Star Trek Becomes Reality - Scientists Create 'Tractor Beam'

A team of scientists from Scotland and the Czech Republic has created a real-life “tractor” beam, as featured in the Star Trek movies, which for the first time allows a beam of light to attract objects.

This has been achieved by researchers from the University of St Andrews and the Institute of Scientific Instruments (ISI) in the Czech Republic through successfully reversing the radiation pressure of light, albeit on a microscopic level. Normally when matter and light interact the solid object is pushed by the light and carried away in the stream of photons. This was first discovered by Johanes Kepler, when observing that tails of comets point away from the sun.


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