News tagged with rotation
Challenge theoretical models, Crab pulsar beams most energetic gamma rays ever detected from a pulsar
A thousand years ago, a brilliant beacon of light blazed in the sky, shining brightly enough to be seen even in daytime for almost a month. Native American and Chinese observers recorded the eye-catching event. ...
Oct 06, 2011 |
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Carbon nanotube muscles generate giant twist for novel motors
New artificial muscles that twist like the trunk of an elephant, but provide a thousand times higher rotation per length, were announced on Oct. 13 for a publication in Science magazine by a team of resear ...
Oct 13, 2011 |
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Gas rich galaxies confirm prediction of modified gravity theory
(PhysOrg.com) -- Recent data for gas rich galaxies precisely match predictions of a modified theory of gravity know as MOND according to a new analysis by University of Maryland Astronomy Professor Stacy McGaugh. ...
Feb 23, 2011 |
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Turning Planetary Theory Upside Down (w/ Video)
(PhysOrg.com) -- The discovery of nine new transiting exoplanets is announced today at the RAS National Astronomy Meeting. When these new results were combined with earlier observations of transiting exoplanets ...
Apr 13, 2010 |
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Researchers discover why atoms in solids show a preference for certain structures
(PhysOrg.com) -- Nature likes some symmetries, but dislikes others. Ordered solids often display a so-called 6-fold rotation symmetry. To achieve this kind of symmetry, the atoms in a plane surround themselves ...
Mar 30, 2010 |
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See how they grow: Monitoring single bacteria without a microscope
(PhysOrg.com) -- With an invention that can be made from some of the same parts used in CD players, University of Michigan researchers have developed a way to measure the growth and drug susceptibility of ...
Chemistry / Analytical Chemistry
Jan 17, 2011 |
4.9 / 5 (8) |
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Two More Earth's Chandler Wobble Jumps Revealed, Last in 2005
(PhysOrg.com) -- The Chandler Wobble is a small variation in the rotation of the Earth on its axis. It has been known for some time that the phase of the Chandler Wobble jumped by 180 degrees in the 1920s, ...
Sep 02, 2009 |
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Could Venus be shifting gear?
(PhysOrg.com) -- ESA’s Venus Express spacecraft has discovered that our cloud-covered neighbour spins a little slower than previously measured. Peering through the dense atmosphere in the infrared, the ...
Space & Earth / Space Exploration
Feb 10, 2012 |
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Stellar astrophysics explains the behavior of fast rotating neutron stars in binary systems
Pulsars are among the most exotic celestial bodies known. They have diameters of about 20 kilometres, but at the same time roughly the mass of our sun. A sugar-cube sized piece of its ultra-compact matter ...
Feb 02, 2012 |
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Scientists sequence soybean genome, reveal pathways for improving biodiesel
Soybean, one of the most important global sources of protein and oil, is now the first legume species with a published complete draft genome sequence. The sequence and its analysis appear in the January 14 ...
Jan 13, 2010 |
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Nano-sized light mill drives micro-sized disk (w/ Video)
While those wonderful light sabers in the Star Wars films remain the figment of George Lucas' fertile imagination, light mills - rotary motors driven by light - that can power objects thousands of times greater ...
Jul 05, 2010 |
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Tiny Train Model May be World's Smallest (w/ Video)
(PhysOrg.com) -- David Smith, who has been building model railroads since 1965, has always had a preference for the smaller scale train models. His most recent project is a five-car train that runs through ...
Oct 26, 2009 |
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Long debate ended over cause, demise of ice ages -- may also help predict future
Researchers have largely put to rest a long debate on the underlying mechanism that has caused periodic ice ages on Earth for the past 2.5 million years - they are ultimately linked to slight shifts in solar radiation caused ...
Space & Earth / Earth Sciences
Aug 06, 2009 |
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Loss of planetary tilt could doom alien life
Although winter now grips much of the Northern Hemisphere, those who dislike the cold weather can rest assured that warmer months shall return. This familiar pattern of spring, summer, fall and winter does ...
Jan 12, 2012 |
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Oddball stars explained
(PhysOrg.com) -- New observations solve longstanding mystery of tipped rotation. In addition to shedding light on how binary stars form, the explanation knocks down a possible challenge to Einstein's theory ...
Sep 17, 2009 |
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