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Einstein used the cosmological constant in his general relativity equations to do what?
Wiki User
∙ 9y ago
Einstein used approximation methods in working out initial predictions of the theory. Einstein later declared the cosmological constant the biggest blunder of his life.
Wiki User
∙ 9y ago
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What led Einstein to hypothesize the cosmological constant?
The brief layman's answer: Einstein was troubled because his own theories of relativity did not support the idea of a constant universe, the universe that he preferred to believe existed. His equations showed that a steady state universe would eventually give in to the forces of gravity. He developed the cosmological constant, basically a 'fudge factor', so that his theories could support a steady-state universe. Shortly after, Hubble's redshift observations provided evidence that the universe is expanding, and Einstein called the cosmological constant the worst blunder of his life. Ironically, interest in the cosmological constant is returning, as a possible way of explaining the acceleratingexpansion of the universe.
How did Albert Einstein become famous?
Einstein became famous through his work on the photoelectric effect, his development of the Special and General Theories of Relativity, and the resulting determination that the mass and energy of an object are proportionally related and that the constant or proportionality is the square of the speed of light (E=mc**2).
Does the Sun's gravity pull or push?
Straight Answer:The force of gravity is attractive. It is only attractive.It has been a matter of deep wonderment by some of the worlds' greatest scientists as to why one only sees gravity as an attractive force.Complex Answer:The above answer really responds to Newton's form of gravity. The answer is 100% correct, even if one interprets gravity in the sense of General Relativity.However, if one is willing to entertain various complex and possibly unlikely scenarios, one can come up with different versions of gravity. Not all of these can be correct and maybe none are.1. Half a century ago, antimatter was discovered. For example, a positron is an "anti-electron," identical to a positive electron and would attract a negative electron. Some people wondered if antimatter would also have the opposite of the normal gravitational force and repel normal mater.2. After the first Voyager satellites were launched and went outside of the solar system, it was noticed that they were not leaving as fast as expected. After years of research trying to understand why they were going slower than expected, it was conjectured that Newtons law of gravity, might not be exactly correct for long distances, i.e. for distances of billions of kilometers. They just could not come up with any other explanation.3. When Einstein first published his theory of General Relativity, the field equations had a term in them which was called the Cosmological Constant. In the first decades of the 20th century it was thought we lived in a static universe and something had to be present in the law of gravity to keep all the stars from falling in to one giant clump. That thing was the Cosmological Constant. Later, once it was established that we live in an expanding universe, Einstein characterized the first version of the theory, with the Cosmological Constant, as "the biggest mistake of my life."4. A century after Einstein's biggest mistake, it has been discovered that the universe is accelerating, no just moving apart. Current theories now put the Cosmological Constant back into General Relativity to explain the acceleration.5. Dark energy is the biggest unsolved mystery in science and has a tremendous implication on what is the correct law of gravity, the future of the universe and all manner of other fundamental questions.Still, in all of the above, except antimatter, gravity was still attractive.
How would your mass change if you went from the earth to the moon?
It wouldn't. Your weight would change, because it is equal to mass times acceleration, and the acceleration of gravity on the moon is about 1/6th that of Earth's, so you would weight about 1/6th as much on the moon as on the Earth. But mass is constant, regardless of where you are. Mass does increase with increased speed, however, according to Einstein's Theory of Relativity.
What is the equation for wavelength and frequency?
The frequency of the wave multiplied by the wavelength equals the speed of light. The speed of light, abbreviated "c", is 186,000 miles per second or 300,000 km per second. This is a constant. What's more, according to Einstein's theories of relativity, the is invariant (doesn't change) across all frames of reference.
What led Einstein to hypothesize the cosmological constant?
The brief layman's answer: Einstein was troubled because his own theories of relativity did not support the idea of a constant universe, the universe that he preferred to believe existed. His equations showed that a steady state universe would eventually give in to the forces of gravity. He developed the cosmological constant, basically a 'fudge factor', so that his theories could support a steady-state universe. Shortly after, Hubble's redshift observations provided evidence that the universe is expanding, and Einstein called the cosmological constant the worst blunder of his life. Ironically, interest in the cosmological constant is returning, as a possible way of explaining the acceleratingexpansion of the universe.
Why couldn't Einstein accept that the universe was expanding?
Its not that he couldn't, he eventually did and declared his "cosmological constant" the biggest mistake in his life.The situation was when Einstein developed General Relativity the prevailing cosmological theory was the Steady State Theory, that the universe was static. However General Relativity predicted that the universe could NOT be static: it must be either expanding or contracting. To correct for this apparent "error" and conform to the prevailing theory, Einstein added an arbitrary fudge factor that he called the "cosmological constant" that could be tweaked as needed to keep the General Relativity predictions in accordance with the Steady State Theory.When it was clearly shown that Hubble's data was right and the universe was expanding, he willingly deleted the "cosmological constant" from Relativity.
What is Einstein worst blunder?
The "cosmological constant".
What was named after Albert?
There are hundreds of things named after Albert Einstein. Among them are Boseâ??Einstein statistics, Einstein's constant, Einstein's radius of the universe,Einstein coefficients, and Einstein cosmological constant to get the list started.
Who was the person to add cosmological constant to the theory of relativity?
It was proposed by Albert Einstein to achieve a stationery universe, although it was admitted by him to be his "biggest blunder" in his life. for more details, refer to: http://en.wikipedia.org/wiki/Cosmological_constant
Where did Albert Einstein make the theory of relativity?
Albert Einstein gave the theory of relativity to prove that the speed of light is always constant and greatest......
What do Isaac Newton and Christopher Columbus have in common?
Gravity by Newton and space/time by Einstein. Newton's clock on earth has the same force as Einstein's clock, but when Einstein's clock moves to the top of Everest mountain, it will have less force. By Amin Elsersawi Both Newton and Einstein admitted that there is gravity. The gravity of Newton was on Earth, and the gravity of Einstein was the cosmological constant. Einstein made a big mistake when he added the cosmological constant to compensate for his thought that the universe was static (stand still). The cosmological constant was an anti-gravity 'vacuum' force that kept gravity from pulling the universe in on itself. In conclusion, Newton was right, and Einstein was wrong in distinguishing the gravity.
How was the cosmoligical constant proved wrong by Hubble?
Albert Einstein's cosmological constant was proved wrong by Hubble as he proved the universe is expanding so it doesn't need a constant to stop it imploding.
Why is light the constant in the theory of relativity?
Light is considered a constant in the theory of relativity because it travels at the same speed (approximately 299,792,458 meters per second) in a vacuum regardless of the observer's motion or velocity. This constancy of the speed of light is a fundamental postulate of Einstein's theory and is central to the predictions and equations of special and general relativity. It establishes a universal frame of reference for measuring time and space.
What was the greatest mistake he ever made according to albert Einstein?
Adding the cosmological constant to his Theory of General Relativity.More Information:Something keeps the universe expanding at an accelerating rate, we call this something unseen force or dark energy.After measuring and studying the effects of this energy, it appears that it has been a constant force for the entire life of our universe. This force may be something that emanates from spacetime itself. - - A constant force!? - - Maybe a cosmological constant!? - - He may not have understood it or properly quantified it, or even believed in it, but maybe Einstein got it right.
How did Georges Lemaitre find out about the Big Bang?
Georges LeMaitre "found out" about the Big Bang (his words were " A homogeneous universe of constant mass and growing radius") when he wrote his 1927 article describing how such a universe would satisfy the equations of general relativity and explain the red shift of distant nebulae. I have not been able to find any statement on how or why LeMaitre began to develop this idea. He seems to have single-handedly decided to take on a very basic cosmological orthodoxy (an eternally static universe) despite it being supported by almost all other cosmologists, including Einstein. My GUESS is that he either (1) noted that the equations of general relativity could not be satisfied in an eternally static universe or (2) sought an explanation for the red shift of distant nebulae.
What were some of Albert Einstein's discoveries?
Albert Einstein discovered the Theory of Relativity, he stated that speed of light in a vacuum is constant and an absolute physical boundary for motion. General relativity was Einstein's major work, and often considered one of the greatest of all time. It was not a discovery so much as an invention; it built upon the work he and others had already advanced in special relativity. He also discovered the law of photoelectric effect. Calculating size of molecules for which he got doctrate.
