Latest Introductory physics Stories

2011-12-02 13:20:49

The December GSA TODAY science article, "Unique geologic insights from “non-unique” gravity and magnetic interpretation,” is now online at www.geosociety.org/gsatoday/. All GSA Today articles are open access. In many fields of applied science, such as geology, there are often tensions and disagreements between scientists who specialize in analyses of problems using mathematical models to describe sets of collected data, and those that rely on on-the-ground observations...

2011-04-20 00:00:30

PerpetualGreen's Dynamic EnergySave System increases the effectiveness of all forms of renewable energy by an average of 25%. The Dynamic EnergySave is designed to concurrently integrate several principles of physics, to safely balance the reactive energy of an electrical system to raise the energy efficiency to as close to 98% as possible - at all times. The result is unparalleled efficiency gains coupled with a quick return on investment. Draper, UT (PRWEB) April 18, 2011 PerpetualGreen...

2011-04-01 01:12:47

Completing the story they started by creating synthetic magnetic fields,* scientists from the Joint Quantum Institute (JQI), a collaboration of the National Institute of Standards and Technology (NIST) and the University of Maryland, have now made atoms act as if they were charged particles accelerated by electric fields. Reported in the journal Nature Physics,** these synthetic electric fields make each atom in a gas act, individually, as if it were a charged particle, but collectively they...

2011-02-09 06:45:00

COLUMBUS, Ohio, Feb. 9, 2011 /PRNewswire/ -- Delta Energy Services, an industry-leading provider of energy management services in North America, today announced that it has formed a strategic alliance with Bergen Energi and Comerc Energia. The alliance, known as Energy Experts, was created with the mission to offer a global solution to better serve the energy management and data reporting needs of industrial and commercial clients with facilities around the world. The member companies of...

2011-01-10 06:55:00

GRANTS PASS, Ore., Jan. 10, 2011 /PRNewswire/ -- In "Tidal Forces: A Different Theory," as presented at Caltech to the American Physical Society on Oct. 30, 2010, Roy Masters revisits the theories describing the moon raising the tides by virtue of pull gravity combined with the moon's centripetal angular momentum. Masters shows that if gravity is considered the attractive interaction between individual bodies, then a working moon would have fallen to earth eons ago. Masters, founder of...

2010-11-12 06:00:00

It's an occurrence that happens so fast it cannot be followed by the human eye.  However, researchers at MIT, Virginia Tech and Princeton University announced on Thursday that they have solved the mystery of how cats lap liquids with such elegance. Using high-speed cameras, the researchers found that domestic cats and larger felines like tigers use their tongues to delicately draw up water without breaking the surface of the liquid, harnessing a perfect balance between the physical...

2010-09-01 20:55:08

A new experiment proposed by physicists at the National Institute of Standards and Technology (NIST) may allow researchers to test the effects of gravity with unprecedented precision at very short distances"”a scale at which exotic new details of gravity's behavior may be detectable.Of the four fundamental forces that govern interactions in the universe, gravity may be the most familiar, but ironically it is the least understood by physicists. While gravity's influence is...

2010-08-31 10:15:00

DALLAS, Aug. 31 /PRNewswire/ -- Spot On Energy(TM) announced today an agreement to be placed in 4,000 Circle K convenience stores by the end of 2010. Point of sale placement provides outstanding opportunity for consumers to see and purchase a new item. Spot On Energy(TM) patches are newly released to the retail market. Many health conscious adults need extra energy to survive their hectic lifestyles. Energy drinks, with massive amounts of preservatives, sugar and calories come with...

2010-05-10 12:32:00

ERIE, Pa., May 10 /PRNewswire/ -- Eriez® introduced the remarkable, state-of-the-art, unbelievably powerful P-REX Scrap Drum at the 2010 Scrap Recycling Industry Expo. "The unbeatable separation capabilities P-REX offers will bring more profits to your scrap recycling operation," says Tim Shuttleworth, Eriez President and CEO. "P-REX enables better meatball recovery than ever before thought possible." Engineering breakthroughs give P-REX the advantage in critical...

2010-02-12 08:25:00

Most animals don't think anything of breaking into a run: they switch effortlessly from walking to a high-speed bouncing run. But what about elephants? Their sheer size makes it impossible for them to bounce up in the air at high speeds. So how are high-speed elephants moving: are they running or walking? At a first glance, fast-moving elephants look as if they are walking, according to John Hutchinson from the Royal Veterinary College, UK. But closer analysis of elephant footfall patterns by...

Latest Introductory physics Reference Libraries

2004-10-19 04:45:41

General Relativity -- General Relativity is the common name for the theory of gravitation published by Albert Einstein in 1915. According to general relativity the force of gravity is a manifestation of the local geometry of spacetime. Although the modern theory is due to Einstein, its origins go back to the axioms of Euclidean geometry and the many attempts over the centuries to prove Euclid's fifth postulate, that parallel lines remain always equidistant, culminating with the...

2004-10-19 04:45:41

Escape Velocity -- An escape velocity is the minimum speed at which an object without propulsion can move away from a source of a gravitational field indefinitely if there is no friction. This definition may need modification for the practical problem of two or more sources in some cases. In any case, the object is assumed to be a point with a mass that is negligible compared with that of the source of the field, usually an excellent approximation. It is commonly described as the speed...

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Word of the Day
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'