Quantum Entanglement and Spooky Action at a distance

See the basic setup The math derived here.

————– distance = X nanoseconds light velocity ————–

Imagine you and a friend agree to go to separate locations and flip a coin and record on a clip board what you get. Imagine afterward you get together and compare notes and see that the entire list is identical ?

That is what essentially what happens when two entangled photons separate and they go through polarizers at the end of their paths.

Video: Bell's Inequality and Photon Entanglement Video

Interesting points of note in the video

pop bottle bottom glasses on 70's guy!
Eigenvalues of a quantum mechanical solution are what you can observe. You never observe solutions that are combinations of eigenvalues.
StarTrek looking test apparatus mock up. Scotty would have felt at home fixing this bugger!
Einstein did not like ghostly action at a distance. EPR
Assume quantum theory is incomplete: Look for a hidden variable. Photon pairs are emitted with a shared equal hidden parameter.
Theories using hidden variables have been created that preserve locality and realism
Experiments that only test perfect correlations do not force us to choose between quantum explanation and hidden variable method
John Bell was the first person to show how to bring the two theories into conflict so they could be tested
Testing perfect correlations are tantamount to looking at one sock and seeing it is blue and concluding the sock on the other foot is blue
Imperfect correlations: set the target polarizers at unequal angles.
Alain Aspect and company tested Bell's Theorem
Tunable lasers were required for this test setup