Astronomical Unit
Did you know in the 1700s astronomers used horizontal parallax to determine accurately the distance between the Sun and the Earth by using Venus traveling across the Sun.
MoveAlong · 70-79, M
Thanks for posting. I remember coming across this once somewhere. Weren't they only off by a few percentage points?
(please don't show me the geometry and math. It'll only make my head hurt)
(please don't show me the geometry and math. It'll only make my head hurt)
BiasForAction · M
I did not know that but that’s mighty impressive