what is levelling?
what is LED full meaning?
Answers
Answer: Levelling (British English) or leveling is a branch of surveying, the object of which is to establish ... The curvature of the earth means that a line of sight that is horizontal at the instrument will be higher and higher ... In the real gravity field of the Earth, this happens only approximately; on small loops typical of engineering ...
Explanation:
Answer:
Levelling is a process of determining the height of one level relative to another. It is used in surveying to establish the elevation of a point relative to a datum, or to establish a point at a given elevation relative to a datum.
Light-emitting diode {LED}
Visible LEDs are used in many electronic devices as indicator lamps, in automobiles as rear-window and brake lights, and on billboards and signs as alphanumeric displays or even full-colour posters
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