>>2587850 (last bread)

>>2587966

I will answer if he doesnt. Very simple.

The reason a sextant has worked for centuries in navigation is simple.

THE STARS HAVE NOT CHANGED LOCATIONS EVER, EVER, EVER.

The sky spins in a perfect circle above our head.

THIS IS WHY THE SEXANT always works.

You are dececption. we are the cure.

Spherical trigonometry is real. Sadly, for you, no

servayor ever uses it. Once again, try harder.

kek

>>2588158 (last bread)

>>2588115

The source is listed on the meme itself.

Blind?

www.dtic.mil

type in "atmospheric refraction errors for otptical instrumentation," into any search engine

and the OFFICIAL document will show up.