Engineering

Solar cell keeps working long after sun sets

About 750 million people in the world do not have access to electricity at night. Solar cells provide power during the day, but saving energy for later use requires substantial battery storage.

Hardware

New hardware architecture provides an edge in AI computation

As applications of artificial intelligence spread, more computation has to occur—and more efficiently with lower energy consumption—on local devices instead of in geographically distant data centers in order to overcome ...

Security

US regulators sue firm selling sensitive location data

US regulators on Monday filed a lawsuit to stop data broker Kochava from selling smartphone location information that could help trace visits to "sensitive locations" like reproductive health clinics.

Business

Amazon says it prevented 4 billion bad listings in 2021

Amazon, which has been under increasing pressure to tackle counterfeit products, said in its second-annual report that it prevented 4 billion bad listings from making it onto its site and got rid of more than 3 million phony ...