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krastanov
on July 23, 2022
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Cold-brewing of coffee by picosecond-pulsed laser ...
The warning is *NOT* exaggerated. It is incredibly easy to damage your eyes with these tools.
sgc
on July 23, 2022
[–]
I bought a cheap cat toy laser on amazon that was so powerful our eyes hurt just from testing the thing on our light gray walls etc. Some things are not worth messing around with.
Consider applying for YC's Spring batch! Applications are open till Feb 11.
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