ON AIR |> 010.05.21
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http://ubu.artmob.ca/sound/russell_bertrand/Russell-Bertrand_Relativity_01-Touch-and-Sight-Earth-and-the-Heavens.mp3
http://ubu.artmob.ca/sound/russell_bertrand/Russell-Bertrand_Relativity_02-What-Happens-and-What-Is-Observed.mp3
http://ubu.artmob.ca/sound/russell_bertrand/Russell-Bertrand_Relativity_03-The-Velocity-of-Light.mp3
http://ubu.artmob.ca/sound/russell_bertrand/Russell-Bertrand_Relativity_04-Clocks-and-Foot-Rules.mp3