Pressure
hidePressure (symbol: p or P) is the force per unit area applied in a direction perpendicular to the surface of an object. Gauge pressure is the pressure relative to the local atmospheric or ambient pressure.
For more information about Pressure, read the full article at
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News tagged with pressure
Touchable Hologram Becomes Reality (w/ Video)
Aug 06, 2009 |
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(PhysOrg.com) -- Researchers from the University of Tokyo have developed 3D holograms that can be touched with bare hands. Generally, holograms can't be felt because they're made only of light. But the new ...
Hydrocarbons in the deep Earth?
Space & Earth / Earth Sciences
Jul 26, 2009 |
4.3 / 5 (42) |
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The oil and gas that fuels our homes and cars started out as living organisms that died, were compressed, and heated under heavy layers of sediments in the Earth's crust. Scientists have debated for years ...
Washing away painful wounds
Aug 26, 2009 |
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More than six million people in the U.S. suffer from persistent wounds -- open sores that never seem to heal or, once apparently healed, return with a vengeance. The bedridden elderly and infirm are prone ...
Hidden Territory on Mercury Revealed
Space & Earth / Space Exploration
Nov 04, 2009 |
4.8 / 5 (20) |
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The MESSENGER spacecraft's third flyby of the planet Mercury has given scientists, for the first time, an almost complete view of the planet's surface and revealed some dramatic changes in Mercury's comet-like ...
Two More Earth's Chandler Wobble Jumps Revealed, Last in 2005
Sep 02, 2009 |
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(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, ...
Tiny Music Player Made from Wire Bridge (w/ Video)
Nov 04, 2009 |
4.2 / 5 (18) |
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(PhysOrg.com) -- In 2008, scientists built a loudspeaker made of carbon nanotubes that produced sound and music based on the thermoacoustic effect. Now, a different team of scientists has built a loudspeaker ...
First light for BOSS -- a new kind of search for dark energy
Oct 01, 2009 |
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BOSS, the Baryon Oscillation Spectroscopic Survey, is the most ambitious attempt yet to map the expansion history of the Universe using the technique known as baryon acoustic oscillation (BAO). A part of the ...
Scientists predict greater longevity for planets with life
Space & Earth / Earth Sciences
Jun 13, 2009 |
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Roughly a billion years from now, the ever-increasing radiation from the sun will have heated Earth into inhabitability; the carbon dioxide in the atmosphere that serves as food for plant life will disappear, ...
Anti-aging gene linked to high blood pressure
Aug 19, 2009 |
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Researchers at the University of Oklahoma Health Sciences Center have shown the first link between a newly discovered anti-aging gene and high blood pressure. The results, which appear this month in the journal ...
Europium discovery: New element found to be a superconductor
May 13, 2009 |
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(PhysOrg.com) -- Of the 92 naturally occurring elements, add another to the list of those that are superconductors. James S. Schilling, Ph.D., professor of physics in Arts & Sciences at Washington University ...
Scientists Observe Liquid Water Below Freezing
Jun 24, 2009 |
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(PhysOrg.com) -- Below 0 °C, water turns to ice. But beyond that, or below about -75 °C, the ice may turn back into liquid water. While scientists have previously predicted this phase transition with computer ...
Beetroot juice boosts stamina, new study shows
Aug 06, 2009 |
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(PhysOrg.com) -- Drinking beetroot juice boosts your stamina and could help you exercise for up to 16% longer. A University of Exeter led-study, published today, shows for the first time how the nitrate contained ...
Common virus could cause high blood pressure
May 15, 2009 |
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(PhysOrg.com) -- A new study suggests for the first time that cytomegalovirus (CMV), a common viral infection affecting between 60 and 99 percent of adults worldwide, is a cause of high blood pressure, a leading ...
High fructose corn syrup: A recipe for hypertension
Oct 30, 2009 |
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A diet high in fructose increases the risk of developing high blood pressure (hypertension), according to a paper being presented at the American Society of Nephrology's 42nd Annual Meeting and Scientific Exposition in San ...
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Cosmic archaeology: Astrophysicists use new spectrographs to look far back into the history of the universe
Oct 13, 2009 |
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(PhysOrg.com) -- The distant past of the universe is moving closer. Astronomers are using special spectrographs to investigate galaxies in the depths of the universe as part of the Sloan Digital Sky Survey ...
