Científicos detectan ondas gravitacionales de Einstein por tercera vez - LA TERCERA. El Observatorio de Interferometría Láser de Ondas Gravitacionales (LIGO, en inglés) anunció hoy que detectó por tercera vez las ondas gravitacionales predichas hace un siglo por Albert Einstein, un fenómeno que según los investigadores “abre las puertas de una nueva astronomía”.
Como en las dos ocasiones anteriores, las ondas se produjeron cuando dos agujeros negros se fusionaron y formaron uno mayor, de aproximadamente 49 veces la masa de nuestro sol. Collapsing Star Gives Birth to a Black Hole. Albert Einstein letter goes up for auction. Three major papers by Einstein, on Relativity, Quantum, and Atomic Physics, in Annalen der Physik Series 4, Volume 17; plus the first separate edition of his cornerstone work on General Relativity - Price Estimate: $12000 - $15000. Description:
Albert Einstein's original theory of relativity manuscript goes on display for the first time. By Daily Mail Reporter Updated: 10:53 BST, 10 March 2010 The original manuscript of Albert Einstein's groundbreaking theory of relativity has gone on display in its entirety for the first time.
Einstein's 46-page handwritten explanation of his general theory of relativity is being shown at the Israel Academy of Sciences and Humanities in Jerusalem as part of its 50th anniversary celebration. In the manuscript, which helps explain everything from black holes to the Big Bang and contains the famous equation of E=MC², Einstein demonstrates an expanding universe and shows how gravity can bend space and time. List of scientific publications by Albert Einstein - Wikipedia. Einstein's scientific publications are listed below in four tables: journal articles, book chapters, books and authorized translations.
Each publication is indexed in the first column by its number in the Schilpp bibliography (Albert Einstein: Philosopher–Scientist, pp. 694–730) and by its article number in Einstein's Collected Papers. Complete references for these two bibliographies may be found below in the Bibliography section. The Schilpp numbers are used for cross-referencing in the Notes (the final column of each table), since they cover a greater time period of Einstein's life at present.
The English translations of titles are generally taken from the published volumes of the Collected Papers. Einstein Paper Sets Auction Record. Albert Einstein's earliest and longest known manuscript on relativity -an unpublished 72-page work probably written in 1911 or 1912 - was auctioned yesterday at Sotheby's.
The hand-written paper spelling out the famous formula, E-mc#2, brought $1.2 million. The price was a record at auction for any manuscript sold in the United States and for any unillustrated text manuscript sold anywhere in the world. The unidentified buyer arrived in the auction gallery shortly before the manuscript came up for bidding and raised his paddle toward the end of the competition, when the bidding reached $925,000. ''Is that a bid? '' the auctioneer, David Redden, asked, and the dark-haired man in a brown sport jacket raised his paddle again. ''I have no idea who bought it,'' said the editor of the Einstein papers, John Stachel, after the sale. ''These things have a symbolic value,'' said Dr.
Professor Stachel said the manuscript apparently survived because it was never published. Mr. Gravitational waves: 6 cosmic questions they can tackle. S.
Shapiro, R. Gold, V. Paschalidis, M. Ruiz, Z. Etienne & H. Einstein's gravitational waves found at last. One hundred years after Albert Einstein predicted the existence of gravitational waves, scientists have finally spotted these elusive ripples in space-time.
In a highly anticipated announcement, physicists with the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) revealed on 11 February that their twin detectors have heard the gravitational 'ringing' produced by the collision of two black holes about 400 megaparsecs (1.3 billion light-years) from Earth1, 2. “Ladies and gentlemen, we have detected gravitational waves,” David Reitze, the executive director of the LIGO Laboratory, said at a Washington DC press conference. The black-hole collision that reshaped physics. Illustration by Mark Garlick Binary black holes radiate a huge amount of orbital energy as gravitational waves.
The event was catastrophic on a cosmic scale — a merger of black holes that violently shook the surrounding fabric of space and time, and sent a blast of space-time vibrations known as gravitational waves rippling across the Universe at the speed of light. Consiguen crear cristales de tiempo. En una hazaña considerada teóricamente imposible, el físico Shivaji Sondhi, que publicó un artículo en Physics Review Letters sobre la base teórica de cómo los cristales de tiempo podrían existir, junto con dos equipos de científicos de la Universidad de Harvard y la Universidad de Maryland (EE.
Una nueva partícula cuestionaría toda la física actual. Un equipo internacional de científicos de la Organización Europea para la Investigación Nuclear (CERN) encontró indicios de la posible existencia de una nueva partícula desconocida hasta ahora que cuestionaría la física actual y que haría vislumbrar una nueva física.
“Los viajes en el tiempo son, matemáticamente, posibles” La clave sería aprovecharse de la curvatura en el espacio-tiempo que produce la gravedad. La NASA encontró dos naves espaciales perdidas en la Luna. Consiguen crear cristales de tiempo. LIGO Scientific Collaboration - The science of LSC research. PDF version Read this summary [in PDF format] in French | German | Spanish A few months after the first detection of gravitational waves from the black hole merger event GW150914, the Laser Interferometer Gravitational-Wave Observatory (LIGO) has made another observation of gravitational waves from the collision and merger of a pair of black holes. This signal, called GW151226, arrived at the LIGO detectors on 26 December 2015 at 03:38:53 UTC. The signal, which came from a distance of around 1.4 billion light-years, was an example of a compact binary coalescence, when two extremely dense objects merge.
Using Gravitational Waves to Pinpoint Colliding Black Holes. Imagine watching birds in your backyard. Theory that challenges Einstein's physics could soon be put to the test. Scientists behind a theory that the speed of light is variable - and not constant as Einstein suggested - have made a prediction that could be tested. Einstein observed that the speed of light remains the same in any situation, and this meant that space and time could be different in different situations. The assumption that the speed of light is constant, and always has been, underpins many theories in physics, such as Einstein's theory of general relativity. In particular, it plays a role in models of what happened in the very early universe, seconds after the Big Bang. Gravitational waves detected by LIGO from black hole collisions a billion years ago – Quantum field theory. Hat tip to vixra blog for these newly released plots of LIGO gravitational waves: The gravitational-wave event GW150914 observed by the LIGO Hanford (H1, left column panels) and Livingston (L1, right column panels) detectors.
Times are shown relative to September 14, 2015 at 09:50:45 UTC: B. P. Abbott et al. Untitled. Fast Radio Bursts Mystify Experts—for Now. What shines brighter than the Sun, appears for only a split second and lights up Earth’s skies thousands of times each day? If you’re stumped, don’t worry—experts are too. For nearly a decade, astrophysicists have been struggling to explain perplexing millisecond chirps of radio waves pinging through the heavens. Now, several new studies are bringing researchers closer to solving the mystery by narrowing the search for the radio flashes’ origins to youthful stellar outbursts in distant galaxies. Dubbed “fast radio bursts,” or FRBs, the first of these bright, brief events was announced in 2007 by the West Virginia University astrophysicist Duncan Lorimer and colleagues, based on data from the Parkes radio telescope in Australia. Can You Hear Me Now? The Truth about Cell Phones and Cancer. Baseball legend Yogi Berra is said to have fretted, “I don’t want to make the wrong mistake.”
As opposed to the right mistake? A mistake that is both wrong and right is the alleged connection between cell phone use and brain cancers. Reports of a link between the two have periodically surfaced ever since cell phones became common appendages to people’s heads in the 1990s. As recently as this past May 17, Time magazine reported that despite numerous studies finding no connection between cell phones and cancer, “a growing band of scientists are skeptical, suggesting that the evidence that does exist is enough to raise a warning for consumers—before mass harm is done.” Their suggestion follows the precautionary principle, which holds that if something has any potential for great harm to a large number of people, then even in the absence of evidence of harm, the burden of proof is on the unworried to demonstrate that the danger is not real.
Block Radio Waves. Key concepts Physics Radio waves Electricity Electromagnetism Wireless communication Introduction Have you ever wondered how a radio can receive music and news broadcasts over thin air? Radios, as well as radio-controlled cars and cell phones, all receive information via invisible waves. Some of these waves are called radio waves. Radio waves are a type of electromagnetic radiation, a kind of energy that also includes visible light.
Radio waves are not harmful but are in fact extremely useful for communicating across long distances. Background A transmitting antenna, or transmitter, generates and sends out radio waves thanks to a specific electrical current. Have We Detected an Alien Signal? It's Highly Doubtful. Based on breathless news reports from many prominent media outlets that should know better, this week’s biggest non-story in science is the discovery of a possible radio signal from talkative aliens elsewhere in the Milky Way. I’m here to tell you, alas, that anyone hoping for this to be the moment of First Contact with another galactic civilization is very likely to be disappointed. It all started innocently enough, with a carefully worded blog post this past Saturday from the respected science journalist Paul Gilster. Gilster wrote about a message he had received from some SETI (Search for Extraterrestrial Intelligence) researchers who reported a curiously powerful 3-second burst of radio waves from a star less than 100 light-years away.
The researchers, led by Nikolai Bursov of the Russian Academy of Sciences, couldn't rule out the possibility that the signal was artificial, and were intrigued enough that they called for “permanent monitoring” of the star. Could certain frequencies of electromagnetic waves or radiation interfere with brain function? Amir Raz, assistant professor of clinical neuroscience at Columbia University, offers the following answer. Definitely. Radiation is energy and research findings provide at least some information concerning how specific types may influence biological tissue, including that of the brain.
In some cases the effect may be therapeutic. For example, transcranial magnetic stimulation (TMS) is a technique used to induce a short-term interruption of normal activity in a relatively restricted area of the brain by rapidly changing a strong magnetic field near the area of interest. El experimento del suicidio cuántico. En la mañana del 28 de enero de 2014, Gabriel MaGee saltaba desde lo alto del edificio para el que trabajaba, en el complejo Canary Wharf, Londres. Pero si pensáis que este era el suicidio más de un ejecutivo excesivamente estresado o con problemas económicos, os equivocáis. Aunque puede que nunca sepamos realmente qué ocurrió, según dicen las malas lenguas (y los millones de conjeturistas en internet), Macgee estaba cometiendo un "suicidio cuántico".
Una forma de suicidio que en realidad te lleva a la inmortalidad cuántica, una vida mejor y más feliz. Gravitational Waves, As Einstein Predicted. Gravitational Waves Detected 100 Years After Einstein's Prediction. See also: LIGO Hanford Press Release. Gravitational waves, Einstein's ripples in spacetime, spotted for first time. Long ago, deep in space, two massive black holes—the ultrastrong gravitational fields left behind by gigantic stars that collapsed to infinitesimal points—slowly drew together. The stellar ghosts spiraled ever closer, until, about 1.3 billion years ago, they whirled about each other at half the speed of light and finally merged.
Einstein's gravitational waves found at last. NASA Selects Scientists for Mars Rover Research Projects. NASA has selected 28 researchers as participating scientists for the Curiosity Mars rover mission, including six newcomers to the rover's science team. Chinese Satellite Is 1 Giant Step for the Quantum Internet. How Your Brain Learns Physics. Are the Constants of Physics Constant? Stephen Hawking bemused by Donald Trump's success. Einstein's Discovery of General Relativity, 1905-1915 - Cosmic Variance : Cosmic Variance.
Life Is a Braid in Spacetime - Issue 29: Scaling. Visions of Future Physics. Una presencia extraña en una estrella lejana desata las especulaciones. Why There Will Never Be Another Einstein - Cross-Check. To Catch a Black Hole, Use a Black Hole. Blue Sky and Red Ice Found on Pluto. Einstein's brain 'exceptionally complicated' Nuclear fusion. Stephen Hawking en Reddit, más sobre la inteligencia artificial. Científicos detectan por segunda vez ondas gravitacionales que predijo Einstein. LIGO detecta ondas gravitacionales por segunda vez. The Fermi Paradox.