3 ms·

What is used, and how long does doing that take?

• AlexCoventry 6y ago
  I think it was sarcasm.
  • duck2 6y ago
    Still interesting what would be used to polish a gold plated beryllium mirror. For instance, looks like they clean it by spraying CO2 snow: https://en.wikipedia.org/wiki/Carbon_dioxide_cleaning https://en.wikipedia.org/wiki/Carbon_dioxide_cleaning
    • ddingus 6y ago
      Yeah, I took a gamble. Just looked at the reference you dropped. Thanks, that is an interesting little rabbit hole.
    • petschge 6y ago
      Be very careful grinding, polishing or otherwise ablating any alloy that contains beryllium. Berylliosis (no matter if acute or cronic) is no joke.
• marcusverus 6y ago
  Given a budget of, say, $9.66 Billion, I'd say it would take around 25 years. https://en.wikipedia.org/wiki/James_Webb_Space_Telescope https://en.wikipedia.org/wiki/James_Webb_Space_Telescope