Geology & Earth Science
Paleomagnetic Seafloor Stripes
M(x) = sign(sin 3|x|) reversal record
New crust minted at a mid-ocean ridge freezes in the Earth's magnetic polarity of the moment, so as the seafloor spreads it lays down a symmetric barcode of normal and reversed stripes — the smoking gun that proved plate tectonics.
Computed & rendered in pure C# on the frozen OnlyCSharp 1.8 library — animation baked to GIF with the library's own
Gif encoder (no GPU, no ffmpeg, no external packages).