[HN Gopher] Spirograph
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       Spirograph
        
       Author : peter_d_sherman
       Score  : 17 points
       Date   : 2021-03-07 17:57 UTC (5 hours ago)
        
 (HTM) web link (en.wikipedia.org)
 (TXT) w3m dump (en.wikipedia.org)
        
       | joeblau wrote:
       | This was one of my favorite toys as a kid.
        
       | spiraling_shape wrote:
       | The coolest digital spirograph images I've seen are from here:
       | 
       | https://spiromaniac.tumblr.com/
        
       | smoldesu wrote:
       | I had one of these when I was younger, it was a lot of fun. Then
       | someone got the bright idea to stick play-doh in the gears, and
       | the fun diminished significantly.
        
       | dang wrote:
       | If curious, past threads:
       | 
       |  _Drawing Spirograph curves in Python_ -
       | https://news.ycombinator.com/item?id=17883187 - Aug 2018 (10
       | comments)
       | 
       |  _Spirograph Simulator (2014)_ -
       | https://news.ycombinator.com/item?id=13256222 - Dec 2016 (40
       | comments)
       | 
       |  _Spirograph drawing_ -
       | https://news.ycombinator.com/item?id=11026525 - Feb 2016 (1
       | comment)
       | 
       |  _Spirograph: Circles on circles rotating in opposite directions_
       | - https://news.ycombinator.com/item?id=6959404 - Dec 2013 (1
       | comment)
       | 
       |  _Spirograph in HTML 5_ -
       | https://news.ycombinator.com/item?id=5505467 - April 2013 (20
       | comments)
       | 
       |  _The mathematics of spirograph art_ -
       | https://news.ycombinator.com/item?id=3777536 - March 2012 (2
       | comments)
        
       | peter_d_sherman wrote:
       | Here are some interesting-looking Spirograph videos:
       | 
       | Spirograph Designs Compilation:
       | 
       | https://www.youtube.com/watch?v=39vZEvUBeSs
       | 
       | Wild Gears: Triangle Gear 120 in Ring 210 with Birdsong
       | 
       | https://www.youtube.com/watch?v=eC9dGWEc10Q
       | 
       | PDS: Speculation:
       | 
       | There is a relationship between the Spirograph toy -- and Fourier
       | Series:
       | 
       | "But what is a Fourier series? From heat flow to circle drawings
       | (3Blue1Brown)":
       | 
       | https://www.youtube.com/watch?v=r6sGWTCMz2k
       | 
       | PDS: Also, if I were to go for "full crackpot" (which I will,
       | because I usually do! <g>) -- I'd speculate that fields, such as
       | atomic, and subatomic fields (all particles -- because particles
       | are basically all fields which act as particles) are _"
       | Spirographic"/Fourier Series in nature_...
       | 
       | Yeah, I know...
       | 
       | "You're a crackpot!"
       | 
       | <g>
       | 
       | (Oh, an even more crackpot conjecture... I'd bet you could derive
       | all of the quantum particles... from Spirographic designs/Fourier
       | Series...)
        
       | impendia wrote:
       | As a math teacher, I love these things.
       | 
       | In a calculus class, I once gave a demonstration and then derived
       | the parametric equations on the board.
       | 
       | In an introductory number theory class, I tasked my students with
       | figuring out how to predict how many points a figure would have
       | before drawing it.
        
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       (page generated 2021-03-07 23:01 UTC)