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2. Faraday cage - Wikipedia

   en.wikipedia.org/wiki/Faraday_cage

   A Faraday cage or Faraday shield is an enclosure used to block some electromagnetic fields. A Faraday shield may be formed by a continuous covering of conductive material, or in the case of a Faraday cage, by a mesh of such materials. Faraday cages are named after scientist Michael Faraday, who first constructed one in 1836. [1]

3. Electromagnetic shielding - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_shielding

   A conductive enclosure used to block electrostatic fields is also known as a Faraday cage. The amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of holes in a shield to an incident electromagnetic field.

4. Shielded cable - Wikipedia

   en.wikipedia.org/wiki/Shielded_cable

   The shield acts as a Faraday cage – a surface that reflects electromagnetic radiation. This reduces both the interference from outside noise onto the signals and the signals from radiating out and potentially disturbing other devices (see electromagnetic compatibility).

5. Equipotential - Wikipedia

   en.wikipedia.org/wiki/Equipotential

   In electrostatics, a conductor is a three-dimensional equipotential region. In the case of a hollow conductor (Faraday cage [4]), the equipotential region includes the space inside. A ball will not be accelerated left or right by the force of gravity if it is resting on a flat, horizontal surface, because it is an equipotential surface.

6. Tin foil hat - Wikipedia

   en.wikipedia.org/wiki/Tin_foil_hat

   A man wearing a tin foil hat. A tin foil hat is a hat made from one or more sheets of tin foil or aluminium foil, or a piece of conventional headgear lined with foil, often worn in the belief or hope that it shields the brain from threats such as electromagnetic fields, mind control, and mind reading.

7. A Cold War-era bomb shelter in Florida has new owners. What's ...

   www.aol.com/cold-war-era-bomb-shelter-100924902.html

   Some of the telecommunication equipment was shielded by a Faraday cage, a metal meshwork designed to deflect a nuclear electromagnetic pulse that can fry electronics.