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patmorgan23 | 6 days ago

You forgot WITH LASERS, and IN A VACUUM

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m4rtink|6 days ago

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

greggsy|6 days ago

They account to every single tiny atom somehow too, but I think I fell asleep last time I watched the video.