On Mon, Jul 18, 2016 at 9:55 AM, Marko Rauhamaa <ma...@pacujo.net> wrote: > Marko Rauhamaa <ma...@pacujo.net>: > >> Ian Kelly <ian.g.ke...@gmail.com>: >>> Off-topic, c being a fundamental constant is actually in the latter >>> category. Its *exact* value is 299792458 m/s. >>> >>> The length of the meter, on the other hand, is defined as the distance >>> traveled by light in a vacuum in 1/299792458 seconds and is subject to >>> the precision of measurements. >> >> Since both c and the second are exact magnitudes, so is the meter. >> >> The second [...] is quantitatively defined in terms of exactly >> 9,192,631,770 periods of a certain frequency of radiation from the >> caesium atom: a so-called atomic clock. >> <URL: https://en.wikipedia.org/wiki/Second> > > Which would became immediately apparent if you programmed in Scheme. One > meter is equal to the wavelength of said magnitude times:
Okay, so how is that wavelength defined? If you needed to mark a meter stick, and all you had was the definition of c and the second, how would you do it without measuring anything? -- https://mail.python.org/mailman/listinfo/python-list
