news tagged with:inertial mass en-us internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. ALPHA experiment presents first direct evidence of how atoms of antimatter interact with gravity The atoms that make up ordinary matter fall down, so do antimatter atoms fall up? Do they experience gravity the same way as ordinary atoms, or is there such a thing as antigravity? General Physics Tue, 30 Apr 2013 11:00:04 EDT news286536129 New study reveals contribution of little known Austrian physicist, Friedrich Hasenöhrl, to famous Einstein equation Two American physicists outline the role played by Austrian physicist Friedrich Hasenöhrl in establishing the proportionality between the energy (E) of a quantity of matter with its mass (m) in a cavity filled with radiation. In a paper about to be published in EPJ H, Stephen Boughn from Haverford College in Pensylvannia and Tony Rothman from Princeton University in New Jersey argue how Hasenöhrl's work, for which he now receives little credit, may have contributed to the famous equation E=mc2. General Physics Fri, 25 Jan 2013 09:24:29 EDT news278328243 Testing Einstein's E=mc2 in outer space (—University of Arizona physicist Andrei Lebed has stirred the physics community with an intriguing idea yet to be tested experimentally: The world's most iconic equation, Albert Einstein's E=mc2, may be correct or not depending on where you are in space. General Physics Fri, 04 Jan 2013 08:03:37 EDT news276508993 Magnetic bubbles behave differently than other magnetic defects (w/ video) (—Magnetism may be one of the most fundamental concepts in physics, but under the surface, magnetism holds complex secrets that scientists are still trying to unravel. One of these areas involves the dynamics of magnetic topological defects in thin films of ferromagnetic materials. In a new study, physicists have demonstrated that magnetic topological defects called skyrmions, which resemble swirling eddies or bubbles, behave differently than do other magnetic defects. The scientists show that skyrmions' unusual behavior arises from the strange occurrence of waves on the bubbles' edges that travel with different speeds in opposite directions. General Physics Mon, 10 Dec 2012 08:40:02 EDT news274338979 Dark matter effect might be explained by modified way to calculate inertial mass (—One of the first observations suggesting the existence of an invisible dark matter came in 1933 when astronomer Fritz Zwicky noticed that galaxy clusters were more energetic than they should be, according to the mass of visible stars in them, and he proposed dark matter to explain the discrepancy. Later observations of galaxies (by Rubin & Ford, among others) showed that the galaxies' edges were rotating as fast as the insides of the galaxies, even though acceleration is supposed to decrease with radius. Astronomy Tue, 18 Sep 2012 11:30:01 EDT news267185978 Gyroscope's unexplained acceleration may be due to modified inertia ( -- When a spinning laser gyroscope is placed near a super-cooled rotating ring, the gyroscope accelerates a bit in the same direction as the ring, and scientists aren&#146;t sure why. The anomalous acceleration was discovered in 2007 by Martin Tajmar at the Space Propulsion group at the Austrian Institute of Technology in Seibersdorf, Austria. So far, the effect has only been observed in this one laboratory. Since then, scientists have been looking for an explanation for the so-called Tajmar effect. General Physics Tue, 26 Jul 2011 08:20:01 EDT news230880374