this post was submitted on 01 Apr 2024
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[โ€“] [email protected] 0 points 1 year ago (1 children)

This is called an LER. Light Emitting Resistor.

[โ€“] [email protected] 1 points 2 months ago

Heat a material and it will emit light in wavelength corresponding to the heat https://en.wikipedia.org/wiki/Black_body.