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* Laser beam moves particles
* Forces them up hollow tube
* Won't work in space
AUSTRALIAN students have invented a tractor beam.
FOX News reports that students from the Australian National University have succeeded in moving particles a metre-and-a-half using only the power of light.
Very tiny particles, admittedly, but particles nonetheless.
ANU researcher Andrei Rhode said the device shines a hollow laser beam around tiny glass particles.
The laser heats the area around the particles, but the particles stay cool and start drifting.
Read more: www.ne...