<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1497758401552_3371"><font id="yui_3_16_0_ym19_1_1497758401552_3417" size="2" face="Arial"><b id="yui_3_16_0_ym19_1_1497758401552_3418"><span style="font-weight:bold;" id="yui_3_16_0_ym19_1_1497758401552_3419">Posted by</span></b> Dale Farmer via Stagecraft <stagecraft@theatrical.net></font><br id="yui_3_16_0_ym19_1_1497758401552_3434"></div><div id="yui_3_16_0_ym19_1_1497758401552_3433">>The big brains at the National Institute of Standards have figured out <br id="yui_3_16_0_ym19_1_1497758401552_3436"><div dir="ltr" id="yui_3_16_0_ym19_1_1497758401552_3437">>how to count individual electrons. So they are redefining the ampere <br id="yui_3_16_0_ym19_1_1497758401552_3438"></div><div dir="ltr" id="yui_3_16_0_ym19_1_1497758401552_3439"><div dir="ltr" id="yui_3_16_0_ym19_1_1497758401552_3441">>as a base unit based on that.</div><div dir="ltr" id="yui_3_16_0_ym19_1_1497758401552_3446"><br></div></div></div><div id="yui_3_16_0_ym19_1_1497758401552_3440">While we do live in an age where U.S. judges redefine words, to grant themselves the power to change laws, without having to bother with Constitutional methods, I don't think National Institute is doing that.</div><div id="yui_3_16_0_ym19_1_1497758401552_3370"><br></div><div id="yui_3_16_0_ym19_1_1497758401552_3117">Back when I was taking electronics, in the late 80's, I was taught that an Amp is a coulomb per second, and that a coulomb is a specific number of electrons.</div><div id="yui_3_16_0_ym19_1_1497758401552_3212"><br></div><div id="yui_3_16_0_ym19_1_1497758401552_3213" dir="ltr">I see on Wikipedia, that the SI definition is different. But it adds, "<span style="color: rgb(34, 34, 34); font-family: sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 22.3999996185303px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none; background-color: rgb(255, 255, 255);" id="yui_3_16_0_ym19_1_1497758401552_3320">In the future, the SI definition may shift back to charge as the base unit, with the coulomb defined in terms of the<span id="yui_3_16_0_ym19_1_1497758401552_3321"> </span></span><a href="https://en.wikipedia.org/wiki/Elementary_charge" title="Elementary charge" style="text-decoration: none; color: rgb(11, 0, 128); font-family: sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 22.3999996185303px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background: none rgb(255, 255, 255);" id="yui_3_16_0_ym19_1_1497758401552_3322">elementary charge</a><span style="color: rgb(34, 34, 34); font-family: sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 22.3999996185303px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none; background-color: rgb(255, 255, 255);" id="yui_3_16_0_ym19_1_1497758401552_3323"><span id="yui_3_16_0_ym19_1_1497758401552_3324"> </span>on electrons and protons (one coulomb equals the charge of roughly<span id="yui_3_16_0_ym19_1_1497758401552_3325"> </span></span><span style="white-space: nowrap; color: rgb(34, 34, 34); font-family: sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 22.3999996185303px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" id="yui_3_16_0_ym19_1_1497758401552_3326">6.242<span style="margin-left: 0.25em; margin-right: 0.15em;" id="yui_3_16_0_ym19_1_1497758401552_3327">×</span>10<sup style="line-height: 1; font-size: 11px;" id="yui_3_16_0_ym19_1_1497758401552_3328">18</sup></span><span style="color: rgb(34, 34, 34); font-family: sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 22.3999996185303px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none; background-color: rgb(255, 255, 255);" id="yui_3_16_0_ym19_1_1497758401552_3329"><span id="yui_3_16_0_ym19_1_1497758401552_3330"> </span>protons)."</span></div><div dir="ltr" id="yui_3_16_0_ym19_1_1497758401552_3345"><span style="color: rgb(34, 34, 34); font-family: sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 22.3999996185303px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none; background-color: rgb(255, 255, 255);" id="yui_3_16_0_ym19_1_1497758401552_3329"><br></span></div><div dir="ltr" id="yui_3_16_0_ym19_1_1497758401552_3347">So, this "redefinition" is really just returning to the original definition.</div><div dir="ltr" id="yui_3_16_0_ym19_1_1497758401552_3615"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1497758401552_3348">-Joe<span style="color: rgb(34, 34, 34); font-family: sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 22.3999996185303px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none; background-color: rgb(255, 255, 255);" id="yui_3_16_0_ym19_1_1497758401552_3329"><br></span></div></div></body></html>