Show HN: Belshazzar's Clock, luminous paint night clock(blog.karliner.net) |
Show HN: Belshazzar's Clock, luminous paint night clock(blog.karliner.net) |
I imagine that you could improve the consistency and readability some by modeling the state of each pixel of paper. That way when the drum comes around you can compensate the exposure per pixel based on the current state to achieve better uniformity of display. In this way you could do exposure compensation on each row of output to make the display equally bright top to bottom. This would be similar to how a "no-refresh" epaper display works.
Maybe the same thing could be done with beads and something similar to the marble machines to replenish a screen of beads, then dump it when the time is invalid.
Memories unlocked of extracting the flash unit from disposable cameras to flash on demand.
I've had Aqua and Green, and they look gorgeous.
Right now I'm try to find a longer persistence photochromic for the daylight version.
He makes a lot of interesting paints and pigments, and is UK based.
https://culturehustle.com/collections/powder
I've bought a couple of versions of his blackest black paint, and one of his whitest white, and they've all be extraordinarily good.
I have some of his "LIT - THE WORLD'S GLOWIEST GLOW PIGMENT", but I haven't used it yet. I have no doubt it'll be great as well.
(I have a vague plan to paint a motorcycle in Black4.0 to see if it's unreflective enough to evade the IR laser speed detectors cops use here...)
Once you've had this on the ceiling for a while, it's annoying to have to look for time on a nightstand or your wrist.
say, why don't you move mirrors but the whole laser?
I've wondered whether it would be possible to design a motorcycle with a surface that's non-reflective to radar because of it's shape or texture, like how stealth planes work.
EDIT: I realized the super black paint is probably the worst thing you could do for your own safety on a motorcycle, but that's besides the point...
“I had to ride slow because I was taking my guerrilla route, the one I follow when I assume that everyone in a car is out to get me. My nighttime attitude is, anyone can run you down and get away with it. Why give some drunk the chance to plaster me against a car? That's why I don't even own a bike light, or one of those godawful reflective suits. Because if you've put yourself in a position where someone has to see you in order for you to be safe--to see you, and to give a fuck--you've already blown it... We had a nice ride through the darkness. On those bikes we were weak and vulnerable, but invisible, elusive, aware of everything within a two-block radius.” ― Neal Stephenson, Zodiac
I didn't compare with the other paints (I only found that video after ordering the paint...) or with the difficulty of painting (I got the intern to do it!) but in terms of the final result, that's exactly the same result I got.
I also have some of their glow pigment and it's a lot more impressive. This particular color doesn't glow very brightly or for terribly long, but the hue... glow pigment isn't supposed to be this color!