Function
Okno is a facility for tracking and monitoring man-made space objects. The Russian military claims that it automatically detects objects at altitudes between 2,000 kilometres (1,200 mi) and 40,000 kilometres (25,000 mi). This is above low Earth orbit and includes satellites in medium Earth orbit, geostationary orbit and some in high Earth orbit. It only works at night and works passively by picking up reflected sunlight off objects.
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Famous quotes containing the word function:
“Science has fulfilled her function when she has ascertained and enunciated truth.”
—Thomas Henry Huxley (1825–95)
“Philosophical questions are not by their nature insoluble. They are, indeed, radically different from scientific questions, because they concern the implications and other interrelations of ideas, not the order of physical events; their answers are interpretations instead of factual reports, and their function is to increase not our knowledge of nature, but our understanding of what we know.”
—Susanne K. Langer (1895–1985)
“To look backward for a while is to refresh the eye, to restore it, and to render it the more fit for its prime function of looking forward.”
—Margaret Fairless Barber (1869–1901)