View Single Post
Old 05-29-2012, 11:55 AM   #107
Sil_liS
Wizard
Sil_liS ought to be getting tired of karma fortunes by now.Sil_liS ought to be getting tired of karma fortunes by now.Sil_liS ought to be getting tired of karma fortunes by now.Sil_liS ought to be getting tired of karma fortunes by now.Sil_liS ought to be getting tired of karma fortunes by now.Sil_liS ought to be getting tired of karma fortunes by now.Sil_liS ought to be getting tired of karma fortunes by now.Sil_liS ought to be getting tired of karma fortunes by now.Sil_liS ought to be getting tired of karma fortunes by now.Sil_liS ought to be getting tired of karma fortunes by now.Sil_liS ought to be getting tired of karma fortunes by now.
 
Posts: 4,896
Karma: 33602910
Join Date: Oct 2010
Device: PocketBook 903 & 360+
Quote:
Originally Posted by murraypaul View Post
That is circular reasoning. The only reason we use lightyears is because we measure time in years. If we measured time only in hours, we'd use lighthours instead.
We are measuring time in years and days and hours and minutes and seconds. The choice of describing the distances between stars and galaxies by lightyears has to do with the order of magnitude of the unit of measure. The terms lightday and lighthour and lightsecond are also used, but they are not the best choice for measuring the distance between galaxies.

How do you suppose that we wouldn't measure time in years? Do you assume that we would have no desire to determine the time necessary for our planet to go around the sun?
Sil_liS is offline   Reply With Quote