stevefaeembra,
@stevefaeembra@mapstodon.space avatar

Animation showing rings equidistant from . and .

Used QGIS "Shape Tools" plugin to make the geodesic rings. It also has a nifty feature to fix discontinuities/artifacts along 180 E/W. Worth installing for that alone. 🙂

Animation lasts ~7 secs, light takes 68 ms to orbit to antipode, so this is like visualising a wave advancing at light speed slowed down by a factor of about 100.

A globe slowly spins from Edinburgh Scotland, eastward towards just off the coast of New Zealand. A bright neon ring expands outward then inward, marking places at the same distance from Edinburgh.

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