Friday, November 1, 2013

On relativity

I'm not sure what to think of this datum. The result seems consistent with special relativity so I presume it's consistent with general relativity too, but then again I don't really understand the math for a rotating reference frame.

Note: On October, 1971, J. C. Hafele of Washington in St. Louis and Richard Keating of the US Naval Observatory in Washington, borrowed two cesium clocks from the Naval Observatory and bought each a first class found trip seat on commercial flights, one headed east, the other west.  The clocks were strapped into the seats and never moved again until they returned, nor were they observed in transit.  "The experiment may be the cheapest ever conducted" to test relativity, Scientific American explained. When the clocks were returned to Washington, the west bound clock had speeded up by 273 nanoseconds compared to an identical clock that remained at the Observatory, and the east bound clock had lost 59 nanoseconds. The previous position of Einstein was that "Moving clocks run slow", but there had been no prediction of a time difference depending on the direction of travel. The explanation by the relativity theorists involved a new frame of reference and a long defense as to what that reference frame was needed. Beckmann's theory predicted the time differences due to the travel of the clocks through Earth's gravitational field.

Deck thyself now with majesty and excellency; and array thyself with glory and beauty.
Cast abroad the rage of thy wrath: and behold every one that is proud, and abase him.
Look on every one that is proud, and bring him low; and tread down the wicked in their place.
Hide them in the dust together; and bind their faces in secret.
Then will I also confess unto thee that thine own right hand can save thee.

I could not love thee, dear, so much,
Loved I not Honor more.

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