UNIVERSE AND DR. EINSTEIN, LINCOLN BARNETT, LONDON, 1949, PREFACE BY ALBERT EINSTEIN HIMSELF, PAGE 38 .
A revelation of universal law: The Velocity of Light Is Constant.
He began by rejecting the ether theory and with it the whole idea of space as a fixed system or framework, absolutely at rest, within which it is possible to distinguish absolute from relative motion. The one indisputable fact established by the Michelson-Morley experiment was that the velocity of light in unaffected by the motion of the earth. Einstein seized on this as a revelation of universal law. If the velocity of light is constant regardless of the earth's motion, he reasoned, it must be constant regardless of motion of any Sun, moon, star, meteor, or other syatem moving anywhere in universe. From this he drew a broader generalization, and asserted that the laws of nature are the same for alls uniformly moving system. This simple statement is the essence of Einstein's Special theory of Relativity.(Universe and Dr.Einstein,Lincoln Barnett,London,1949, preface by Albert Einstein himself, page 38)
The Speed of Light and the Index of Refraction
He began by rejecting the ether theory and with it the whole idea of space as a fixed system or framework, absolutely at rest, within which it is possible to distinguish absolute from relative motion. The one indisputable fact established by the Michelson-Morley experiment was that the velocity of light in unaffected by the motion of the earth. Einstein seized on this as a revelation of universal law. If the velocity of light is constant regardless of the earth's motion, he reasoned, it must be constant regardless of motion of any Sun, moon, star, meteor, or other syatem moving anywhere in universe. From this he drew a broader generalization, and asserted that the laws of nature are the same for alls uniformly moving system. This simple statement is the essence of Einstein's Special theory of Relativity.(Universe and Dr.Einstein,Lincoln Barnett,London,1949, preface by Albert Einstein himself, page 38)
The Speed of Light and the Index of Refraction
"Nothing can travel faster than the speed of light."
"Light always travels at the same speed."
Have you heard these statements before? They are often quoted as results of Einstein's theory of relativity. Unfortunately, these statements are somewhat misleading. Let's add a few words to them to clarify. "Nothing can travel faster than the speed of light in a vacuum." "Light in a vacuum always travels at the same speed." Those additional three words in a vacuum are very important. A vacuum is a region with no
matter in it. So a vacuum would not contain any dust particles (unlike a
vacuum cleaner, which is generally full of dust particles). (www.rpi.edu/dept/phys).
Speed of light is reduced cause by refraction when the starlight passing through the Earth's atmosphere. But the speed of gravity - for example in the event of tide-low tide due to the influence of the Moon - is not reduced even though passing through Earth's atmosphere and Moon's atmosphere. From this incident could be concluded that the speed of gravity faster than the speed of light. Therefore, 'nothing can travel faster than the speed of light in a vacuum' is not correct. The speed of gravity is infinity or gravity instataneous.
If gravitational waves exist, it is should be in the speed faster than c, speed of light in vacuum.
Speed of light is reduced cause by refraction when the starlight passing through the Earth's atmosphere. But the speed of gravity - for example in the event of tide-low tide due to the influence of the Moon - is not reduced even though passing through Earth's atmosphere and Moon's atmosphere. From this incident could be concluded that the speed of gravity faster than the speed of light. Therefore, 'nothing can travel faster than the speed of light in a vacuum' is not correct. The speed of gravity is infinity or gravity instataneous.
If gravitational waves exist, it is should be in the speed faster than c, speed of light in vacuum.
GPS Doesn't Need and Doen't Use Einstein's Theory of Special or General Relativity. Why? Let's see picture below:
Time-delay of light cause by refraction, not Gravity.
Dlr (in red curve) is a litle bit longer than Dso (in white straight line)
