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I have been guilty of telling people one of the reasons Nasa selected the speedy was Hesalite/acrylic crystal does not smash and create glass fragments. I have seen the story repeated on a number or reputable influencer websites over the years.
‘’NASA chose it because, unlike a sapphire crystal, it would not break into tiny fragments if broken’’
I saw comments from a certain space chimp on this forum which got me thinking is this true and how could I check it with my limited time and…