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2. Electromagnetic shielding - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_shielding

   The door of a microwave oven has a screen built into the window. From the perspective of microwaves (with wavelengths of 12 cm) this screen finishes a Faraday cage formed by the oven's metal housing. Visible light, with wavelengths ranging between 400 nm and 700 nm, passes easily through the screen holes.

3. Faraday cage - Wikipedia

   en.wikipedia.org/wiki/Faraday_cage

   When an external electrical field (arrows) is applied, the electrons (little balls) in the metal move to the left side of the cage, giving it a negative charge, while the remaining unbalanced charge of the nuclei give the right side a positive charge. These induced charges create an opposing electric field that cancels the external electric ...

4. Perforated metal - Wikipedia

   en.wikipedia.org/wiki/Perforated_metal

   Perforated metal has been utilized across a variety of industries including, but not limited to: Ceiling of Culture Palace (Tel Aviv) concert hall is covered with perforated metal panels Perforated steel Marston Matting airfield. Architectural - infill panels, sunshade, cladding, column covers, metal signage, site amenities, fencing screens ...

5. Window screen - Wikipedia

   en.wikipedia.org/wiki/Window_screen

   A window screen (also known as insect screen, bug screen, fly screen, flywire, wire mesh, or window net) is designed to cover the opening of a window. It is usually a mesh made of metal, fibreglass , plastic wire, or other pieces of plastic and stretched in a frame of wood or metal.

6. Shielded cable - Wikipedia

   en.wikipedia.org/wiki/Shielded_cable

   Four-conductor shielded cable with metal foil shield and drain wire. Coaxial cable. Electronic symbol for a shielded wire. A shielded cable or screened cable is an electrical cable that has a common conductive layer around its conductors for electromagnetic shielding. [1] This shield is usually covered by an outermost layer of the cable.

7. Mu-metal - Wikipedia

   en.wikipedia.org/wiki/Mu-metal

   Mu-metal shields for cathode-ray tubes (CRTs) used in oscilloscopes, from a 1945 electronics magazine. Mu-metal is a soft magnetic alloy with exceptionally high magnetic permeability. The high permeability of mu-metal provides a low reluctance path for magnetic flux, leading to its use in magnetic shields against static or slowly varying ...