Last edited Fri Sep 22, 2017, 09:09 PM - Edit history (2)
What if we find time travelers, instead of space travelers, after knocking on Heaven's door?
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A 20th century scientist, Albert Einstein, developed the Theory of Relativity. The Theory of Relativity is difficult to understand, but scientists claim to have confirmed the equation, E = mc2. This theory says that space and time are - in fact - aspects of the same thing.
In 1905, Albert Einstein determined the laws of physics are the same for all non-accelerating observers, and the speed of light - in a vacuum - was independent of motion. This is The Theory of Relativity, which introduced a new framework for physics and proposed new concepts of space and time.
Then, Einstein spent 10 years attempting to include acceleration in the theory and published his Theory of Relativity, in 1915. He determined that massive objects cause a distortion in space-time, which is felt as gravity.
"Gravity" is a natural law; not a theory, which was proven by Sir Isaac Newton, in 1687, in a document named
Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy).
Newton's laws of motion are three physical laws, which laid the foundation for classical mechanics. They describe the relationship between a body and motion responding to those forces.
(1) Every object moves in a straight line unless acted upon by a force.
(2) The acceleration of an object is directly proportional to the net force exerted and inversely proportional to the object's mass.
(3) For every action, there is an equal and opposite reaction.
Finally, let's meet some time travelers, in an interesting movie:
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