How solid are igloos?
The walls of an igloo, made entirely of natural material, stand up better to modern artillery than a concrete barricade, according to tests conducted by a Swedish army. The walls absorb an artillery blast, are almost invisible from the air, and can't be spotted by the infrared sensors that guide today's missiles.
The walls of an igloo, made entirely of natural material, stand up better to modern artillery than a concrete barricade, according to tests conducted by a Swedish army. The walls absorb an artillery blast, are almost invisible from the air, and can't be spotted by the infrared sensors that guide today's missiles.
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