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From: john larkin <jl@650pot.com>
Newsgroups: sci.electronics.design
Subject: Re: CO2 Funny
Date: Sun, 26 May 2024 14:31:26 -0700
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On Sun, 26 May 2024 14:22:28 -0400, "Edward Rawde"
<invalid@invalid.invalid> wrote:

>"Bill Sloman" <bill.sloman@ieee.org> wrote in message news:v2uhs7$39s6m$1@dont-email.me...
>> On 26/05/2024 4:38 am, Edward Rawde wrote:
>>> "Bill Sloman" <bill.sloman@ieee.org> wrote in message news:v2na16$1nvei$1@dont-email.me...
>>>> On 23/05/2024 3:52 am, john larkin wrote:
>>>>> On Wed, 22 May 2024 18:10:58 +0100, Pomegranate Bastard
>>>>> <pommyB@aol.com> wrote:
>>>>>
>...
>>>>
>>>> John Larkin doesn't seem to 'design" anything. He throws together the stuff he sells like every other tinkerer.
>>>>
>>>
>>> Why does that matter to you so much?
>>>
>>> I have two books in front of me.
>>> One is "Introduction to Solid State Physics, C. Kittel"
>>> The other is "FET Circuits. Rufus P Turner"
>>>
>>> If I open the physics book at a random page I find a contour integral.
>>> I wasn't bad at math and can handle contour integrals but it is also true that I grew up in a very practical electronics 
>>> environment
>>> where getting things working was way more important than understanding every little detail of the theory of how they worked.
>>
>>I got into electronics while a I was doing a Ph.D. physical chemistry. Win Hill started a Ph.D. in chemical physics, but had better 
>>advisors.
>
>>Getting things working is always important, but understanding the detail of what's going on can be vital to getting them to work 
>>well.
>
>So both of these are needed if you want the best design.

Not really. Understanding at some level can help a lot, but it's not
necessary. Besides, we don't actually understand what we're doing, all
the way down to the quantum mechanics.