The idea is reminiscent of the spaceship Enterprise from “Star Trek”: Chinese researchers have managed to create a kind of “tractor beam” using a laser. It attracts macroscopic objects and is based on the physical principles that solar sails use to propel space probes.
What is called a “tractor beam” in the science fiction world of “Star Trek” is called “optical tweezers” or “optical trap” in the world of physics. For example, the laser-based technology is used by researchers to move small particles such as atoms or cells – things that can only be seen under a microscope. Researchers at Qingdao University of Science and Technology in China have now succeeded for the first time in moving a larger object.
Source: Krone
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