Did Albert Einstein really say Newton's laws should be abandoned?
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I read a little bit about Theory of Relativity, Albert Einstein said Newton's laws should be abandoned, is that true? But my wonder is that was Einstein's Theory based or derived from Newton's laws?
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Answer:
not all of them.
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Almost all of our lives are based on Newton's Laws, which are still valid for normal-sized objects travelling at normal-sized speeds. Einstein refined Newton's laws so that we can now also understand what happens to objects which are extremely small, or moving extremely fast, or both. At everyday sizes and speeds Einstein's reformulations provide more exact answers than Newton's, but the differences between the two are so minuscule as to be unnoticable. Einstein fully understood this, of course.
tsr21
He didn't say to abandon them. He just said that they can be applied with some restrictions (large masses compared to atoms, low speeds compared to light).
ehabhamdy1983
Einstein didn't base relativity on Newton's laws. However, Newton's laws hold true at low speeds that are a tiny fraction of the speed of light that comprise our normal day-to-day experience.
Geezer
Neither based nor derived however he was obviously very familiar with them. For our basic needs of human living, Newtons laws are what works. Once you get into atomic physics and particle physics, those laws begin to get unstable and simply wrong.
Walter .
If you get down to typical speeds, Einstein's laws reduce to Newtonian laws.
cattbarf
No.
johnandeileen2000
Of course Newton's Laws had to be abandoned (in the sense that we now know them to be inaccurate) because they had been superseded by Relativity. Relativity is not based or derived from Newton's Laws, but because Newton's Laws work so well at low energies, any superseding theory must reduce to them at low energies. Indeed, the equations of Relativity reduce to Newton's Laws at speeds much less than light. Similarly, we know today that Quantum Mechanics and General Relativity are incommensurable; they cannot both be right, and yet they work incredibly well in their respective regimes. So there must be a greater theory (as yet undiscovered) that reduces to them both in their respective limits.
ZikZak
for our ordinary life, movement is too slow relative to the speed of light In practical way we use the Newton's law very valid
CPUcate
I do not believe so. Einstein was no fool. Einstein showed that Newton's laws were not universally applicable. I do not think that he said they should be abandoned. Actually, Einstein's theory includes some of Newton's laws. The first few terms of a series expansion of relativistic kinetic energy is equivalent to Newton. Newton's laws are still very valuable. Although Einstein's dynamic equations from the General and Special theories of relativity are useful and may be used for simple dynamic relationships, Newtons three laws are much easier to use... particularly the second (F=Ma). Einstein's theories, are useful in very high velocity and high energy cases. This is also true of the other great advances by phycisists in the early 20th century. Plank, Heisenberg, Bohr, Fermy, etc. It was only 13 years from the discovery of the neutron to the atomic bomb.
SeryyVolk
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