This Is What An Igloo Looks Like When You Build A Fire Inside. The Fire Inside Melts The Inner Layer Of Ice, And The Cold Outside Refreezes It, Adding A Layer Of Insulation That Can Keep The Igloo At 60° Inside While It's -50° Outside

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  submitted by   /u/ConfidentPair8141   to   r/Damnthatsinteresting [link]   [comments]