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18 votes

How do I know how to describe my position on the airport when I contact ATC?

air-traffic-control radio-communications phraseology asked Apr 20, 2020 at 0:53
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Recording Spectral Lines at Home

telescope spectroscopy spectra asked Jun 10, 2019 at 19:23
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Simplify, equivalent for (p ∨ ¬q) ∧ (¬p ∨ ¬q)
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