A small piece of paper sticks to an electrically charged plastic ruler. The principle of this simple classroom physics experiment is applied at the microscopic scale by so-called optical tweezers to get the likes of polystyrene ...
General Physics
May 8, 2013
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At various points throughout Earth's history, the planet's solid exterior has drifted about in relation to the planetary rotation axis. This solid body drift, which is known as "true polar wander," results in a wholesale ...
Earth Sciences
Oct 11, 2012
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(PhysOrg.com) -- A NASA-led research team has confirmed what Walt Disney told us all along: Earth really is a small world, after all.
Earth Sciences
Aug 16, 2011
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(PhysOrg.com) -- Quantum cryptography, which enables two parties to communicate with each other with unconditional security, has begun to be implemented by some governments, banks, and other corporations with high-security ...
