heliostat Definition

photocell, photovoltaic, collimator, reflector, interferometer, astronomical telescope, retroreflector, earthshine, radiometer, sunlight, photodetector, irradiance, parabolic mirror, collimating, parabolic reflector, photomultipliers, illuminance, phototransistor, josephson junction, fresnel lens, photometer, monochromator, polarimeter, photodiode, photomultiplier, plasmon, calorimetric, klystron, photoelectron, arrays, heterodyne, fresnel, inverter, photocurrent, bistable, emittance, transmissivity, iris diaphragm, infrared, electroluminescence, gnomon, pyrometer, diffraction grating, microbalance, luminous flux, fluorescent lamp, photometry, airglow, pentile, wavefront, coronagraph, resonant cavity, polyphase, electron optics, bolometer, variable resistor, dipole moment, enthalpy, ammeter, backscattering, galvanometer, photolithographic, celestial sphere, demultiplexer, gimbals, digital voltmeter, zodiacal light, semiconducting material, terawatt, cytometer, solarization, lightwave, cadmium sulfide, blackbody, thyristor, fluorometer, inertial navigation, cartesian coordinates, nonvolatile storage, galvo, electron accelerator, infrared ray, stroboscope, toroid, microwatt, spectroscope, magnetisation, thermopile, crystal oscillator, scintillator, linac, reflectometer, quadrature, directional antenna, kilowatt, quasicrystal, piezoelectric crystal, epsilon aurigae, periodicities, strain gage,