Comment on Let π = 5
EddoWagt@feddit.nl 5 months agoWell, a r=10 and h=10 doesn’t mean much without units. 10 what? Feet? Meters? Inches? CM?
Its not supposed to mean anything, it’s about the equation not about the end result. We’re not calculating an actual cilinder
Tlaloc_Temporal@lemmy.ca 5 months ago
If we’re not calculating something useful, then why are we here and not in the library learing about the universe?
Better question: What curvature of space is necessary for the apparent value of π to be 5?
MinekPo1@lemmy.ml 5 months ago
honestly I don’t know if there is any way to measure curvature of space , but its slightly more curved than the surface of a ball (where π=~4.712)
MBM@lemmings.world 5 months ago
Kind of curious how you got that value. I think the ratio of circumference to diameter (“pi”) is actually smaller in spherical geometry, in the most extreme case (the equator) it’s just 1. You could say “pi = 5” for circles of a specific radius in hyperbolic geometry, I guess.
MinekPo1@lemmy.ml 5 months ago
my mistake was using the sum of angles in a triangle which was kinda dum but whatever . I also tried calculating via the circumstance of a circle placed at a pole where π was 20x smaller for the case I was using but its not linear so I looked deeper which was a big mistake .
BTW the ratio of circumstance to radius for a circle which is also an equator of the space is ¼ not 1 (r=½π₀ , C=2π₀) .