Thread: Ringworld ?
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Old 23-10-2009, 06:40 PM
gmbfilter (Geoff)
Geoff

gmbfilter is offline 		 
Join Date: Mar 2007
Location: South Tacoma NSW
Posts: 571
Ringworld ?
I was just listening to this on RN http://www.abc.net.au/worldtoday/con...9/s2722423.htm

Larry Niven had it first!
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