Communicating underwater is challenging. Light and odors don’t travel well, but sound moves about four times faster in water than in air — which means marine mammals often use sounds to communicate.
Humans know the surprising prick of a needle, the searing pain of a stubbed toe, and the throbbing of a toothache. We can identify many types of pain and have multiple ways of treating it — but what about other species?
After years of unsuccessful attempts at in vitro fertilization, a healthy baby girl was born to an infertile Ukrainian couple using DNA from three people.
Engineers at MIT have found a way to prevent hydrogels from dehydrating.
“Cloaking” or invisibility technology is a kind of scientific Holy Grail; but actually concealing objects in direct light is notoriously difficult.
Should you stop using hand sanitizer?