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Albert Einstein
Includes questions about the life and works of physicist Albert Einstein.
5,059 Questions
How did Albert Einstein became an American citizen?
Albert Einstein was born into a Jewish family in Germany in 1879 and saw the writing on the wall during the rise of fascism in the 1920's and 30's. He travelled to the US, arguably to further his studies and research and in 1932, he managed to stay there. He gained Swiss citizenship in 1901 and US citizenship in 1940.
The two social reformers who founded Hull House in 1889 and later won a Nobel Prize were?
Jane Addams and Ellen Gates Starr were the two social reformers who founded Hull House in 1889. Jane Addams went on to become the first American woman to win the Nobel Peace Prize in 1931 for her work in promoting peace and social justice.
What development in baseball was Albert Spalding responsible for?
Spalding is given much of the credit for introducing gloves to baseball; after developing a sore arm from pitching, he switched to first base in 1877 and started wearing highly visible black gloves.
What is the meaning of e equals mc squared?
E=mc2 ; E=energy m=mass c=speed of light. It simply means that energy and mass are different manifestion of the same thing. Energy can the converted into mass and vice versa. For example, a stationary proton and a moving one don't have the same mass, because the moving proton has Kinetic Energy which is equivalent to a small quantity of mass.
When did Albert Einstein become a German citizen again?
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Was Albert Einstein in the military?
No. Generally speaking, no. Although he was quite brilliant at maths.
What happened to Albert speers brothers?
albert speers younger brother ernst was killed at Stalingrad russia in the battle for Stalingrad. like so many other Germans his body was never found or returned to the family and there are some letters that exist between ernst and the parents which he wrote and sent during this battle.
The oldest brother turned into a thorn in his youger brother alberts side and was generally desribed as a wastrel.
the eldest went to visit his brother while in spandau prison and the atmosphere was said the best ever it was actually worded they never got along so good before or after.
Does the equation E equals mc2 have relevance to a nuclear power plant?
Yes. It predicts the amount of energy that would be released by the conversion of a given mass of matter.
Scientists haven't "slowed down the speed of light in the lab" or anything like that. Light is known to appear to slow down when passing through anything other than a vacuum because of the phenomenon of interference. Light doesn't actually change speed. As to how this affects E=mc2 as was asked, it doesn't. Einstein's famous mass-energy equivalence states that mass can be converted into energy and energy converted into mass, with both reactions having a conversion factor of the c2 or the square of the speed of light. (The equation says that a little bit of mass can be converted into a whole lot of energy, and a lot of energy is necessary in its conversion to just a tiny bit of mass.)
Who was the German physicist famous for the formula e equals mc squared?
That equation is associated with Albert Einstein.
Here's an actual quote from him. I love this story, and I hope nobody will feel that
it should be deleted from this answer:
When he published his first paper on Relativity, Einstein wrote to a colleague:
"If I am right, the Germans will say I am a German, the Swiss will say I am Swiss, and
the French will say I am French. If I am wrong, the Swiss will say I am French, the French
will say I am German, and the Germans will say I am a Jew."
When can you use the equation E equals MC2?
Examples of E = MC^2
Energy = mass X speed of light squared
Energy = 200 kilograms X (2.998 X 10^8 m/s)^2
= 1.78 X 10^19 Joules of energy ( 4.184 Joules = 1 calorie )
Who was Albert Einstein's mother?
Albert Einstein's mother was Pauline Einstein, who was born as Pauline Koch. She was a housewife and mother to Albert and his sister Maja. Pauline had a significant influence on Albert's early education and upbringing.
Were there atomic bombs in 1950's?
On August 2, 1939, just before the beginning of World War II, Albert Einstein wrote to then President Franklin D. Roosevelt. Einstein and several other scientists told Roosevelt of efforts in Nazi Germany to purify uranium-235, which could be used to build an atomic bomb. It was shortly thereafter that the United States Government began the serious undertaking known then only as "The Manhattan Project." Simply put, the Manhattan Project was committed to expediting research that would produce a viable atomic bomb.
Yes, I believe they used it in 1945 July 16.
What does Einstein's equation E equals mc2 imply about mass and energy?
The Energy in a specific piece of matter is equal to its mass times the square of the speed of light.
You might usefully investigate the units in this equation: was Einstein using ergs, grams, kilometers or what.
Where does E equals mc2 come from?
Albert Einstein introduced the "Matter Energy Equivalent" a part of "[General]Theory of Relativity" on September 27th 1905; it was from this work that the famous E=MC2 is taken.
Chaos theory is a field of applied mathematics with applications in many related fields, including meteorology, economics, and even philosophy. The basic premise is that small differences in the initial conditions of a system yield widely-varying outcomes, precluding attempts at longterm prediction. It is often instantiated using the "butterfly effect" to show how capricious chaotic systems can be, the critical things being (i) their complexity, and (ii) just how delicately balanced they can be.
The term "butterfly effect" is also reflective of the Lorenz Attractor plot, which is the fractal structure that corresponds to the long-term behavior of a Lorenz Oscillator, a 3-D dynamical system, whose motion is chaotic. The plot looks like the wings of a butterfly.
Some of the common misunderstandings of this theory:
- Chaos is not simply how complicated a system is, or how many different variables there are to take into account.
- Chaos does not mean a system is not deterministic. By this I mean there may be a well defined set of rules the system follows, and in principle you can predict, as accurately as you want, what is going to happen - assuming you have the instruments to measure the current state of the system accurately enough, and the computing power to do sufficiently accurate calculations.
A chaotic system is one that is so sensitive to initial conditions that it's impractical to predict its behavior far in advance, because of limited accuracy of measurement and computing power.
A good example is the logistic map. You start with a constant r. (This isn't chaotic for all values of r, but for most values between about 3.5 and 4 it is chaotic.) You pick a number x_0, between 0 and 1. Then you define the sequence x_0, x_1, x_2, ... as follows:
x_1 = r * x_0 * (1-x_0)
x_2 = r * x_1 * (1-x_1)
x_3 = r * x_2 * (1-x_2)
etc. This isn't a complicated system - the rule for calculating the next term in the sequence is easy to understand, and there is only one variable (x). It's also deterministic: If you know exactly what the value of x_0 is, you can calculate x_1000 exactly. (More accurately: if you know x_0 to enough decimal places and have a big enough computer, you can calculate x_1000 to, say, 10 decimal places.) But in practice any attempt to calculate x_1000 is doomed to failure.
Ed Lorenz' seminal paper in 1963, Deterministic Nonperiodic Flow, can be found at the related link below.
Albert Einstein grew up in Germany. He was born in 1879 and died in 1955. He refused life support at the end of his life.
When was e equals mc2 formulated?
Formulated by Albert Einstein and published in his Special Theory of Relativity in 1905.
What is the square root of the speed of light?
Answser: 431.277173 miles/sec
Answer: As far as I know, it doesn't make much sense to calculate the square root of a speed. If you do calculate the square root of a speed, the answer will definitely not be in miles/second, but in root-miles per root-second... whatever that means. To get the energy equivalent of a mass, the SQUARE (not the square root) of the speed of light is used. If the speed of light is expressed in meters/second, the square of this will be in square meters per square second.
If: E*I = P
Then: I = P/E
