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A comment on Effect of repeated low-level red light on myopia prevention. Parent comment

Re:Effect of repeated low-level red light on myopia prevention by hollerith on Friday June 02, 2023 @04:30PM (#36170342)
No one uses electromagnetic radiation to melt steel or help make steel.
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Re:Effect of repeated low-level red light on myopia prevention by nomel on Friday June 02, 2023 @04:58PM (#36170665)
Well, that's technically false [1]. Metal laser cutting/surfacing is common. My point was (besides ionizing radiation), it's not the wavelength that matters, it's the intensity. I changed "steel" to "rocks" to help make the point clear.

[1] https://www.youtube.com/watch?v=r5vsUta5lmo

https://fairmontmachinery.com/30kw-on-1-inch-steel/

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