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Fast Times in Physics

By Guest PostNovember 29, 2011Scienceatomic clocks, beams of neutrinos, c, Chicago, einstein, equation, Europe, faster than light, fermilab, Japan, marvin marshak, minos, neutrinos, northern minnesota, opera, physicists, scientific world, soudan underground laboratory, speed of light, subatomic particles, time, university of minnesota, vacuum, vibrations of cesium atoms

A U physicist will help determine if neutrinos can outrace light

Back in 2007, a physics experiment clocked elusive subatomic particles called neutrinos going faster than light.

That wasn’t supposed to happen. If the speed of light in a vacuum—denoted “c” by physicists—isn’t the universal speed limit, it would mean that Einstein put the wrong number in his famous E=mc² equation.

University of Minnesota physicist Marvin Marshak was part of the experiment, called MINOS. It clocked beams of neutrinos shot from Fermilab, a national physics lab near Chicago, to a detector 457 miles away in the Soudan Underground Laboratory in northern Minnesota. (more…)

Breakthrough Scientific Discoveries No Longer Dominated By the Very Young, Study Finds

By Guest PostNovember 11, 2011Science20th century, benjamin jones, biographical analysis, bruce weinberg, jeff grabmeier, knowledge, medicine, nobel laureates, nobel prize, nobel prize winner, northwestern university, ohio state university, physicists, physics, quantum mechanics, scientists under the age of 40, significant breakthroughs in chemistry

COLUMBUS, Ohio – Scientists under the age of 40 used to make the majority of significant breakthroughs in chemistry, physics and medicine – but that is no longer the case, new research suggests.

A study of Nobel Laureates from 1901 to 2008 in these three fields examined the age at which scientists did their prize-winning work.

Results showed that before 1905, about two-thirds of winners in all three fields did their prize-winning work before age 40, and about 20 percent did it before age 30. (more…)

First Observational Test of the ‘Multiverse’

By Guest PostAugust 5, 2011Sciencealternative universes, big bang, bubble, bubble universes, cmb, cmb radiation, cmb sky, cosmic microwave background radiation, daniel mortlock, european space agency, hiranya peiris, modern theories of fundamental physics, multiverse, NASA, physicists, planck satellite, powerful computer algorithm, signs of bubble universe collisions, sky, stephen feeney, theory, ucl, universe, university college london, wilkinson microwave anisotropy probe, wmap

The theory that our universe is contained inside a bubble, and that multiple alternative universes exist inside their own bubbles – making up the ‘multiverse’ – is, for the first time, being tested by physicists.

Two research papers published in Physical Review Letters and Physical Review D are the first to detail how to search for signatures of other universes. Physicists are now searching for disk-like patterns in the cosmic microwave background (CMB) radiation – relic heat radiation left over from the Big Bang – which could provide tell-tale evidence of collisions between other universes and our own. (more…)

Tag Archives: physicists

Fast Times in Physics

Breakthrough Scientific Discoveries No Longer Dominated By the Very Young, Study Finds

First Observational Test of the ‘Multiverse’