[HN Gopher] Fluid Simulation Pendant
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       Fluid Simulation Pendant
        
       Author : sschueller
       Score  : 137 points
       Date   : 2025-01-13 13:50 UTC (9 hours ago)
        
 (HTM) web link (mitxela.com)
 (TXT) w3m dump (mitxela.com)
        
       | asplake wrote:
       | Charlieplexing:https://en.m.wikipedia.org/wiki/Charlieplexing
        
       | Archit3ch wrote:
       | Does it send MIDI?
        
       | byearthithatius wrote:
       | Or we could just fill the same container with....water
        
         | CamperBob2 wrote:
         | I'd be tempted to fill it with water with something dissolved
         | in it to make it more conductive (and probably more viscous),
         | _and_ include LEDs whose brightness and /or color reflects the
         | conductivity at their location. The rationale being, why should
         | I do all that math when Nature will do it for me?
        
           | lopis wrote:
           | Isn't that precisely his first idea? A device containing a
           | conductive liquid (mercury) that takes care of closing the
           | circuits and the turning on the LEDs.
        
         | burnte wrote:
         | Water is a lot less luminescent than LEDs. I think the effect
         | might be reduced if changed to a water based display.
        
           | addled wrote:
           | What about a fluorescent dye with one (or few) UV LEDs on the
           | edge facing inward to illuminate it?
           | 
           | Maybe not "better" than OP's design, but could be interesting
           | in its own way.
        
       | LolWolf wrote:
       | wait, this is amazing !
       | 
       | I am tempted to make a slightly sillier version of this w/ a
       | circular lcd rather than the uhh retro-cool smt leds honestly
       | just to avoid the multiplexing design
       | 
       | great work!! super cool
        
       | mncharity wrote:
       | > access to a lathe is a fundamental human right
       | 
       | A teacher once told me their (middle? high?) school was the last
       | in their state with lathes. Something which couldn't be created
       | there today, and couldn't exist now in some other states, but
       | which had been repeatedly grandfathered, since its creation with
       | many others, just after World War 2. And that it would disappear
       | upon the first serious accident, leaving none at all.
        
       | ayoubd wrote:
       | I really love mitxela's project ideas and process videos, I
       | recommend checking out his other projects as well
        
       | CamperBob2 wrote:
       | The HN guidelines say not to complain about the formatting or
       | presentation of the article, but often the page design is so
       | insanely terrible that someone can't help but post a complaint
       | about how they couldn't read it because X, or how it didn't work
       | on browser Y, or how the information density was so annoyingly
       | low it wore out their mouse or pointing finger, or...
       | 
       | This isn't one of those posts. Good job to the author. This
       | article is not only nicely written but also a pleasure to read.
        
       | Swoerd wrote:
       | I would love to see a version with wireless charging, though that
       | might be tough with the all metal enclosure, perhaps it could be
       | done through the front/screen section.
       | 
       | Also, adopting the screen off function Apple watches use could be
       | a cool addition, for that it would need a light sensor. On an
       | Apple Watch, you can switch the screen off by simply covering the
       | screen with your hand.
        
       | polishdude20 wrote:
       | This is super cool! I love the simulation aspect of it.
       | 
       | On the same note, I've been working on a bike POV display with
       | lots of LEDs and just got "live-ish" video working over wifi with
       | it:
       | 
       | https://youtu.be/hxAHBvuyqpY?si=8XraFuG_Fi54Bs7T
        
         | mattmar96 wrote:
         | Ooo nice! Looks sweet
        
       | leephillips wrote:
       | So, so beautiful. I was shocked at the price. I was expecting
       | something about 10x what he's charging.
        
         | pimlottc wrote:
         | Seems like it's sold out now except for a special one at
         | PS1,000. Did anyone catch what the original price was?
        
       | ge96 wrote:
       | dang, great video and nice write up
       | 
       | I can see a good video as far as show/don't tell my stuff is
       | dry/way too much info. Guess it depends verbatim tutorial vs.
       | just showcasing.
        
       | elcritch wrote:
       | Fascinating that with such a simple simulation you can see grain
       | boundaries like those in metals forming. Look at the second
       | image, those are almost identical to what they looked like in our
       | material science courses.
        
       | m3kw9 wrote:
       | put diamonds on top of those LEDs and you can sell it to rappers.
        
       | fitsumbelay wrote:
       | the whole mitxela store is t-i-g-h-t the metal shop close-ups are
       | zomg :salivating-face: ...
        
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       (page generated 2025-01-13 23:00 UTC)