hall effect sensor
81Fast ion conductor — Fast ion conductors, also known as solid electrolytes and superionic conductors, are solid state electrical conductors which conduct due to the movement of ions through voids (or empty crystallographic positions)in their crystal lattice. One… …
82Ignition timing — in an internal combustion engine is the process of setting the time that a spark will occur in the combustion chamber (during the power stroke) relative to piston position and crankshaft angular velocity. Setting the correct ignition timing is… …
83Cyclocomputer — A basic cyclocomputer showing speed and Odometer readings …
84Computer keyboard — A key being pressed on a computer keyboard. In computing, a keyboard is a typewriter style keyboard, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches. Following the decline of punch cards and paper… …
85Microwave power meter — A microwave power meter is an instrument which measures the electrical power at microwave frequencies. Usually a microwave power meter will consist of a measuring head which contains the actual power sensing element, connected via a cable to the… …
86Mars Polar Lander — Artist depiction of Mars Polar Lander on Mars. Operator NASA / JPL Major contractors Martin Marietta …
87Brushless DC electric motor — A microprocessor controlled BLDC motor powering a micro remote controlled airplane. This external rotor motor weighs 5 grams, consumes approximately 11 watts (15 millihorsepower) and produces thrust of more than twice the weight of the plane …
88Electric current — Electromagnetism …
89Cryogenic current comparator — The cryogenic current comparator (CCC) is used in the electrical precision measurements to compare electric currents and/or to determine electric current ratios with highest accuracy. This device exceeds the accuracy of other current comparators… …
90Список лауреатов Нобелевской премии по физике — Реверс медали, вручаемой лауреатам Нобелевской премии по физике и химии Нобелевская премия по физике (швед. Nobelpriset i fysik)  престижная награда, ежегодно вручаемая Нобелевским фондом за научные достижения в области физики. Одна из пяти… …
