Special Relativity I
SR The Paper II
Special Relativity III
Special Relativity IV
Good anima--CShip
A very good Flash
The Twin Paradox
General Relativity I
General Relativity II
Giordano Bruno
Remi Hakim
Quantum mechanics is very impressive. But an inner voice tells me that it is not yet the real thing. The theory yields a lot, but it hardly brings us any closer to the secret of the Old One. In any case, I am convinced that He doesn't play dice.
"Absolute space, in its own nature, without relation to anything external, remains always similar and immovable. Relative space is some movable dimension or measure of the absolute spaces; which our senses determine by its position to bodies .. because the parts of space cannot be seen, or distinguished from one another by our senses, there in their stead we use sensible [i.e. perceptible by the sense] measures of them ... but in philosophical disquisitions, we ought to abstract from our senses, and consider things themselves, distinct from what are only sensible measures of them."
Isaac Newton
Inertial Frames of reference are frames where Newton's First Law is true.
That is, if an object experiences no net force, the object either remains at rest or continues
in motion with constant speed in a straight line.
What caused the downfall of Classical Physics?
. . .the hunt for the elusive Aether.
Set-up, Actual Experiment
It is ironic that Michelson himself wrote in 1899, "The more important fundamental laws and facts of physical reality have all been discovered and they are now so firmly established that the possibility of their ever being supplanted in consequence of new discoveries is exceedingly remote .... Our future discoveries must be looked for in the 6th place of decimals."
It's a new century. . .and scientists are putting their
collective experiences together.
Mechanical Universe
The astronaut dude sees the light beam go straight up to the mirror, bounce off the mirror and come straight down.
The earthly girl sees the light beam go at an angle up to the mirror, bounce off the mirror at an angle and come back down.
Which observer sees the light beam travel a longer path?
The speed of light has different values to different observers in relative motion.
or
The time and distance have different values for different observers in relative motion.
The Laws of Physics
are the same for all Observers
The Speed of Light is the same for all Observers
Problem
All velocities must be measured with respect to something else.
There is no such thing as an absolute velocity. Problem
The Paradox of Special Relativity
Special Relativity
Is time travel possible?
Has time run out on, Einstein?
Did Einstein cheat?
Faster than Light?
GPS, to the rescue!
ELEGANT UNIVERSE
