Finally a little relief, it was so confining before. https://www.sciencemag.org/news/2019/02/you-know-kilo-mega-and-giga-metric-system-ready-ronna-and-quecca
To put these numbers into some kind of perspective, the diameter of a quark is approximately 4.3 x 10^-15 millimeters. However, a "preon" is far smaller and a sub-component of quarks and leptons. I say sub-component because the term "particle" is not really applicable anymore. Doug -- Douglas E Powell [email protected] http://www.linkedin.com/in/dougp01 - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>

