News tagged with measurement results
Bright idea illuminates LED standards
Nov 25, 2008 |
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The lack of common measurement methods among light-emitting diode (LED) and lighting manufacturers has affected the commercialization of solid-state lighting products. In a recent paper, researchers at the National Institute ...
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Quantum paradox directly observed -- a milestone in quantum mechanics
Mar 04, 2009 |
4.1 / 5 (35) |
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In quantum mechanics, a vanguard of physics where science often merges into philosophy, much of our understanding is based on conjecture and probabilities, but a group of researchers in Japan has moved one ...
Measuring distances in microseconds
Nov 05, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- Standard laser devices are fast enough for measuring the size of a room, but they need to be faster for outdoor mobile applications. Researchers have brought these scanners up to speed -- ...
Physicists make discovery in quantum mechanics
Sep 23, 2009 |
4.3 / 5 (27) |
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(Santa Barbara, Calif.) -- Physicists at UC Santa Barbara have made an important advance in quantum mechanics using a superconducting electrical circuit. The finding is reported in this week's issue of the journal Nature.
Precision measurement of W boson mass portends stricter limits for Higgs particle
Mar 11, 2009 |
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(PhysOrg.com) -- Scientists of the DZero collaboration at the Department of Energy's Fermi National Accelerator Laboratory have achieved the world's most precise measurement of the mass of the W boson by a ...
Atomic fountain clocks are becoming still more stable
Mar 18, 2009 |
4 / 5 (1) |
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They are at present the most accurate clocks in the world: Caesium fountain clocks furnish the second accurate to 15 places after the decimal point. Until they reach this accuracy, caesium fountain clocks, however, need a ...
Widely used body fat measurements overestimate fatness in blacks
Jun 11, 2009 |
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The body mass index (BMI) and waistline measurement overestimate obesity in blacks, according to a new study. The results suggest that conventional methods for estimating body fat may need to become race-specific.
Too many ways to say 'it hurts'
Jul 29, 2009 |
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There are at least 100 ways to say, "It hurts!" And that is the problem.
Behind closed eyes
Feb 04, 2009 |
4 / 5 (3) |
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Even when our eyes are closed, the visual centers in our brain are humming with activity. Weizmann Institute scientists and others have shown in the last few years that the magnitude of sense-related activity in a brain that's ...
It's Easier to Observe the Failure of Local Realism than Previously Thought
Mar 04, 2009 |
4.3 / 5 (41) |
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(PhysOrg.com) -- Local realism is something we live with every day, even if we don’t realize it. The principle of local realism combines two assumptions: locality and realism. Locality says that distant objects cannot directly ...
Penetrating insights: NIST airframe tests help ensure better shielding for flight instruments
Aug 26, 2009 |
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Airline travelers are used to being instructed to turn off computers and cell phones during takeoffs and landings as a precaution against interfering with the plane’s navigational equipment, but outside sources ...
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