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Keyword: speedoflight

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  • Astronomers Just Found a Star Orbiting a Black Hole at 1 Percent the Speed of Light

    03/16/2017 10:49:42 AM PDT · by C19fan · 46 replies
    Science Alert ^ | March 15, 2017 | Mike McRae
    Astronomers have just spotted a star whizzing around a vast black hole at about 2.5 times the distance between Earth and the Moon, and it takes only half an hour to complete one orbit. To put that into perspective, it takes roughly 28 days for our Moon to do a single lap around our relatively tiny planet at speeds of 3,683 kilometres (2,288 miles) per hour, meaning this star is moving at some mind-boggling, break-neck speeds.
  • Cosmic uncertainty: Is the speed of light really constant?

    03/10/2017 3:40:14 PM PST · by SeekAndFind · 60 replies
    New Scientist ^ | 03/01/2017 | Stuart Clark
    The speed of light in a vacuum is the ultimate cosmic speed limit. Just getting close to it causes problems: the weird distortions of Einstein’s relativity kick in, so time slows down, lengths go up, masses balloon and everything you thought was fixed changes. Only things that have no mass in the first place can reach light speed – photons of light being the classic example. Absolutely nothing can exceed this cosmic max.We have known about the special nature of light speed since an experiment by US physicists Albert Michelson and Edward Morley in the 1880s. They set two beams...
  • Variable, Not Constant: Speed Of Light Theory Challenging Einsteins Physics Can Now Be Tested

    11/27/2016 11:30:21 AM PST · by BenLurkin · 56 replies
    Tech Times ^ | 27 November 2016, 1:16 am EST | Dianne Depra
    Researchers suggesting that the speed of light varies have come up with a numerical prediction that will allow their theory to be tested. Many theories in physics are built upon the idea that the speed of light is at a constant rate, but Joo Magueijo and Niayesh Afshordi think otherwise. In a paper published in the journal Physical Review D, they detailed the creation of an exact figure on the spectral index, a model that can be used to determine if their theory is valid or not. All structures in the universe today were created when fluctuations occurred in the...
  • Just how dangerous is it to travel at 20 percent the speed of light?

    08/25/2016 8:57:03 AM PDT · by BenLurkin · 53 replies
    technofres.com ^ | 08/24/2016 | Victor Sopsan
    Breakthrough Starshot is one of the more exciting scientific ideas that has popped up in the past decade, with its promise to deliver hardware to the nearest star in time for many people currently alive to see it. While the idea would work on paper as an extrapolation of existing technology, there are a lot of details that need to be thoroughly checked out, because its possible that one of them could present a show-stopper. Theres a bit of good news there: Breakthrough Starshot is apparently funding the needed research to give its concept a thorough vetting. A recent posting...
  • Was Einstein wrong all along? Controversial theory suggests the speed of light is SLOWER...

    06/28/2014 12:14:35 PM PDT · by BenLurkin · 73 replies
    dailymail.co.uk ^ | : 06:57 EST, 27 June 2014 | Ellie Zolfagharifard
    The University of Maryland physicist believes the delay could have been because the light was in fact slowed as it travelled due to something known as 'vacuum polarisation'. During this phenomenon, photons break down to something known as positrons and electrons for a split second. before combining together again. When they split, quantum mechanics creates a gravitational potential between the pair of virtual particles. Dr Franson argues that the process might have a gradual impact on the speed of the photon, meaning that over 168,000 light years, the photons may have suffered a near five-hour delay. If the physicist is...
  • Faster Than the Speed of Light?

    11/29/2013 7:58:18 PM PST · by Star Traveler · 65 replies
    The New York Times ^ | July 22, 2013 | Danny Hakim
    HOUSTON Beyond the security gate at the Johnson Space Centers 1960s-era campus here, inside a two-story glass and concrete building with winding corridors, there is a floating laboratory. Harold G. White, a physicist and advanced propulsion engineer at NASA, beckoned toward a table full of equipment there on a recent afternoon: a laser, a camera, some small mirrors, a ring made of ceramic capacitors and a few other objects. He and other NASA engineers have been designing and redesigning these instruments, with the goal of using them to slightly warp the trajectory of a photon, changing the distance it...
  • Faster Than the Speed of Light?

    07/23/2013 8:17:19 PM PDT · by 2ndDivisionVet · 21 replies
    The New York Times ^ | July 22, 2013 | Danny Hakim
    HOUSTON Beyond the security gate at the Johnson Space Centers 1960s-era campus here, inside a two-story glass and concrete building with winding corridors, there is a floating laboratory. Harold G. White, a physicist and advanced propulsion engineer at NASA, beckoned toward a table full of equipment there on a recent afternoon: a laser, a camera, some small mirrors, a ring made of ceramic capacitors and a few other objects. He and other NASA engineers have been designing and redesigning these instruments, with the goal of using them to slightly warp the trajectory of a photon, changing the distance it...
  • New Research Shows the Speed of Light is Variable in Real Space

    03/25/2013 11:27:40 AM PDT · by Olog-hai · 20 replies
    Cleveland Leader ^ | March 25, 2013 1:33pm | Julie Kent
    Two new studies to be published in the European Physical Journal D demonstrate that the speed of light is variable in real space. Textbook explanations of the speed of light assume that light travels in a vacuum, but space is not a vacuum. It is not expected that the small variation in the speed of light which has been found will affect the universally accepted theories of particle physics and quantum mechanics to a large extent. However, the studies are proof that the speed of light may be variable, and shows that the mathematical treatments that have long been...
  • Researchers discover fastest light-driven process

    12/14/2012 3:04:56 PM PST · by neverdem · 13 replies
    Phys.org ^ | December 5, 2012 | NA
    A discovery that promises transistors the fundamental part of all modern electronics controlled by laser pulses that will be 10,000 faster than today's fastest transistors has been made by a Georgia State University professor and international researchers. Professor of Physics Mark Stockman worked with Professor Vadym Apalkov of Georgia State and a group led by Ferenc Krausz at the prestigious Max Planck Institute for Quantum Optics and other well-known German institutions.There are three basic types of solids: metals, semiconductors, used in today's transistors, and insulators also called dielectrics.Dielectrics do not conduct electricity and get damaged or break...
  • Loose cable blamed for speedy neutrinos

    03/06/2012 1:16:25 AM PST · by U-238 · 41 replies
    Science News ^ | 2/23/2012 | Devin Powell
    Faulty wiring has been proposed as the glitch that caused a European physics experiment to clock particles flying faster than light. Scientists at Italys OPERA experiment reported in September that nearly weightless particles called neutrinos were apparently traveling from the CERN laboratory on the Swiss-French border to an underground detector in Italy, 730 kilometers away, faster than the speed of light. The apparent violation of Einsteins theory of special relativity immediately produced a chorus of theorists offering reasons why neutrinos simply could not be going that fast (SN: 11/5/11, p. 10). It was always clear to me that the results...
  • Official Word on Superluminal Neutrinos Leaves Warp-Drive Fans a Shred of HopeBarely

    02/29/2012 4:45:22 PM PST · by neverdem · 13 replies · 1+ views
    ScienceInsider ^ | 24 February 2012 | Edwin Cartlidge
    The CERN particle physics laboratory in Geneva has confirmed Wednesday's report that a loose fiber-optic cable may be behind measurements that seemed to show neutrinos outpacing the speed of light. But the lab also says another glitch could have caused the experiment to underestimate the particles' speed. In a statement based on an earlier press release from the OPERA collaboration, CERN said two possible "effects" may have influenced the anomalous measurements. One of them, due to a possible faulty connection between the fiber-optic cable bringing the GPS signals to OPERA and the detector's master clock, would have caused the experiment...
  • Rick Perry: Lets Put Troops Back In Iraq ["I would send troops back into Iraq"]

    01/08/2012 1:16:02 AM PST · by Cincinatus' Wife · 173 replies
    TPM ^ | January 7, 2012 | Benjy Sarlin
    Rick Perry established a new gold standard for hawkish foreign policy at Saturday nights GOP debate in New Hampshire. Not only is he mad President Obama withdrew US forces, he wants to put them back on the ground there immediately. I would send troops back into Iraq, Rick Perry told a New Hampshire audience at Saturday nights GOP debate, warning that without yet another military operation in Iraq it would fall under the influence of neighboring Iran. I think its a huge error for us, he said. Were going to see Iran in my opinion, move back in at literally...
  • 2nd test affirms faster-than-light particles

    11/18/2011 11:53:59 AM PST · by TN4Liberty · 105 replies
    CBSnews.com ^ | November 18, 2011 | Brian Vastag
    A second experiment at the European facility that reported subatomic particles zooming faster than the speed of light -- stunning the world of physics -- has reached the same result, scientists said late Thursday. The "positive outcome of the [second] test makes us more confident in the result," said Fernando Ferroni, president of the Italian Institute for Nuclear Physics, in a statement released late Thursday. Ferroni is one of 160 physicists involved in the international collaboration known as OPERA (Oscillation Project with Emulsion Tracking Apparatus) that performed the experiment. While the second experiment "has made an important test of consistency...
  • Finding puts brakes on faster-than-light neutrinos

    10/21/2011 10:47:39 AM PDT · by neverdem · 23 replies
    Nature News ^ | 20 October 2011 | Eugenie Samuel Reich
    An independent experiment confirms that subatomic particles have wrong energy spectrum for superluminal travel. The claim that neutrinos can travel faster than light has been given a knock by an independent experiment. On 17 October, the Imaging Cosmic and Rare Underground Signals (ICARUS) collaboration submitted a paper1 to the preprint server arXiv.org, in which it offered a rebuttal of claims2 to have clocked subatomic particles called neutrinos travelling faster than the speed of light. The original results were published on 22 September by the Oscillation Project with Emulsion-Tracking Apparatus (OPERA) experiment. Both experiments are based at Gran Sasso National Laboratory...
  • Particles Moved Faster Than Speed of Light?

    09/24/2011 6:19:59 AM PDT · by Lonesome in Massachussets · 56 replies
    National Geographic ^ | September 23, 2011 | Ker Than
    Neutrinosghostly subatomic particlesmay have been observed traveling faster than the speed of light, scientists announced this week. If confirmed, the astonishing claim would upend a cardinal rule of physics established by Albert Einstein nearly a century ago. "Most theorists believe that nothing can travel faster than the speed of light. So if this is true, it would rock the foundations of physics," said Stephen Parke, head of the theoretical physics department at the U.S. government-run Fermilab near Chicago, Illinois.
  • Particles recorded moving faster than light: CERN

    09/22/2011 12:16:56 PM PDT · by John W · 134 replies
    Reuters ^ | September 22, 2011 | Robert Evans
    An international team of scientists has recorded neutrino particles traveling faster than the speed of light, a spokesman for the researchers said on Thursday -- in what could be a challenge to one of the fundamental rules of physics. If confirmed, the discovery would overturn a key part of Albert Einstein's 1905 theory of special relativity, which says that nothing in the universe can travel faster than light.
  • Large Hadron Atom Smasher Reaches Near Speed of Light

    03/31/2010 12:41:00 AM PDT · by ErnstStavroBlofeld · 90 replies · 1,565+ views
    The Daily Galaxy ^ | 3/30/2010 | The Daily Galaxy
    Scientists celebrated at the world's biggest atom smasher at the European Organization for Nuclear Research (CERN) near Geneva on Tuesday as they started colliding particles at record energy levels mimicking conditions close to the Big Bang, opening a new era in the quest for the secrets of the universe. The European Organisation for Nuclear Research (CERN) said it had unleashed the unprecedented bursts of energy on the third attempt, as beams of protons thrust around the 27-kilometre (16.8-mile) accelerator collided at close to the speed of light. "This is physics in the making, the beginning of a new era, we...
  • Analysis: Vitriol, invective at the speed of light (Barf Alert! Chock full of lies courtesy AP)

    10/12/2009 5:42:10 PM PDT · by NormsRevenge · 9 replies · 466+ views
    AP on Yahoo ^ | 10/12/09 | Steven R. Hurst - ap
    WASHINGTON Vitriol and invective stain American political history, but falsehoods, half-truths and innuendo now spread with the speed of light across partisan airwaves and the Internet the din drowning out the country's moderate political center. Countless Internet blogs have taken on the administration of the first African-American president, claiming falsely that Barack Obama isn't an American citizen, is a secret Muslim, is a socialist, wants to establish death panels to decide when elderly Americans would no longer receive medical care and be allowed to die. The list is long. Most recently, a partisan furor blew up...
  • High Energy Gamma Rays Go Slower Than the Speed of Light?

    10/04/2007 9:33:31 PM PDT · by annie laurie · 12 replies · 1,172+ views
    Universe Today ^ | October 3rd, 2007 | Fraser Cain
    The speed of light is the speed of light, and that's that. Right? Well, maybe not. Try and figure this out. Astronomers studying radiation coming from a distant galaxy found that the high energy gamma rays arrived a few minutes after the lower-energy photons, even though they were emitted at the same time. If true, this result would overturn Einstein's theory of relativity, which says that all photons should move at the speed of light. Uh oh Einstein. The discovery was made using the new MAGIC (Major Atmospheric Gamma-ray Imaging Cherenkov) telescope, located on a mountain top on the Canary...
  • We have broken speed of light

    08/17/2007 8:19:28 AM PDT · by poiuqwer · 99 replies · 2,601+ views
    Telegraph ^ | 08/16/2007 | Nic Fleming, Science Correspondent
    A pair of German physicists claim to have broken the speed of light - an achievement that would undermine our entire understanding of space and time. According to Einstein's special theory of relativity, it would require an infinite amount of energy to propel an object at more than 186,000 miles per second. However, Dr Gunter Nimtz and Dr Alfons Stahlhofen, of the University of Koblenz, say they may have breached a key tenet of that theory. The pair say they have conducted an experiment in which microwave photons - energetic packets of light - travelled "instantaneously" between a pair of...