A cheap and easy method can turn your run-of-the mill headphones into a sensor that plugs into a smartphone to monitor heart rate and do other stuff, too.
Todd Bates-Rutgers •
futurity
March 12, 2021
•
~4 min
Like a chameleon changing color in response to its environment, researchers have found a way to use heat to change the surface structure of liquid metal.
Mike Krapfl-Iowa State •
futurity
Jan. 13, 2020
•
~3 min