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Energy shield from the game Second Life. In speculative fiction, a force field, sometimes known as an energy shield, force shield, energy bubble, or deflector shield, is a barrier produced by something like energy, negative energy, dark energy, electromagnetic fields, gravitational fields, electric fields, quantum fields, telekinetic fields, plasma, particles, radiation, solid light, magic, or ...
A cold shield is a device to protect an object from unwanted heating by thermal radiation or light. Usually it is a cooled object with low absorption and high reflectivity . Schematic diagram showing a cross section of a black cold shield reducing the thermal radiation on a point detector
In The Making of Star Trek, authors Gene Roddenberry and Stephen Whitfield write that shields are force fields similar in nature to the navigational deflector, while Mr. Scott's Guide to the Enterprise further states that shields on post-refit Constitution-class vessels - of which the USS Enterprise of Star Trek: The Original Series is an ...
The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]
A two-stage air conditioner is designed to operate on high and low settings during different weather conditions and seasons. The high setting is used during extreme weather, and the low setting is used during moderate weather. This type of air conditioner produces a balanced temperature and is in use for a longer period of time.
Deflector may refer to: Fire screen; Jet blast deflector; Shields ; Wind deflector; See also. All pages with titles beginning with Deflector ;