Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.



Re: PAINFUL DOUBLETHINK IN EINSTEINIANA
Posted:
Apr 18, 2013 3:16 AM


http://ebooks.adelaide.edu.au/o/orwell/george/o79n/chapter2.9.html "Doublethink means the power of holding two contradictory beliefs in one's mind simultaneously, and accepting both of them. (...) ...with the lie always one leap ahead of the truth."
The truth:
http://www.pitt.edu/~jdnorton/teaching/HPS_0410/chapters/general_relativity_pathway/index.html John Norton: "In 1907, Einstein had also concluded that the speed of light, and not just its direction, would be affected by the gravitational field."
http://sethi.lamar.edu/bahrimcristian/Courses/PHYS4480/4480PROBLEMS/opticsgravitlens_PPT.pdf Dr. Cristian Bahrim: "If we accept the principle of equivalence, we must also accept that light falls in a gravitational field with the same acceleration as material bodies."
http://www.youtube.com/watch?v=FJ2SVPahBzg "The light is perceived to be falling in a gravitational field just like a mechanical object would. (...) The change in speed of light with change in height is dc/dh=g/c."
The lie:
http://www.amazon.com/WhyDoesmc2ShouldCare/dp/0306817586 Brian Cox, Jeff Forshaw, p. 236: "If the light falls in strict accord with the principle of equivalence, then, as it falls, its energy should increase by exactly the same fraction that it increases for any other thing we could imagine dropping. We need to know what happens to the light as it gains energy. In other words, what can Pound and Rebka expect to see at the bottom of their laboratory when the dropped light arrives? There is only one way for the light to increase its energy. We know that it cannot speed up, because it is already traveling at the universal speed limit, but it can increase its frequency."
http://www.oapt.ca/newsletter/200402%20Newsletter%20Searchable.pdf Richard Epp: "One may imagine the photon losing energy as it climbs against the Earth's gravitational field much like a rock thrown upward loses kinetic energy as it slows down, the main difference being that the photon does not slow down; it always moves at the speed of light."
http://www.amazon.com/BriefHistoryTimeStephenHawking/dp/0553380168 Stephen Hawking, A Brief History of Time, Chapter 6: "A cannonball fired upward from the earth will be slowed down by gravity and will eventually stop and fall back; a photon, however, must continue upward at a constant speed..."
Pentcho Valev



