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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. Transmitter station - Wikipedia

   en.wikipedia.org/wiki/Transmitter_station

   For transmitter stations working on frequencies below 30 MHz a good grounding is required for good function and sometimes excessive grounding systems are used. In most cases, it is desirable to connect the rods to each other to form a simple Faraday cage. But in high altitude stations, the ground is usually rocky and finding an appropriate ...

5. Faraday's ice pail experiment - Wikipedia

   en.wikipedia.org/wiki/Faraday's_ice_pail_experiment

   [4] [5] It also demonstrates the principles behind electromagnetic shielding such as employed in the Faraday cage. [6] [7] The ice pail experiment was the first precise quantitative experiment on electrostatic charge. [8] It is still used today in lecture demonstrations and physics laboratory courses to teach the principles of electrostatics. [9]

6. Mast radiator - Wikipedia

   en.wikipedia.org/wiki/Mast_radiator

   By the 1940s the AM broadcast industry had abandoned the Blaw-Knox design for the narrow, uniform cross section lattice mast used today, which had a better radiation pattern. It was found that reducing the height of the monopole mast from 225 electrical degrees to 190 degrees could eliminate the high angle radio waves that caused fading.

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

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

   Residents near a Cold War-era nuclear bomb shelter are wondering what the property's new owners are doing on the other side of the chain-link fence topped by barbed wire.