Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object. In modern usage, the term generally refers to the use of aerial sensor technologies to detect and classify objects on Earth (both on the surface, and in the atmosphere and oceans) by means of propagated signals (e.g. electromagnetic radiation emitted from aircraft or satellites).
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Famous quotes containing the words remote and/or sensing:
“We are no longer Christians: we have outgrown Christianity not because we have been too remote from it but rather because we have been too close—it is precisely our more stringent and more fastidious piety that forbids us to remain Christians nowadays.”
—Friedrich Nietzsche (1844–1900)
“Something was still there, that something that distinguishes an artist from a performer: the revealing of self. Here I be. Not for long, but here I be. In sensing her mortality, we sensed our own.”
—Studs Terkel (b. 1912)