it's windy outside

TIL you can draw a circle by numerically solving a differential system {ẋ = -y, ẏ = x}, and it's beautiful

gn

4 albums in heavy rotation & 4 people who should share theirs too Rishloo - Feathergun Discipline - To Shatter All Accord Porcupine Tree - Voyage 34 Gazpacho - Night Кот с ушами Neel Shivdasani 𝕭𝖏ø𝖗𝖓 𝕾𝖙𝖆𝖆𝖑 Andrew Strauss why not :D

ffmpeg -i /dev/video0 -filter_complex "[0:v]split[orig][copy];[copy]setpts=PTS+0.4/TB[delayed]; [orig][delayed]blend=all_expr='if(lt(mod(X*X+Y*Y\,2000)\,1000)\,A\,B)'" -f rawvideo -pix_fmt yuv420p - | ffplay -f rawvideo -video_size 640x480 -