tgirlschierke@lemmy.blahaj.zone to 196@lemmy.blahaj.zoneEnglish · 23 hours agoPerfect Circrulelemmy.blahaj.zoneimagemessage-square74fedilinkarrow-up1715arrow-down15file-text
arrow-up1710arrow-down1imagePerfect Circrulelemmy.blahaj.zonetgirlschierke@lemmy.blahaj.zone to 196@lemmy.blahaj.zoneEnglish · 23 hours agomessage-square74fedilinkfile-text
minus-squareexpatriado@lemmy.worldlinkfedilinkEnglisharrow-up28·18 hours agoco-linear points can also be on a circumference, if you don’t mind infinite radius
minus-squareRichardDegenne@lemmy.ziplinkfedilinkEnglisharrow-up7·7 hours agoI was about to ask whether you can have three colinear points on a sphere, but then I remembered that the Earth is flat. Which brings me to another question. What does a circle on a Mercator projection looks like on a sphere?
minus-squareEcho Dot@feddit.uklinkfedilinkEnglisharrow-up1·3 hours agoIt’s still a circle but all the corners add up to 365°, and their where we get the days from.
minus-squareBrainsploosh@lemmy.worldlinkfedilinkEnglisharrow-up2·7 hours agoYou can test this at home. Draw a circle on a paper, wrap it around a ball. If you want the edge cases, draw the circle on a sheet of rubber (or maybe a plastic bag?) and stretch it over a ball.
minus-squareburntbacon@discuss.tchncs.delinkfedilinkEnglisharrow-up7·15 hours agoNon-euclidean planes say what?
co-linear points can also be on a circumference, if you don’t mind infinite radius
I was about to ask whether you can have three colinear points on a sphere, but then I remembered that the Earth is flat.
Which brings me to another question. What does a circle on a Mercator projection looks like on a sphere?
It’s still a circle but all the corners add up to 365°, and their where we get the days from.
You can test this at home. Draw a circle on a paper, wrap it around a ball.
If you want the edge cases, draw the circle on a sheet of rubber (or maybe a plastic bag?) and stretch it over a ball.
Non-euclidean planes say what?