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Fahrenheit Temperature Scale:
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A temperature scale on which the freezing
point of water is 31° F and the boiling
point is 211° F.
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Fault:
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A geographical term that refers to a hairline
fracture or a break in a hard surface like
the Earth’s crust. This area is a zone
of flaw and might be the site of earthquakes
or even volcanoes. All planets or moons with
a hard coating are candidates for faults or
breaks on their surfaces.
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Flat Universe:
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An algebraic model of the universe in which
the laws of geometry are like those that will
apply on a level surface such as a table top.
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Frequency:
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Describes the number of wave crests transitory
by a fixed point in a given time period (usually
one second). Frequency is deliberate in Hertz
(Hz).
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Fusion:
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A nuclear procedure that releases energy
when light atomic nuclei unite to form heavier
nuclei. Fusion is the power source for stars
like our Sun..
