Path: csiph.com!weretis.net!feeder6.news.weretis.net!news.glorb.com!border1.nntp.dca1.giganews.com!border2.nntp.dca1.giganews.com!nntp.giganews.com!buffer2.nntp.dca1.giganews.com!news.giganews.com.POSTED!not-for-mail NNTP-Posting-Date: Wed, 02 Nov 2016 13:14:57 -0500 From: Earle Jones27 Newsgroups: sci.physics Date: Wed, 2 Nov 2016 11:14:57 -0700 Message-ID: <201611021114574028-earlejones@comcastnet> References: <11ef52ef-e1ab-48a7-a3f9-08d70147d085@googlegroups.com> <12051f1d-1cb6-44fa-b263-c252c28b41c8@googlegroups.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit Subject: Re: The electron goes fast User-Agent: Unison/2.1.10 Lines: 19 X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-iAWLnH+wamun+AP7w+Hcq/wCQ+81VHYyjR0ZVw8GaSUdKT0JE6SRqAGK1qFLFvnIQOlW+BtVYOizfRu!mLamDAkMNOjUWhpuJ5tDGzdDTHJUYXWmpwQVY0M92nrFqp2kl417xRilpSjhyA6+O0dfxQ== X-Complaints-To: abuse@giganews.com X-DMCA-Notifications: http://www.giganews.com/info/dmca.html X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 X-Original-Bytes: 1742 Xref: csiph.com sci.physics:603494 On 2016-10-31 15:28:13 +0000, john said: > Well, the Carbon atom is 10^-9 meters. > Recent measurements of electrons' > periods is 10^-16 seconds. > They have to be going at least > PI times 10^-9, so > 3 X 10^7 meters per second, > or 10% of lightspeed. > I typed that AND figured it out > in 45 seconds. * How fast does a free electron travel in a conventional CRT with, let's say, 25,000 volts to accelerate it and 0.5 meter distance? earle *