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Victor Poughon

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Every Perceptually Uniform Color Map as a CSS Gradient div.gradient { width: 650px; height: 60px; border-radius: 3px; margin-bottom: 10px; ...
29th Apr 2025
1

Every Perceptually Uniform Color Map as a CSS Gradient

from Victor Poughon [alt+shift+b] in technology

29th Apr 2025
div.gradient { width: 650px; height: 60px; border-radius: 3px; margin-bottom: 10px; box-shadow: 5px 5px 5px rgb(0, 0, 0, 0.5); margin: 0 auto; } pre { max-width: 600px; } Colormaps are functions that map from [0, 1] to colors. I love colormaps! Maybe a...
I tried making artificial sunlight at home Some time ago, I saw this video by DIY Perks where they make artificial sunlight at home with a 500W...
27th Mar 2025
1

I tried making artificial sunlight at home

from Victor Poughon [alt+shift+b] in technology

27th Mar 2025
Some time ago, I saw this video by DIY Perks where they make artificial sunlight at home with a 500W LED and a gigantic (1.2m) parabolic reflector. I've been fascinated by this project ever since, and I wanted my own. Over the past year or so, I finally took the time to work on a...
All clocks are 30 seconds late OK, this is going to sound crazy: I believe all clocks are 30 seconds late. Let's get a few things...
6th Jan 2025
1

All clocks are 30 seconds late

from Victor Poughon [alt+shift+b] in technology

6th Jan 2025
OK, this is going to sound crazy: I believe all clocks are 30 seconds late. Let's get a few things out of the way: this is neither about time zones, nor leap seconds. It's not about synchronization of clocks, and it's not about relativity or any obscure corner of physics. I'm...
Parametric half-circle For my torchlensmaker project, I need to represent lenses surface shapes parameterically. That is, I...
20th Dec 2024
1

Parametric half-circle

from Victor Poughon [alt+shift+b] in technology

20th Dec 2024
For my torchlensmaker project, I need to represent lenses surface shapes parameterically. That is, I need equations that give the X and Y coordinates of the surface, as a function of a parameter, usually called t. The project supports different parametric shapes, but a very...
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