No it doesn't. In practice they often are, but it's not necessary to block a sig... | Hacker News

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		sarchertech on Nov 30, 2017 \| parent \| context \| favorite \| on: Australian uses snack bags as Faraday cage to bloc... No it doesn't. In practice they often are, but it's not necessary to block a signal from outside the cage.

pishpash on Nov 30, 2017 [–]

grounding may be a safety issue.

sarchertech on Nov 30, 2017 | [–]

That's one of the reasons. A charge can build up on the cage, but that shouldn't be a problem with small cage around a cellphone.

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