Why Igloos Keep You Warm: Building and Testing an Igloo

The video explores the differences in air content between powder and compact snow, demonstrating that powder snow contains more air. It then transitions to building an igloo, emphasizing the importance of using compact snow for structure and powder snow for insulation. The construction process includes creating a solid foundation, shaping snow blocks, and ensuring proper insulation. The video concludes with final touches to the igloo, including a cold trench to maintain warmth inside.

What technique is used to ensure that the snow blocks weld together during construction?

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What final touches are necessary to prepare the igloo for a comfortable night?

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Explain the concept of a cold trench and its purpose in igloo construction.

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