Researchers built world’s first sonic tractor beam
Q. Researchers have discovered which scientific innovation on 28th October 2015?- Published on 29 Oct 15a. World’s first sonic tractor beam
b. World’s first ultrasonic tractor
c. World’s first acoustic tractor
d. None of the above
ANSWER: World’s first sonic tractor beam
Scientists have built the world’s first sonic tractor beam which can lift and move objects through sound waves. These beams are rays which can take on and lift objects. This concept has been used by science fiction writers and programmes such as Star Trek apart from interesting scientists and engineers. This working tractor beam uses high amplitude sound waves for generating acoustic hologram to pick and move small objects.
