The inside of an igloo isn’t cold—they can get up to 60 degrees! Find out how!

The inside of an igloo isn’t cold—they can get up to 60 degrees! Find out how!

Usually when people picture an igloo, they imagine a dome with a little tunnel attached. This is surprisingly accurate! Igloos are surprisingly hospitable, and it all comes down to science.

Snow makes a surprisingly good insulator. When combined with ice to make the walls of the dome sturdy, it creates a cozy little environment. With the occupant’s body heat and perhaps the use of oil lamps or candles, the walls of the igloo melt a little, but then are soon frozen by the temperatures outside. Several days of this melting and refreezing process creates a nice insulation, sometimes of up to 60 degrees Fahrenheit, which is incredibly welcome when the weather outside is -50 degrees Fahrenheit!

(Source)

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