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from article Regolith
Diagram showing the components of residual regolith.
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from article Stereophonic radio transmission
Baseband spectrum of an FM stereo signal. This audio and supersonic spectrum is frequency-modulated onto a radio-frequency carrier.
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from article Video disk
DVD operational principles.
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from article Climate history
Plot of the average temperature for the contiguous United States during the month of August from 1895 to 2016. (Credit: NOAA)
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from article Climate history
Global temperature relative to peak Holocene temperature, based on ocean cores. (Credit: NASA)
Image
from article Airborne radar
Radar presentation showing a squall line extending from northwest to southeast. The range marks, indicating 5-mi (8-km) units, give estimation of extent of disturbance. (RCA Corp.)
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from article Airborne radar
High-resolution radar map of a golf course near Stockbridge, New York. (M.I.T.-Lincoln Laboratory)
Image
from article Mixer
Linear mixers. (a) Passive linear mixer based on a resistive summing network. (b) Active linear mixer with an operational amplifier.
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from article Mixer
Balanced modulator (nonlinear mixer). Only signal paths are shown. Biasing must be added.
Image
from article Weathering processes
Exchange-energy relationships between a rootlet and three minerals. (a) A potassium-bearing, primary silicate mineral. (b) A clay mineral well stocked with exchangeable metal cations. (c) A clay mineral scantily stocked with metal cations. The…
