Ah, yes. The true story of how an amateur mathematician tried to redefine the number pi to 3.2 and copyright it – and the case went to Senate.
That would’ve rendered this pi love letter rather different…
How to organize, add and multiply matrices – an animated guide.
Video highlights from the grand opening of NYC’s new Museum of Mathematics.
Geometrical Psychology – Benjamin Betts’s curious 19th-century mathematical illustrations of consciousness.
Geometria (1543) – gorgeous 16th-century geometrical sketches by German artist, mathematician, and cartographer Augustin Hirschvogel (1503–1553)
Fascinating short TED animation on how math guides ships at sea.
Metamorphose – fascinating 1999 documentary about M.C. Escher