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Latest Introductory physics Stories

Heisenberg's Hunch Was Correct
2013-10-18 08:20:15

John P. Millis, PhD for redOrbit.com - Your Universe Online Students of physics are almost universally perplexed when they are first exposed to the paradoxical world of quantum mechanics. The reason the field is so difficult to wrap one’s mind around is that the behavior of quantum systems is fundamentally different from the macroscopic world in which we spend our lives. One of the guiding principles of the quantum world is a set of statements known as Heisenberg's error-disturbance...

2013-09-24 13:16:54

Promising candidate for information processing with magnetic molecules Magnetic molecules are regarded as promising functional units for the future of information processing. An interdisciplinary team of researchers from Jülich and Aachen were the first to produce particularly robust magnetic molecules that enable a direct electrical readout of magnetic information. This was made possible by selecting the rare earth metal neodymium as the central building block of the molecule. The team's...

Beam Me Up Scotty: Physicists Calculate Energy Needed For Teleportation
2013-07-30 13:53:26

Lee Rannals for redOrbit.com - Your Universe Online Physics students have determined what energy it would take in order for the fictional Star Trek character Scotty to beam up Captain Kirk. Four University of Leicester physics students published a paper in the School's Journal of Physics Special Topics explaining that the energy required to teleport one person is shown to be dependent on bandwidth, meaning a decrease in time creates an increase in power consumption. In order for a...

Quantum Tunneling Is The Secret To Alcohol Reactions In Space
2013-06-30 12:56:40

John P. Millis, Ph.D. for redOrbit.com - Your Universe Online Understanding chemical reactions in space is incredibly difficult. First of all, the extremely cold temperatures would all but preclude most chemicals mixing, as there is simply insufficient energy to ignite the reactions. Yet, observational data suggests that complex compounds are being created in this inhospitable environment. Now, however, a new study reveals that a quantum effect known to be the key in stellar physics may...

Magnetic Fire Reveals Energy's Path
2013-05-14 06:16:33

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online The most efficient ways of storing energy is within electric and magnetic fields. And as the world proceeds to develop ever more efficient and “green” energy solutions, understanding the nature of these fields and how the energy propagates is essential. One of the challenges is understanding how energy flows through magnetic materials. Researchers have been trying for decades to draw a parallel between the...

2013-05-07 23:32:38

Actus Potentia´s Arithmetic software (http://www.actuspotentia.com/Arithmetic.shtml) contains modules that add application and purpose to Arithmetic. Practical story problems and problems in science and engineering put arithmetic in context and motivate students to choose and pursue professional careers in science, technology, and engineering. Ames, Iowa (PRWEB) May 07, 2013 In the beginning stages, arithmetic lessons comprise of basic operations with fractions and decimal numbers....

2013-04-06 23:04:16

The scientific world has long known that there is a link between physical and mental energy, the feeling of well-being that a high level of energy gives, and the positive effect this has on the ability to achieve more at work, to enjoy more fulfilling relationships and even to live longer. The question is how to measure these energy levels - there are no online tests that can do this, but a team from Amsterdam, Netherlands have just introduced the Total Energy Test which could change this....

2013-03-14 11:12:37

The precise methodology of Richard Feynman's famous double-slit thought-experiment — a cornerstone of quantum mechanics that showed how electrons behave as both a particle and a wave — has been followed in full for the very first time. Although the particle-wave duality of electrons has been demonstrated in a number of different ways since Feynman popularized the idea in 1965, none of the experiments have managed to fully replicate the methodology set out in Volume 3 of...

Dark Energy Theory Challenged
2013-01-10 09:15:38

[ Listen to the Podcast “The Search For Dark Energy” ] redOrbit Staff & Wire Reports - Your Universe Online A popular theory that relies on dark energy, thought to be the main contributor to the accelerating expansion of the Universe does not fit newly obtained data with regards to one fundamental constant — the proton to electron mass ratio. Rodger Thompson, a University of Arizona astronomy professor, disclosed his findings Wednesday at the American...


Latest Introductory physics Reference Libraries

6_60c162484c1943aae138f09b8da030e95
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...

6_e1c9b89b48eaf2af7055b7bbebf1a19c2
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
caparison
  • A cloth or covering, more or less ornamented, laid over the saddle or furniture of a horse, especially of a sumpter-horse or horse of state.
  • Clothing, especially sumptuous clothing; equipment; outfit.
  • To cover with a caparison, as a horse.
  • To dress sumptuously; adorn with rich dress.
This word ultimately comes from the Medieval Latin 'cappa,' cloak.
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