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Well, the counterargument is that in theory, you can imagine a way to create structural color regardless of substrate. So imagine a technology that shines a las
by jychang 11mo ago
Well, the counterargument is that in theory, you can imagine a way to create structural color regardless of substrate. So imagine a technology that shines a laser on a car or a block of concrete and makes it blue; I'd argue that's correctly "without chemicals".
Of course, I doubt you can do that to any random substrate, since the color will depend on the properties of the material.
- shultays 11mo agoSo imagine a technology that shines a laser on a car or a block of concrete and makes it blue There is something like that for sheets of steel at least https://www.youtube.com/watch?v=2ncEfAxkuFA https://www.youtube.com/watch?v=2ncEfAxkuFA And here is a video explains it https://www.youtube.com/watch?v=RsGHr7dXLuI https://www.youtube.com/watch?v=RsGHr7dXLuI