also, let us recall the two-and-a-half-page theorem, quite elementary, showing the isomorphism of induction & deduction, and a simple formula with which to interconvert, in *Mathematics Magazine* (MAA.org), thank you.
thus: a) Minowski's silly slogans about mere "4d phase-space, easily supplanted by quaternions (or "vector mechanics, the original"), and b) Newton's crap "theory of light, as masslees rocks." I mean, get over it.
> Curved spacetime is displaced aether.
thus: not even Hubble actually believed in this tripe; light must needs propogate through the electrons & positrons around nucleii & antinucleii of "free space," whose permeability & permitivity are similar to air's (but, even closer to "one, or Pascal's plenum, which he thought to be in his experimental apparatus").
Einstein's terminology of "photons" has always been needlessly shot through the lens of "massless rocks o'light" -- phooey -- starting with the big E., hisself, not to mention Newton's soi-dissant "theory of light."
> Start with Hubbles Law.
thus: why is Trickier Dick Cheney from the Nixon Administration, not questioned on his role in averting USA jetfighters from that pentagonal thingie in DC?
why do "truthers" not see the rather large difference in the type of construction of that, compared with "the world's tallest pair of buidlings?"
thus: I thought that you promoted the ideal, that the Arctic was "warming because of dereased albedo, due to less floating ice" -- even though this is terribly wrongsville. (there is no where, thereat; there is no why, thereby.)
just say, "the angle of total reflection of sunlight at the interface of air & water, viz Snell's law, thank you!..." I mean, that is two indices of refraction related trigonometrically -- just do it!