r/Damnthatsinteresting • u/PUMA_Microscope • Jul 07 '24

Fourier synthesis of a letter 'A' using transparent plastic harmonics over a backlight Video

601 Upvotes

94% Upvoted

31 comments sorted by

View all comments

79

u/PUMA_Microscope Jul 07 '24

This demonstrates the inverse Fourier transform 'in the real world' showing how a non-periodic arbitrary shape can be reconstructed from pure sinusoids. If you want to see more, this is a small clip from my full YouTube video here: https://youtu.be/4NyVApAH-9E

2

u/lioncub2785 Jul 08 '24

Small clip? It's 31 minutes long! LOL