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Space flight
Of or relating to the act of voyaging outside the Earth's atmosphere and into outer space, and the science involved in achieving it.
Industry: Aerospace
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Space flight
si derived unit
Aerospace; Space flight
One of many SI units of measure expressed as relationships of the SI base units. For example, the watt, W, is the SI derived unit of power. It is equal to joules per second. W = m2 ⋅ kg ⋅ s–3 ...
si base unit
Aerospace; Space flight
One of seven SI units of measure from which all the other SI units are derived. See SI derived unit.
set
Aerospace; Space flight
As in going below the horizon, for the technical definition, please follow this link to the U.S. Naval Observatory's Astronomical Applications.
semi-major axis
Aerospace; Space flight
Half the distance of an ellipse's maximum diameter, the distance from the center of the ellipse to one end.
