zabouti |||

Fourier visualised | Hacker News

Source

| |

JadeNB 28 days ago

I’m only seeing an image, with no explanation, and it took me a while to realise what it was showing; so, in case anyone else is puzzled by it, each image is the sum of the previous one with a new factor (indicated by the wheels upon wheels”).

I think that the reconstruction of Homer Simpson’s face (which I think I originally saw thanks to OP ColinWright!) may be a more convincing demonstration of the power of Fourier transforms:  . There’s a Nautilus article about it, too: http://nautil.us/blog/the-math-trick-behind-mp3s-jpegs-and-h… (EDIT: and an HN post discussing that: https://news.ycombinator.com/item?id=6683866 ).

-—-

|

Up next Vimwiki a great personal knowledgebase Source Last edited Tue Aug 7 21:04:03 2012 Structure your plain text notes with vim Vimwike is awsome! Do you use vim? Then you will love Nearly Every USGS Topo Map Ever Made (2014) Source —– | | |Went hunting for topo maps again recently, and found an interface called TopoView which is so much better than the USGS store and
Latest posts I perceive new things as my nerves slow down B&N’s new president Learning French with the FSI Method Release time Xtian education in public school The Bastard! He doesn’t exist! I used to have so much fun cutting pictures and words out of magazines and newspapers Photoshop brushes drive me crazy! I warn people about confusing Dropbox behavior 2022-01-12 Tunisia’s spicy Harissa gets UNESCO heritage status Today is Thanksgiving 2022, aka Turkey Day. Proposed Driving Itinerary of the Cathar Region How you know when your volleyball-playing days are over Saeed Jones Why history moves in cycles Shopping lists Frédéric Bruly Bouabré « L’alphabet de l’ouest africain » American Anti-Government sentiment Proof that the Earth’s Climate is Not Changing Our Poor Kitchen The NY Times has a Telegram channel Amazon loses my smile History versus the UNC Press fire of 1990 J’ai pensé à ce passage du livre « La septième fonction du langage » de Laurent Binet Sufism in Tunisia Remembering Mark Grandy 2022-02-01 OLLI Bottleneck Comparing Gafsa and Chapel Hill Se oriente, rapaz Feeling nostalgic because of a COVID test Fun misunderstandings Our Living Contradiction