A warm house made of snow – how does an igloo work?
These houses built with large blocks of pressed snow can be perfect temporary shelters or even someone's home. But how is it possible to keep a structure built of snow warm inside? And why don't it melt? Here are all the answers.
The most effective igloos are build from snow, not ice
It's all about the shape, which is called a catenoid
Why doesn't it melt inside?
What is the interior like?
Another important thing is a small hole at the very top of the shelter – if you use fire to warm the place up, you need to get rid of the smoke. Even with the fire an igloo won't melt – it is located at the very center of the shelter, as far as possible from the walls.
What's the temperature inside?
Would you try to build an igloo? And would you spend a night in a shelter like this?
We are waiting for your comments!
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