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Decisions about future energy sources will need to factor in water consumption as well as greenhouse-gas emissions.
High-powered handsets offer few advantages for the developing world.
How to spot emerging technologies that will change the world.
Metals crucial to electronics are in short supply, and so are the skills needed to solve the problem.
A hackable camera opens new possibilities for digital photos.
Google’s self-driving car.
A biotech executive explains her innovative business model for funding diagnostic tests in poor countries.
SpaceX wants to become the commercial heir to NASA.
Smart phones are surging in popularity and may come to dominate consumer electronics.
Putting a computer on Jeopardy! warps the public understanding of what artificial intelligence is and how science is done.
It’s time to consider price when evaluating new drugs.
Applications that overlay information on smart-phone screen views will change the way we interact with the world around us.
First speedy transistors made from an ultrathin material.
Researchers have found a way to watch for spies in the cloud.
An implanted sensor significantly reduces hospitalization rates for heart-failure patients.
Questions about the merits of the space shuttle are older than the program itself.