[net.religion] C as constant

keesan@bbncca.ARPA (Morris Keesan) (10/25/83)

Well, the international standards community certainly considers the speed of
light to be a constant.  This weeks's _S_c_i_e_n_c_e_ _N_e_w_s reports that the official
international definition of a meter is a specific fraction of the speed of
light in a vacuum.  The meter was previously defined in terms of the wavelength
of a particular color of light, with a specification of how to produce that
wavelength, and prior to that the meter was defined as the distance between
two marks on a platinum-iridium bar kept somewhere in Paris.