Math wars: Debate sparks anti-pi day
(PhysOrg.com) -- A controversial debate in the math world has led to celebrations today by opponents of the mathematical constant pi.
Mathematics
Jun 29, 2011
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Page 37 - News tagged with equator
Genius of Einstein, Fourier key to new humanlike computer vision
(PhysOrg.com) -- Two new techniques for computer-vision technology mimic how humans perceive three-dimensional shapes by instantly recognizing objects no matter how they are twisted or bent, an advance that could help machines ...
Computer Sciences
Jun 20, 2011
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How much do binary stars shape planetary nebulae?
Planetary nebulae come in a dazzling array of shapes, from spherical shells of gas, to blobby structures barely containing symmetry at all. Controversy has surrounded the cause for this diversity. Could it be magnetic fields, ...
Astronomy
Jun 16, 2011
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Dawn spacecraft captures video of asteroid approach (w/ video)
(PhysOrg.com) -- Scientists working with NASA's Dawn spacecraft have created a new video showing the giant asteroid Vesta as the spacecraft approaches this unexplored world in the main asteroid belt.
Space Exploration
Jun 13, 2011
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Rogue wave recreated in laboratory tank
(PhysOrg.com) -- A team of researchers have used a mathematical equation to create a so called "rogue" wave; the giant kind that appear out of nowhere in the open ocean to topple ships and drown their crews. Using one solution ...
New study links ozone hole to climate change all the way to the equator
In a study to be published in the April 21st issue of Science magazine, researchers at Columbia University's School of Engineering and Applied Science report their findings that the ozone hole, which is located over the South ...
Earth Sciences
Apr 21, 2011
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Zoom-up star photos poke holes in century-old astronomical theory
(PhysOrg.com) -- The hottest stars in the universe spin so fast that they get a bit squished at their poles and dimmer around their middle. The 90-year-old theory that predicts the extent of this "gravity darkening" phenomenon ...
Astronomy
Apr 18, 2011
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Huge ocean 'Frisbees' spin off Brazil's coast
As the North Brazil Current (NBC) moves northward along the northeastern coast of Brazil, it draws water from the South Equatorial Current and the freshwater outflow from the Amazon River, providing a source for warm, nutrient-rich ...
Earth Sciences
Mar 21, 2011
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Could the combination of general relativity and quantum mechanics lead to spintronics?
(PhysOrg.com) -- In the early 20th century, two famous discoveries about spin were made. One of them, discovered by Albert Einstein and Wander Johannes de Haas, explains a relationship between the spin of elementary particles. ...
Virtual laboratory predicts train vibrations
The construction of new rail lines, or the relocation of old ones underground, has increased society's interest over recent years in the vibrations produced by trains, especially among people who live or work near the tracks. ...
Computer Sciences
Feb 9, 2011
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