All joking aside, I've wondered if tin foil really does block things and that's why it has gotten such flak.
Aluminum inside the body is very damaging. Outside the body, armor?
You'd have to cocoon yourself in foil if you want it to stop radio signals. If you just make the hat, you're allowing the signal in through your face only to bounce off the inside of the hat around your skull redirected like a satellite dish.
I think if you layer your house in sheet metal it will probably reflect a lot of things. I think you have to put up multiple layers though
I recently saw a house for sale with many, many acres that was a metal building. Maybe the guy is on to something.
220 Luther Jones Rd, Jackson, OH 45640
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