Nancy Dubuc quote ✍️

Quote

Historically, we've had to think in increments of 30 or 60 minutes. And now we have to think in increments of six seconds to six hours and everything in between.
Section of a curve
?
A
?
R
?
C
Hint 1 meaning
The apparent arc described, above or below the horizon, by the sun or other celestial body. The diurnal arc is described during the daytime, the nocturnal arc during the night.
Hint 2 anagram
ACR
Hint 3 another clue
AID WHEN GOING TO COURT
8 +2

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