Traditional hearing aids can be too expensive for many people. But a new type that uses Bluetooth technology costs only about $300. The company that makes the new devices aims to reach millions of people around the world who need hearing aids but have trouble paying for them.
Many violent crimes are hastily planned and poorly considered, researchers at the University of Chicago's Crime Lab find. Training troubled teens to slow down and put a more benign spin on what they imagine the other guy is thinking significantly reduced the kids' likelihood of committing a crime.
This week President Obama announced his plan to tackle climate change, including proposals to regulate gas and coal emissions, and brace the nation for rising seas. David Roberts, who covers energy and climate change for Grist.org, talks about what to expect from the plan — and how much the president can accomplish without the help of Congress.
The Advanced Research Projects Agency-Energy, or ARPA-E, backs energy technologies that are too risky for investors, but offer a potentially huge payoff — if they work. The agency has gambled on flywheels, compressed air energy storage, lithium-air batteries, even wind-energy kites.
Synthetic biologist Jay Keasling has already taught yeast to make the leading anti-malarial drug. His next project takes the technology a step further, using yeast to turn plant waste into diesel — and maybe gasoline and jet fuel, too.
NASA has a plan to fend off giant asteroids, but what about tsunamis, earthquakes, storms that last 45 days and mammoth floods? Earth scientists say science-based strategies can help communities prepare for the worst of the worst.
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