8 () posted 2 years ago by Love_Over_Fear 2 years ago by Love_Over_Fear +12 / -5 78 comments share 78 comments share save hide report block hide replies
The Earth's radius (r) is 6371 km or 3959 miles, based on numbers from Wikipedia, which gives a circumference (c)of c = 2 * π * r = 40 030 km
We wish to find the height (h) which is the drop in curvature over the distance (d)
Using the circumference we find that 1 kilometer has the angle 360° / 40 030 km = 0.009°. The angle (a) is then a = 0.009° * distance (d)
The derived formula h = r * (1 - cos a) is accurate for any distance (d)
https://earthcurvature.com/
@ 20 kms you should have a drop of about 100 feet
@ 20 miles you should have a drop of about 250 feet
There are plenty of examples around the Earth, over a body of water, where this doesn't add up at all
Zero curve
How
Explain why ships disappear bottom first over the horizon...
It’s just perspective!
You can bring them back into view with optical zoom, proving they aren’t blocked by any curve and is simply a matter of perspective
We are physically limited how far we can see due to atmospheric conditions and optical power
I’m driving rn but I’ll link a couple of videos explaining exactly what you’re asking about
This is very simple day one stuff and comes up in every flat earth discussion
I’ll get back to you shortly!
Did you really type that shit while driving? I hope you have a horrific accident that only involves you.