven and 11 hurricanes. But this year has been one of the quietest on record. Why were the predictions so far off?
Sometimes highway traffic jams up for no apparent reason. There's no accident, and no real reason to step on the brakes — except to avoid hitting the car in front of you. What causes these backups? An MIT scientist thinks he's found a way to prevent these tie-ups.
Most of ISON, a huge comet formed at the birth of the solar system, apparently did not survive Thursday's encounter with the sun, NASA said. Scientists detected the comet last year and had hoped to continue studying it for information to be mined from its "primordial ices."
Scientists have identified special cells in the brain's hippocampus that mimic a trick of some digital cameras. These cells automatically 'tag' the memory of each event in our lives with information about where that event took place — the better to recall, perhaps, where we left our lost keys.
Today's a day to share, so that's why I want to share this moment: Two girls are on a city street, trying to figure out who's going to be friends with the nastiest person they can think of. Not an easy problem, but they solve it. Gorgeously.
For a class project, three engineering students at Rice University devised an inexpensive robotic arm to help a teenager with an uncommon bone disease. The work took two years to complete, far longer than the class that was its starting point.
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