Some of the technological applications of superconductivity include: the production of sensitive magnetometers based on SQUIDs fast digital circuits (including those based on Josephson junctions and rapid single flux quantum technology), powerful superconducting electromagnets used in maglev trains, Magnetic Resonance Imaging (MRI) and Nuclear ...
An antenna (plural antennae or antennas), or aerial, is an electrical device which converts electric power into radio waves, and vice versa. It is usually used with a radio transmitter or radio receiver.
Outdoor antennas, especially those on a roof or mast, generally offer the best performance, particularly if you're many miles from a broadcast tower. But an indoor antenna is easier to set up, and for some people it's the only option. Getting great reception from an indoor TV antenna can be a mix of science and art, however. Here's what you need to do.