Was browsing the new Popular Science archives, which led to an article from 1984, which had a picture of the book Creative Graphics for the BBC Microcomputer, which led me to an archived copy of the book online, which had a dirt-simple program to draw Lissajous curves, which led me to write this tweetable Ruby version. (Phew!)

ruby -rcurses -e"include Curses;i=0;loop{setpos 12*(Math.sin(i)+1),40*(Math.cos(i*0.2)+1);addstr'.';i+=0.01;refresh}" #ruby

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