-----BEGIN PGP SIGNED MESSAGE----- > Technically, grams are units of mass. Which is important, since a gram of > gold is always a gram of gold, even on the moon. However, you would have > less gold if the gram was a unit of weight.
hi tristan, since it's been about 1 year since i posted this and it seems to come up off and on, here is some info on the weight vs. mass topic. jay w. [EMAIL PROTECTED] repost (since i can't seem to link to the archived article via URL): Date: Fri, 22 Dec 2000 08:41:17 -0500 Author: "Jay W." <[EMAIL PROTECTED]> Subject: mass vs. weight Body: ah, the old mass vs. weight topic :) see: http://ourworld.compuserve.com/homepages/Gene_Nygaard/weight.htm for a good discussion on the topic which i think i've pointed to a while back on this forum. the reason i bring this up - we can all easily agree that grams and kilograms are units of mass - but is a "pound" or "ounce" as mentioned below, or used in the AUG world a weight or a mass? imho, they are units of mass. 1. the internationally recognized standard mass unit is a 1 kilogram platinum/iridium cylinder stored in france, with a duplicate in the US. source: http://physics.nist.gov/cuu/Units/kilogram.html a nice picture of the kilo at: http://physics.nist.gov/cuu/Units/kilogram2.html a kilogram is the one base unit that is still referenced to a physical artifact and not a fundamental constant. projects are underway to remedy this: http://www.npl.co.uk/npl/md/avogadro.html 2. when we used the words weight/weigh in our everyday life, we mean in the sense of mass *not* force. see section 8.3 of the NIST Guide to SI Units: http://physics.nist.gov/Pubs/SP811/sec08.html quote: "In commercial and everyday use, and especially in common parlance, weight is usually used as a synonym for mass. Thus the SI unit of the quantity weight used in this sense is the kilogram (kg) and the verb "to weigh" means "to determine the mass of" or "to have a mass of." 3. troy ounces and pounds are tied *exactly* to the kilogram standard. starting from "1 grain = 64.79891 milligrams (exactly)" from http://physics.nist.gov/Pubs/SP811/appenB9.html we can work our way to a troy ounce (which equals 480 grains) and a troy pound (which equals 12 troy ounces). therefore the "ounces" we use in the AUG world are units of mass. jay w. p.s. thats an interesting unit i just saw: 1 microgram is equal to 1 "gamma" somebody better grab up the domain name: www.gammagold.com its available! -----BEGIN PGP SIGNATURE----- Version: PGP 7.0.4 iQEVAwUBPCI69syM0YPqVE7FAQFP4wf+KYR8CP0rclB4kQsoMO1eR1IO/hRwUa8C K+sU6MYN09YhavdPMhp1Z9AAo8mc2Bs/claVVQ05B4fdNVKHj0atugdvrLOmkSeZ 8XeFdrud/9LVIcYuHQpW/g8gDk4bTeKgm3jIHJ7X9FaOFuAfS/Ejr5wNsEiiZO9O RyeQ4NIF+vgziM711QXDqIoa62HulnYmOs2T6PHX4aUAjAXu+y4xvb1W9+2QSlhS OKZXuBHZ9FRmEa7vxkrvoAxw1kjYVG3AlGjnk7+h8fh9Wis8RmPbrJq0jdHhpVi4 TvfWAvBJcB5oilViLItBz++/XVPCLjRseRYFTfHILBfZnPA6kUsd2Q== =YDTV -----END PGP SIGNATURE----- --- You are currently subscribed to e-gold-list as: archive@jab.org To unsubscribe send a blank email to [EMAIL PROTECTED] http://www.e-gold.com/stats.html lets you observe the e-gold system's activity now!
