Chinese Ambassador ‘Likes’ an X-Rated Video. Awkward.

Using recycled cathodes makes better lithium batteries, study finds

Enlarge (credit: Aurich Lawson | Getty Images ) The problem of what to do with old batteries is bound to come up in most any discussion about the pros and cons of electric cars. Most people’s first preference is to reuse them , repurposing the cells for a second life as stationary storage. But at […]

Narwhal tusks tell a troubling tale

Enlarge (credit: Science & Society Picture Library | Getty Images) Researchers have long debated what the 10-foot-long tooth that erupts from a narwhal’s head is actually for. Perhaps it has something to do with sexual selection, and males with longer horns attract more females. Or maybe the things sense salinity. Or perhaps a narwhal uses […]

Facebook advertisers are panicking after iOS cuts off key tracking data

Enlarge Facebook’s ability to track users and show them certain ads appears to be tanking thanks to Apple’s “ask not to track” feature, according to some advertisers. Apple rolled out the privacy prompt in late April with iOS 14. 5. Since then, nearly half of all iOS devices worldwide have at least version 14. 5 […]