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A comment on Hyperloop. Parent comment

Re:Hyperloop by Daniel_Newby on Tuesday August 13, 2013 @03:20AM (#6204421)
I wonder why they do not use ice. Melt it as a heat sink in normal operation, and vent it to the tunnel for emergency evaporative cooling.
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Re:Hyperloop by marshray on Thursday August 15, 2013 @02:01AM (#6216381)
Room-temperature water is readily available, easier to handle, and works almost as well.
[ Parent | on HN ]