Path: csiph.com!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Don Kuenz Newsgroups: sci.electronics.design Subject: Re: why analog electronics Date: Sun, 12 Mar 2017 02:30:50 -0000 (UTC) Organization: A noiseless patient Spider Lines: 40 Distribution: world Message-ID: <20170311a@crcomp.net> References: Injection-Date: Sun, 12 Mar 2017 02:30:50 -0000 (UTC) Injection-Info: mx02.eternal-september.org; posting-host="345cc4ff82bcd9a1f7671e66bc64559a"; logging-data="23397"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+OZ3qqRTmysLd2wNW35bDe" Cancel-Lock: sha1:Zrcu+VqD9kqam+1bfFM/PzHDlGg= Xref: csiph.com sci.electronics.design:451429 John Larkin wrote: > On 10 Mar 2017 04:49:45 -0800, Winfield Hill > wrote: > >>Sylvia Else wrote... >>> >>>On 10/03/2017 8:42 AM, doh@yipee.com wrote: >>>> On Wed, 08 Mar 2017 17:11:04 -0800, John Larkin >>>> wrote: >>>> >>>>> >>>>> The Brat is in the UC Berkeley MBA program, and one of her profs took >>>>> his entire class to dinner at Chez Panisse, which ran about $200 per. >>>>> He was asking about our company, and was surprised that anyone still >>>>> does analog electronics. "Isn't everything digital now?" He's not >>>>> being a jerk, he's seriously wondering why anything is analog. >>>>> >>>>> So, I'm going to write him a little essay on "why analog?" Who knows, >>>>> maybe he'll take me to Chez Panisse. >>>> >>>> The universe is analog. Man invented digital. >>>> >>> >>> Neurons either fire or they don't - there's no analog in-between. >> >> Firing rate and other aspects carry critical >> neural 'analog' information. > > I suspect that a neuron firing is like UPS delivering a set of > encyclopedias. It's more like flatulence delivering stink. A neuron "fires" when the permeability properties of the cell change to allow sodium to diffuse through the cell membrane. Thank you, -- Don Kuenz KB7RPU