In , the Viking landers performed an even more accurate experiment along these lines. Concept of the Gravity Probe B spacecraft. A collage of images were edited to form the completed space vehicle. The theory goes that Earth, a rotating body, should be pulling the fabric of space-time around it as it spins, in addition to distorting light with its gravity.
The spacecraft had four gyroscopes and pointed at the star IM Pegasi while orbiting Earth over the poles. In this experiment, if Einstein had been wrong, these gyroscopes would have always pointed in the same direction.
Global Positioning System or GPS is a United States space-based radionavigation system that helps pinpoint a three dimensional position to about a meter of accuracy for example latitude, longitude and altitude and provide nano-second precise time anywhere on Earth.
Credit: NASA. In order to know where you are, you need a receiver — like your phone, a ground station and a network of satellites orbiting Earth to send and receive signals. At the same time, special relativity would say time moves slower for objects that move much faster than others. While the difference per day is a matter of millionths of a second, that change really adds up. Read a physics book before spouting rubbish. Earth is moving in The sun is moving in The universe is on sufficiently large scales flat space, and the supernova results show that space is smooth on small scales.
Inflation would have removed any pre existing gravitational defects diluted them out of a typical observable universe. So curvature geodesics of general relativity seems — to me — to be analogous to other classic field theory field lines, convenience tools but no physical existence. After all, if you look at her marks at the University and compare it to her husband, a well known scientist, it kind a make it strange that Albert is the one responsible for the theory, and if you know about his blunders and lack of true scientific work after she has left him….
Einstein derived bose-einstein condensates in the s after leaving Mileva Maric and derived General Relativity without Mileva she was living in Switzerland, he was in Berlin at the time. Einstein produced arguably 12 Nobel Prizes worth of seminal, original scientific masterpieces including his paper on spontaneous and stimulated emission which created the theoretical foundation for the LASER and began the field of condensed matter physics.
Using a conspiracy theory with no evidence to boot. The first thing to consider is that the reason Einstein imagined time and space forming a fabric, is because from his limited perspective using only visible light telescopes, that is all it seemed is there. He was profoundly ignorant of what truly populates space from the interconnected electromagnetic structures, plasma, Heliosphere current sheet, and on and on. All these so called proofs are not.
Light bending around a star or galaxy is due to plasma atmosphere refraction. Neither can the gyro experiment. Einstein died prior to these discoveries.
Gravitational waves are real. Learn done tensor calculus first. Newton solved his equation in real numbers on in time independent domain. You being a physicist means you are mathematically deficient. Also, why spout known pseudoscience on a science site? Greatest scientist ever. Newton did more heavy lifting, so did — arguably — Darwin though in his case there were part parallel efforts, such as Wallace. Two photons emitted by the same colossal event, arriving nine-tenths of a second apart, after travelling for 7.
The actual photon pulse lasted 2. So, how powerful was the GRB that emitted the photons? Enough to sterilise the galaxy the event occurred in? Low risk, mind that the jets are narrow and life has survived 4 billion years. The last item — that clocks tick at idiosyncratic rates that depend on the local gravitational field strength — has profound implications for Quantum Mechanics. In his paper, John S. Bell disregarded this easily overlooked fact, leading him to arrive at a prediction that, decades later, was found to disagree with experiment.
Had Bell included the fact that time-keeping is local — varying from one location in space to the next — he would have been led to derive a different prediction that matched the predictions of QM. Entangled particles rapidly decohere for a variety of reasons, and differential time-keeping is one crucial reason that is unavoidable in our cosmos.
Quantum field theory was developed as consistent with special relativity and as I link to in another comment, seems to be able to describe general relativity as well.
A combination that is the basis for the gauge and quantum field theories of it. Okay, but the Universe might be a man, not a woman, due to the fact that there was more matter than antimatter… The God can be a woman, after all. I just could not find any data on that, strange, though…. Think of the sound waves that emanate from a siren on an emergency vehicle; as the vehicle moves toward an observer, sound waves are compressed, but as it moves away, they are stretched out, or redshifted.
Known as the Doppler Effect, the same phenomena occurs with waves of light at all frequencies. In the s, according to the American Physical Society , physicists Robert Pound and Glen Rebka shot gamma-rays first down, then up the side of a tower at Harvard University.
Pound and Rebka found that the gamma-rays slightly changed frequency due to distortions caused by gravity. Einstein predicted that violent events, such as the collision of two black holes, create ripples in space-time known as gravitational waves.
That detection came on Sept. LIGO, made up of twin facilities in Louisiana and Washington, had recently been upgraded, and were in the process of being calibrated before they went online. The first detection was so large that, according to then-LIGO spokesperson Gabriela Gonzalez, it took the team several months of analysis to convince themselves that it was a real signal and not a glitch.
Since then, scientists have begun quickly catching gravitational waves. All told, LIGO and its European counterpart Virgo have detected a total of 50 gravitational-wave events , according to program officials. Those collisions have included unusual events like a collision with an object that scientists can't definitively identify as black hole or neutron star, merging neutron stars accompanied by a bright explosion, mismatched black holes colliding and more.
This article was updated on June 4, by Space. Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: community space.
And you say, well, we could look at the light from a star that goes right next to the sun to see if it's bent. But you can't do that unless you have a total eclipse. Otherwise, you go blind. So, they wait for the eclipse, and it proves Einstein right.
Over and over again, you read stories saying, Einstein's theories disproved or debunked, and then you wait a month or two, and there has been nothing that has cut out the underpinnings of general relativity, of all of relativity.
And even the ones that Einstein thought, well, this just can't be true, like his theory predicts black holes — it predicts an expanding cosmos. He said, well, that can't be right, so maybe somebody will have to fix the theory. It turns out the theory is right, and the universe is expanding. There are black holes. Support Provided By: Learn more. Wednesday, Nov The Latest. World Agents for Change. Health Long-Term Care.
For Teachers. NewsHour Shop. About Feedback Funders Support Jobs. Close Menu. Email Address Subscribe. Yes Not now. Leave your feedback. Share on Facebook Share on Twitter. Transcript Audio. Gwen has a look at how it changed our understanding of the cosmos and the man behind the ideas. She recorded this conversation earlier this week. Today, the importance of his work is even better recognized than a century ago. MAN: The best theories in physics always take to places where the people who invented them didn't imagine.
MAN: And liftoff of space shuttle Discovery with the Hubble space telescope, our window on the universe.
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