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dinomite · 02-06-2001, 04:00 PM

Light does change speed by medium, thats why lenses (telescopes, glasses) work. Also, my thing on time travel: if it is EVER going to be invented, we would know cause they would travel back in time............

02-06-2001, 04:00 PM	#7
dinomite The Dude Join Date: Feb 2001 Location: Arlington, VA Posts: 1,262	Light does change speed by medium, thats why lenses (telescopes, glasses) work. Also, my thing on time travel: if it is EVER going to be invented, we would know cause they would travel back in time............