Latest Classical mechanics Stories

2010-03-08 09:35:45

Friction in human relations is all too obvious and prevalent, but friction in physics has had a "secret life" of its own that has now been revealed by scientists at the Hebrew University of Jerusalem. In an article appearing in the journal Nature (with a further reference to it in Nature Physics), the scientists show how frictional strength evolves from extremely short to long time scales. The new information could be useful in assessing a wide range of natural and man-made phenomena "”...

2009-06-23 07:20:00

GARDINER, N.Y., June 23 /PRNewswire/ -- "The Universal Properties of Acceleration: Did Einstein Look the Wrong Way?" (published by AuthorHouse) is about gravity. Author Barry Lebost proposes a new law in physics stating "that all acceleration and its intimate partner inertia have the same general properties everywhere in the universe including the surfaces of planets and stars." Lebost demonstrates that when universal property tests are performed upon the surface of planet Earth, the test...

2009-03-10 09:42:39

The U.S. space agency and Honeywell Inc. say they are launching the 2009 tour of their award-winning hip-hop science education program FMA Live! The traveling science concert will reach more than 17,000 middle-school students during its 10-week, 20 city U.S. tour, the National Aeronautics and Space Administration said. Named for Sir Isaac Newton's second law of motion -- force = mass times acceleration -- FMA Live! uses professional actors, original songs, music videos and interactive science...

2009-01-08 15:05:00

Scientists say they have discovered the mechanism that causes tiny objects to levitate, a discovery that may pave the way for the ability to create nanotechnology machines in the future. The apparent levitation was observed as a result of repulsive force between a thin sheet of silica and a small gold-plated bead, Harvard physicist Federico Capasso and colleagues reported in the journal Nature.This so-called Casimir force of repulsion could be replicated and used to create friction-free parts...

2008-09-27 10:50:00

Base running and base stealing would appear to be arts driven solely by a runner's speed, but there's more than mere gristle, bone and lung power to this facet of baseball "” lots of mathematics and physics are at play. With baseball playoffs heating up and the World Series right around the corner, it's guaranteed that fans will see daring slides, both feet-first and head-first, and even slides on bang-bang plays at first. Who gets there faster, the head-first slider or the...

2008-08-19 18:00:34

The DRX9000 True Non-Surgical Spinal Decompression System(TM) provides relief of pain and symptoms associated with herniated discs, bulging or protruding intervertebral discs, degenerative disc disease, posterior facet syndrome, and sciatica. The therapy is non-invasive and non-surgical. The device is FDA 510(k)-cleared, in compliance with EN 60601-1 and CE-marked, and is manufactured under strict ISO 13485:2003 quality standards. The theory behind non-surgical spinal decompression is a...

2007-05-18 17:00:00

In the folklore of physics, no story is better known than the tale of Galileo dropping balls from the Leaning Tower of Pisa and proving that gravity accelerates all objects equally regardless of their masses or composition. This is called the "equivalence principle," and it is a cornerstone of modern physics. But was Galileo correct? NASA -- Standing on the Moon in 1971, Apollo 15 astronaut Dave Scott held his hands out at shoulder height, a hammer in one hand and a feather in the other. And...

2007-01-12 06:00:00

ST. LOUIS -- The laboratory is cluttered with dirty dishes, Dorito crumbs, aluminum foil and needle-nose pliers _ the detritus of graduate students whose 600-pound steel and wire Tinkertoy is rising in the middle of the room. With the apparatus, Ramanath Cowsik, a Washington University physicist, will poke and prod at some of the most daunting problems remaining in physics: What is causing the universe to fly apart, faster and faster each year? Why is gravity so weak and so different...

2006-10-11 14:33:07

At the core of ESA's LISA Pathfinder mission sit two small hearts. Each is a cube, just 5 centimetres across. Together they will allow LISA Pathfinder to lay the foundations for future space-based measurements that investigate the very core of Einstein's General Relativity. A cornerstone of relativity is the concept of a frame of reference. This is a set of bodies relative to which any motion can be measured. Without a reference frame, no motion through space can be detected. Scientists...

2005-08-26 18:59:28

BERKELEY, CA "“ The Da Vinci Code, the best selling novel and soon-to-be-blockbuster film, may also be linked some day to the solving of a scientific mystery as old as Leonardo Da Vinci himself "” friction. A collaboration of scientists from Lawrence Berkeley National Laboratory (Berkeley Lab) and the Ames Laboratory at Iowa State University have used Da Vinci's principles of friction and the geometric oddities known as quasicrystals to open a new pathway towards a better...

Latest Classical mechanics Reference Libraries

2014-01-12 00:00:00

Physics is a natural science involving the study of matter and its motion through space-time, along with related concepts such as energy and force. On a broader scale, it also involves the general analysis of nature, conducted in order to understand how the universe behaves. Physics is one of the oldest academic disciplines, perhaps the oldest through its inclusion of astronomy. Physics was part of natural philosophy until the Scientific Revolution in the 16th century, when the natural...

2010-10-07 16:05:32

The Seismometer is an instrument designed to measure the motions of the ground. This includes seismic waves generated by earthquakes, nuclear explosions, and other seismic sources. Records of these activities allow seismologists to map the interior of the Earth, and locate and measure the size of the different sources. There are also seismographs, which is sometimes used in place of the word seismometer. However, a seismograph is the older instrument in which the measuring and recording...

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...

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Word of the Day
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.