It either marginally blocks or massively amplifies depending entirely on the frequency.It's pretty much useless though given that pretty much all electromagnetic radiation would be able to just pass through your jaw into the brain even if the tin foil could block it anyway.
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Sat 2 May 2009, 23:07,
archived)
Just to be on the safe side,Enclose the entire head in a Faraday cage.
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Tribs 🦇 ↓ dn ʎɐʍ sᴉɥʇ ↓🦇,
Sat 2 May 2009, 23:09,
archived)