USA HISTORY

Detailed explanation-1: -An igloo of Eskimos is built with blocks of ice made with compressed snow. Snow is flaky and contains air inside. When compressed, these particles form comparatively stronger ice blocks. You will be surprised to know that the snow blocks contain almost 95% air.

Detailed explanation-2: -Compared to ice, the snow that you compact in your hands is 100 times more insulating and therefore keeps the heat inside the igloo. The Eskimos make compacted snow bricks (not too much) to make the igloos. In the igloo, the heat stays inside instead of passing through the walls.

Detailed explanation-3: -Temperatures outside can sometimes reach up to minus 45 degrees (chilly!), however, inside an igloo, the temperature can be anywhere between minus 7 and 16 degrees because of your body heat. It’s not going to be warm enough for a t-shirt, however, it’s much warmer than being outside the igloo.

Detailed explanation-4: -Igloos are built out of bricks of ice. Unlike solid ice, which is a poor insulator for heat, all the compressed snow has more air pockets, making it a perfect insulator. All the cool air in an igloo goes to the bottom part and stays there. This means the upper area of the igloo remains warm.

Detailed explanation-5: -ig·loo ˈig-lü plural igloos. : an Eskimo house usually made of wood, sod, or stone when permanent or of blocks of snow or ice in the form of a dome when built for temporary use.