Blaze@reddthat.com to Map Enthusiasts@sopuli.xyzEnglish · 1 month agoTimezone changes between 1923 and 2023files.catbox.moeimagemessage-square45fedilinkarrow-up1211arrow-down16
arrow-up1205arrow-down1imageTimezone changes between 1923 and 2023files.catbox.moeBlaze@reddthat.com to Map Enthusiasts@sopuli.xyzEnglish · 1 month agomessage-square45fedilink
minus-squarederpgon@programming.devlinkfedilinkarrow-up4arrow-down1·29 days agoActually every 463 meters. 40 075km is circumference of Earth. There are 24x60x60 seconds in a day. 40 075×1 000÷(24×60 ×60) =~ 463.8
minus-squareCaspase8@aussie.zonelinkfedilinkarrow-up8·29 days agoWouldn’t it depend on latitude? It would be much less than 463 metres at the latitudes of Europe
minus-squareSuccessful_Try543@feddit.decakelinkfedilinkEnglisharrow-up1·edit-229 days agoYes, distance of 1" on equator (463.8 m) × cosine of latitude longitude. This means approximately 350 m in Rome, 285,6 m in Berlin and 232 m in Helsinki. In reality a bit less, as I didn’t take the ellipsoid shape of the globe into account.
Actually every 463 meters.
40 075km is circumference of Earth. There are 24x60x60 seconds in a day.
40 075×1 000÷(24×60 ×60) =~ 463.8
Wouldn’t it depend on latitude? It would be much less than 463 metres at the latitudes of Europe
Yes, distance of 1" on equator (463.8 m) × cosine of latitude
longitude. This means approximately 350 m in Rome, 285,6 m in Berlin and 232 m in Helsinki. In reality a bit less, as I didn’t take the ellipsoid shape of the globe into account.