News tagged with energy star
Gravity might amplify quantum fluctuations, create astrophysical objects
(PhysOrg.com) -- In a new study, physicists have proposed that gravity could trigger a runaway effect in quantum fluctuations, causing them to grow so large that the quantum field’s vacuum energy density could dominate its ...
May 17, 2010 |
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First stars in universe were not alone
The first stars in the universe were not as solitary as previously thought. In fact, they could have formed alongside numerous companions when the gas disks that surrounded them broke up during formation, ...
Feb 04, 2011 |
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Cosmology's best standard candles get even better
Members of the international Nearby Supernova Factory (SNfactory), a collaboration among the U.S. Department of Energy's Lawrence Berkeley National Laboratory, a consortium of French laboratories, and Yale ...
May 18, 2009 |
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Queen's astronomers propose new supernova interpretation
In a controversial new paper in the journal Nature, astronomers from Queen's University Belfast have proposed a new physical interpretation of a supernova discovered on 7th November 2008.
Jun 09, 2009 |
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Tycho's supernova remnant: New evidence on origin of supernovas found
(PhysOrg.com) -- Astronomers may now know the cause of an historic supernova explosion that is an important type of object for investigating dark energy in the universe. The discovery, made using NASA's Chandra ...
Apr 26, 2011 |
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Origin of Key Cosmic Explosions Still a Mystery
(PhysOrg.com) -- When a star explodes as a supernova, it shines so brightly that it can be seen from millions of light-years away. One particular supernova variety - Type Ia - brightens and dims so predictably ...
Jul 12, 2010 |
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Europe's 'Big Bang' observatory completes cosmic survey
A 900-million-dollar orbital observatory has completed the biggest-ever search for remnants of the "Big Bang" that created the Universe, the European Space Agency said on Monday.
Space & Earth / Space Exploration
Jan 16, 2012 |
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Could a 'Death Star' really destroy a planet?
Countless Sci-Fi fans vividly remember the famous scene in Star Wars in which the Death Star obliterates the planet Alderaan.
Jan 19, 2012 |
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Cygnus X-1: Still a 'Star' After All Those Years
Since its discovery 45 years ago, Cygnus X-1 has been one of the most intensively studied cosmic X-ray sources. About a decade after its discovery, Cygnus X-1 secured a place in the history of astronomy when ...
Aug 28, 2009 |
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High-energy surprises found in 'constant' Crab Nebula (w/ Video)
(PhysOrg.com) -- The combined data from several NASA satellites has astonished astronomers by revealing unexpected changes in X-ray emission from the Crab Nebula, once thought to be the steadiest high-energy ...
Jan 13, 2011 |
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Scientists reveal Milky Way's magnetic attraction
(PhysOrg.com) -- An international research project involving the University of Adelaide has revealed that the magnetic field in the centre of the Milky Way is at least 10 times stronger than the rest of the ...
Jan 06, 2010 |
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Yes you can build a low-cost 'green' house
The greenest house in Lewis County, Ky., is a pleasant shade of blue -- and a model for future low-income housing. It is LEED-certified by the U.S. Green Building Council, which means it is an energy-efficient, durable ...
Technology / Energy & Green Tech
Sep 07, 2010 |
5 / 5 (8) |
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Astrophysics and extinctions: News about planet-threatening events
Space is a violent place. If a star explodes or black holes collide anywhere in our part of the Milky Way, they'd give off colossal blasts of lethal gamma-rays, X-rays and cosmic rays and it's perfectly reasonable to expect ...
Space & Earth / Space Exploration
Oct 07, 2011 |
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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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Swift finds a gamma-ray burst with a dual personality (w/ video)
(PhysOrg.com) -- A peculiar cosmic explosion first detected by NASA's Swift observatory on Christmas Day 2010 was caused either by a novel type of supernova located billions of light-years away or an unusual ...
Nov 30, 2011 |
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Energy Star
ENERGY STAR is an international standard for energy efficient consumer products. It was first created as a United States government program in 1992, but Australia, Canada, Japan, New Zealand, Taiwan and the European Union have also adopted the program. Devices carrying the Energy Star logo, such as computer products and peripherals, kitchen appliances, buildings and other products, save 20%-30% on average. However, many European-targeted products are labeled using a different standard, TCO Certification, a combined energy usage and ergonomics rating from the Swedish Confederation of Professional Employees (TCO) instead of Energy Star.
For more information about Energy Star, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
