Energy & Green Tech

Researchers develop a cobalt-free cathode for lithium-ion batteries

Researchers at the University of California, Irvine and four national laboratories have devised a way to make lithium-ion battery cathodes without using cobalt, a mineral plagued by price volatility and geopolitical complications.

Security

Hacker claims to breach Uber, security researcher says

Uber said Thursday that it reached out to law enforcement after a hacker apparently breached its network. A security engineer said the intruder provided evidence of obtaining access to crucial systems at the ride-hailing ...

Other

Bill Gates: Technological innovation would help solve hunger

Bill Gates says the global hunger crisis is so immense that food aid cannot fully address the problem. What's also needed, Gates argues, are the kinds of innovations in farming technology that he has long funded to try to ...

Energy & Green Tech

Soaking up the sun with artificial intelligence

The sun continuously transmits trillions of watts of energy to the Earth. It will be doing so for billions more years. Yet, we have only just begun tapping into that abundant, renewable source of energy at affordable cost.

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