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Innovative Products
It looks like a potato. It could provide a good emergency shelter in time of disaster. But it must be pretty heavy--not really for typical camping out.
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Such devices are portable. We had a friend we worked with who built a concrete boat as an ocean-going vessel for an around-the-world tour. I guess it is easy to build and very seaworthy. The largest was the 345ft long, 48ft wide, 26ft 7in high Gu Tian.

Building with concrete is easy - but the chemistry must be engineered correctly with the right support structure.
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This is an interesting video, which shows that mimicking nature can have some nice side effects.

See How Termites Inspired a Building That Can Cool Itself | National Geographic


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"INSIDE EVERY PROGRESSIVE IS A TOTALITARIAN SCREAMING TO GET OUT" - David Horowitz

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