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Chaff, originally called Window [1] or Düppel, is a radar countermeasure involving the dispersal of thin strips of aluminium, metallized glass fiber, or plastic. [2] Dispersed chaff produces a large radar cross section intended to blind or disrupt radar systems.
In modern fencing, the piste or strip is the playing area. Regulations require the piste to be 14 metres long and 1.5 metres wide. [1] [2] The last two metres on each end are hash-marked to warn a fencer before they back off the end of the strip, after which is a 1.5 to 2 metre runoff.
Aluminium 7150 alloy is a heat treatable wrought alloy. It is used in the aerospace industry for manufacturing aircraft components. Heat treatment can improve its anti- corrosion properties with a low corresponding decrease in strength .
For a given metal surface, there exists a certain minimum frequency of incident radiation below which no photoelectrons are emitted. This frequency is called the threshold frequency. Increasing the frequency of the incident beam increases the maximum kinetic energy of the emitted photoelectrons, and the stopping voltage has to increase.
In heavy-duty industrial high-current applications, a grid resistor is a large convection-cooled lattice of stamped metal alloy strips connected in rows between two electrodes. Such industrial grade resistors can be as large as a refrigerator; some designs can handle over 500 amperes of current, with a range of resistances extending lower than ...
A shunt is a device that is designed to provide a low-resistance path for an electrical current in a circuit.It is typically used to divert current away from a system or component in order to prevent overcurrent.