I don't know the answer to your questions, but I recently read this and thought you may find it interesting, given your first question, as at some point Kurt Pe

I don't know the answer to your questions, but I recently read this and thought you may find it interesting, given your first question, as at some point Kurt Petersen developed devices that scan US mail for anthrax: https://spectrum.ieee.org/geek-life/profiles/kurt-petersen-2019-ieee-medal-of-honor-recipient-is-mr-mems https://spectrum.ieee.org/geek-life/profiles/kurt-petersen-2...