Interesting idea. I'd be curious how long it can maintain that levitation. 20-30 seconds is a long time to be compressing and blowing air with not no real warning. And if effective, how quickly would it blow the electrical grid to have half the houses in a town suddenly start drawing that much power at exactly the same time.
The picture doesn't show what happens to all the utility connections from the house to the ground. I imagine they can be built with slack but they'd be torquing on the house while it floated and there's a non-zero chance that the part of the house attached to the ground will have moved when it comes back down.
I assume those are all dealt with and not explained in a 300 word article, but they're the questions that come immediately to mind.
And just proves that Carl from Up was ahead of his time.
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