In nature, waves – such as those in the ocean – begin as local oscillations in the water that spread out, ripple fashion, from their point of origin. But fans of Star Trek will recall a different sort of wave pattern: ...
General Physics
Oct 1, 2014
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Physicists at The Australian National University (ANU) have created a tractor beam on water, providing a radical new technique that could confine oil spills, manipulate floating objects or explain rips at the beach.
General Physics
Aug 10, 2014
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(Phys.org) —A team of researchers with members from the U.K., Scotland and the U.S. has built a functioning acoustic tractor beam in a lab—one that is able to pull objects of centimeter size. In their paper published ...
Imagine, if you will, a tractor pulling a fertilizer wagon travelling at 8 to 9 mph along a field of thousands of sorghum test plants.
Biotechnology
Feb 28, 2014
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Grocery merchants in Texas, California and New York will soon have ice cream, frozen foods and fresh produce delivered by tractor trailers whose refrigeration units are powered by fuel cells, a clean technology that makes ...
Energy & Green Tech
Aug 23, 2013
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A robotic tractor and seeding machine with unprecedented planting accuracy will improve agricultural productivity for farmers and enable cropping on 20% more land, UNSW inventors say.
Robotics
Jun 5, 2013
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British explorer Ranulph Fiennes showed off a heavily bandaged hand as he returned home Monday following his evacuation from Antarctica with severe frostbite, and vowed to help the team he left out there.
Earth Sciences
Mar 4, 2013
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(Phys.org)—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.
General Physics
Jan 25, 2013
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(Phys.org)—New York University physicists have created a tractor beam capable of pulling particles micrometers in size. This so-called optical conveyor tractor beam, reported in the journal Physical Review Letters, has ...
General Physics
Nov 15, 2012
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(Phys.org)—David Ruffner and David Grier of New York University have developed a technique for using Bessel beams to draw a particle toward a source. In their paper published in Physical Review Letters they describe how ...
