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frebeach

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frebeach

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Thursday, 02/14/2013 3:21:03 AM

Thursday, February 14, 2013 3:21:03 AM

Post# of 2810
Building a railway on Permafrost


A Finnish young engineer takes a look how the problems were overcome...for now. Although high altitude problems were overcome, the future effects of global warming will be experienced in Northern Ontario, a much more sensitive area.



Dave F.
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