- cross-posted to:
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- cross-posted to:
- [email protected]
- [email protected]
The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea.
The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea.
Until we stick it in an led!
I guess past the uv range we should just call them ED, but then you only think about erectile dysfunction.