Does tin foil block electromagnetic waves (to a notable degree)?
Feb 17, 2010 at 10:08 PM Thread Starter Post #1 of 26

3602

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Nothing, just curious... Tin foil hats.
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Feb 17, 2010 at 11:15 PM Post #6 of 26
It keeps the MLB from spying on me.
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Feb 17, 2010 at 11:18 PM Post #7 of 26
Also it's dependent on the shape of the antenna as to the kind of signal it can/will pick up with the highest efficiency. Also the shape of the antenna will have an effect as well.
 
Feb 18, 2010 at 12:55 AM Post #11 of 26
Quote:

Originally Posted by 3602 /img/forum/go_quote.gif
Have cellphone not. I'll try a Wi-Fi emitter.
BTW, how to make a directional antenna with aluminium foil?



Do a search. You can do that w/ a Pringles can.
 
Feb 18, 2010 at 2:29 AM Post #14 of 26
Quote:

Originally Posted by Born2bwire /img/forum/go_quote.gif
It doesn't need to be grounded.


You're right, it doesn't need to be grounded, but in many instances, grounding can improve the shielding.
 
Feb 18, 2010 at 3:18 AM Post #15 of 26
If you wrap something in anything metal it will form a faraday cage and block almost all EM waves. The object must be enclosed though. Not sure what that says about hats...
 

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