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patmorgan23yesterday at 7:49 PM2 repliesview on HN

You forgot WITH LASERS, and IN A VACUUM


Replies

m4rtinkyesterday at 11:54 PM

IIRC from the Veritasium video[0] there is actually some hydrogen gas flowing at quite a high speed though the laser chamber to carry away the tin debris so that it does not accumulate on the mirrors.

[0] https://www.youtube.com/watch?v=MiUHjLxm3V0

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leoctoday at 12:14 AM

The old SemiAccurate article https://semiaccurate.com/2013/02/13/euv-moves-forward-two-st... was very funny.