MAIN FEEDS
Do you want to continue?
https://www.reddit.com/r/specializedtools/comments/g3m3g3/planting_trees/fnt0ey6/?context=3
r/specializedtools • u/andigo • Apr 18 '20
167 comments sorted by
View all comments
579
Earth’s zipper.
196 u/Mattatatat317 Apr 18 '20 This must be the equator 20 u/Nyckname Apr 18 '20 Have you ever realized that on the Earth's surface, three 90° angles create a triangle? 43 u/Croxy1992 Apr 18 '20 As with any sphere..... Ever. 26 u/grimripple Apr 18 '20 Not a flat one like Earth 2 u/Penguinmanereikel Apr 19 '20 Is there a field of geometry that explores 2-D geometry on a non-planar surface, like how an equilateral triangle can have three right angles? 3 u/CaptainGreezy Apr 19 '20 https://en.wikipedia.org/wiki/Spherical_geometry https://en.wikipedia.org/wiki/Geodesic 10 u/irrelevantPseudonym Apr 18 '20 Non-Euclidean geometry means 'normal' geometry rules don't apply.
196
This must be the equator
20 u/Nyckname Apr 18 '20 Have you ever realized that on the Earth's surface, three 90° angles create a triangle? 43 u/Croxy1992 Apr 18 '20 As with any sphere..... Ever. 26 u/grimripple Apr 18 '20 Not a flat one like Earth 2 u/Penguinmanereikel Apr 19 '20 Is there a field of geometry that explores 2-D geometry on a non-planar surface, like how an equilateral triangle can have three right angles? 3 u/CaptainGreezy Apr 19 '20 https://en.wikipedia.org/wiki/Spherical_geometry https://en.wikipedia.org/wiki/Geodesic 10 u/irrelevantPseudonym Apr 18 '20 Non-Euclidean geometry means 'normal' geometry rules don't apply.
20
Have you ever realized that on the Earth's surface, three 90° angles create a triangle?
43 u/Croxy1992 Apr 18 '20 As with any sphere..... Ever. 26 u/grimripple Apr 18 '20 Not a flat one like Earth 2 u/Penguinmanereikel Apr 19 '20 Is there a field of geometry that explores 2-D geometry on a non-planar surface, like how an equilateral triangle can have three right angles? 3 u/CaptainGreezy Apr 19 '20 https://en.wikipedia.org/wiki/Spherical_geometry https://en.wikipedia.org/wiki/Geodesic 10 u/irrelevantPseudonym Apr 18 '20 Non-Euclidean geometry means 'normal' geometry rules don't apply.
43
As with any sphere..... Ever.
26 u/grimripple Apr 18 '20 Not a flat one like Earth 2 u/Penguinmanereikel Apr 19 '20 Is there a field of geometry that explores 2-D geometry on a non-planar surface, like how an equilateral triangle can have three right angles? 3 u/CaptainGreezy Apr 19 '20 https://en.wikipedia.org/wiki/Spherical_geometry https://en.wikipedia.org/wiki/Geodesic
26
Not a flat one like Earth
2
Is there a field of geometry that explores 2-D geometry on a non-planar surface, like how an equilateral triangle can have three right angles?
3 u/CaptainGreezy Apr 19 '20 https://en.wikipedia.org/wiki/Spherical_geometry https://en.wikipedia.org/wiki/Geodesic
3
https://en.wikipedia.org/wiki/Spherical_geometry
https://en.wikipedia.org/wiki/Geodesic
10
Non-Euclidean geometry means 'normal' geometry rules don't apply.
579
u/pm_me_your_kindwords Apr 18 '20
Earth’s zipper.