ZME Science on MSN

Scientists built tiny drones that fly using sound instead of motors

A flying machine weighing less than a grain of sand has lifted off without carrying a conventional motor, gears, or onboard ...
CNN

7 of the best sound machines for quieting sleep distractions, according to sleep experts

“The sound machine can generate any of several types of sound, from nature [or] music,” Dr. Cory Portnuff, an audiologist at the University of Colorado Health’s Hearing and Balance Clinic, says. In ...