Discover Thomson Reuters
Researchers use ultrasonic waves to keep a tiny LED floating in mid air while powering it wirelessly through induction. Stuart McDill reports.
01:14
01:41
02:09
01:36
00:48
01:00
01:46
00:49
02:16
01:42
01:33
01:21
01:56
01:08
02:51
00:52
01:32
01:59
02:52
01:20