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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(Phys.org)—Though the search for planets around other stars, or exoplanets, is showing researchers that planets are abundant in our galaxy, it helps a great deal to have directions when searching for as-of-yet undiscovered ...
Astronomy
Nov 13, 2012
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(Phys.org)—Astronomers using the NASA/ESA Hubble Space Telescope have studied a giant filament of dark matter in 3D for the first time. Extending 60 million light-years from one of the most massive galaxy clusters known, ...
Astronomy
Oct 16, 2012
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(PhysOrg.com) -- Until now, it has stubbornly defied all attempts at detection: according to current textbooks, gas-phase carbonic acid should not exist at all, because it immediately decomposes into water and carbon dioxide ...
Analytical Chemistry
Dec 24, 2010
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Last week, NASA and other agencies announced results from instruments aboard three different spacecraft which all indicate that there is water present in the surface soil, or regolith, of the moon. Although the amount is ...
Space Exploration
Sep 30, 2009
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