tgirlschierke@lemmy.blahaj.zone to 196@lemmy.blahaj.zoneEnglish · 2 days agoPerfect Circrulelemmy.blahaj.zoneimagemessage-square94fedilinkarrow-up1860arrow-down16file-text
arrow-up1854arrow-down1imagePerfect Circrulelemmy.blahaj.zonetgirlschierke@lemmy.blahaj.zone to 196@lemmy.blahaj.zoneEnglish · 2 days agomessage-square94fedilinkfile-text
minus-squareRichardDegenne@lemmy.ziplinkfedilinkEnglisharrow-up9·1 day 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-up2·1 day 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-up2·1 day 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.
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.