> On Thu, 11 Jan 2024 12:11:01 -0800 (PST), whit3rd <whit3rd@gmail.com> wrote:
>> On Monday, January 8, 2024 at 7:04:07?PM UTC-8, John Larkin wrote:
>>> On Tue, 9 Jan 2024 01:46:47 -0000 (UTC), Dan Purgert <d...@djph.net> wrote:
>>>> On 2024-01-08, john larkin wrote:
>>> Use quantum computing. Set up a goodness mask and apply it to all of
>>> them simultaneously.
>>
>> Quantum isn't a magic word meaning what you need. Content-addressable
>> memory comes closer (and human memory is content-addressable).
>
> I think the human brain is a quantum computer that can evaluate the
> immense solution space in parallel, preferably when asleep.
John Larkin knows even less about quantum computing than he knows about
the human brain. His speculations on the subject are random noise.
> One trick is to not pre-censor the space. Keep, literally, an open
> mind.
And how would somebody do that? You approach seems to be to learn as
little as possible about about the components you are using - see where
they blow up rather than reading the data sheet.
>> As Edison once said, 'To be an inventor, you need a good imagination and
>> a lot of junk'.
It a lot easier if you have access to lots of different well
characterised components, rather than junk. Knowing what you are playing
with may inhibit your creativity, but it does let see a lot furhter into
where you might go.
> He said a lot of cool stuff.
>
> I recently read that when he developed the light bulb and city
> lighting systems, he didn't understand Ohm's Law.
And it took Telsa's better educated insights to set up the AC
distribution systems we have today. Admittedly, we've gone back to 500KV
DC for really long links, but Edison would never have got there on his own.
>> In essence, every table of integrals IS a lot of junk. So is a liberal education.
>> And, so is a circuit cookbook-style collection.
I never found circuit cook books all that useful.
> Circuit cookbooks used to be popular. I have a couple. They are
> interesting to browse.
>
> Jim Willams' two books of essays are great. Some touch on the mental
> design issues.
They can be interesting, but they aren't all that great. He wrote six
application notes on the Baxandall Class D oscillator, but never
realised the Peter Baxandall had invented it, or suggested using MOSFET
switches. Not a lot of creativity there.
> AoE is fabulous, worth reading cover to cover, plus the X-chapters.
It's useful, but very much aimed at physics students, and scientists in
general. The treatment of transformers is pretty superficial, but you
wouldn't have noticed that.
--
Bill Sloman, Sydney
Reply by Bill Sloman●January 12, 20242024-01-12
On 12/01/2024 8:37 am, Tabby wrote:
> On Tuesday 9 January 2024 at 03:28:51 UTC, Anthony William Sloman wrote:
>> On Tuesday, January 9, 2024 at 2:04:07 PM UTC+11, John Larkin wrote:
>>> On Tue, 9 Jan 2024 01:46:47 -0000 (UTC), Dan Purgert <d...@djph.net>
>>> wrote:
>>>> On 2024-01-08, john larkin wrote:
>>>>> [...]
>>>>> When do you get your best electronic design ideas?
>>>>
>>>> When I've had a chance to relax (note - they're still *bad* by good long
>>>> way ;) )
>>> My mental model is that, given some modest kit of components, there is
>>> a multidimensional "solution space" of possible circuits that could be
>>> made from them. With, say, 200 parts the number of possible circuits
>>> exceeds the number of electrons in the universe. All the digikey parts
>>> make more. So how does one search that space in, say, a few hours or
>>> days?
>>>
>>> Use quantum computing. Set up a goodness mask and apply it to all of
>>> them simultaneously.
>> Of course, setting up a "goodness" mask involves working out what you want the circuit to do, and one vital part of invention involves seeing that there is a problem that could be solved. Once you've defined the problem, the solution can be trivial.
>>
>> Politicians define lots of problems, most of which don't actually exist, and then tout their "solutions". Hitler thought that German needed more living space. Donald Trump seems to have though that the US needed fewer immigrants.
>
> I thought his lebensraum was just an excuse to kill people & steal their stuff.
That makes it a typical example of the "problems" that politicians
define and propose to solve. Killing people was a incidental side effect
- stealing their stuff - mainly their land - was the solution he was
selling.
--
Bill Sloman, Sydney
Reply by darius●January 11, 20242024-01-11
The arsehole Don Y <blockedofcourse@foo.invalid> persisting in being an Off-topic troll...
--
Don Y <blockedofcourse@foo.invalid> wrote:
The idiot john larkin <jl@650pot.com> persisting in being an Off-topic troll...
--
john larkin <jl@650pot.com> wrote:
> Path: not-for-mail
> NNTP-Posting-Date: Thu, 11 Jan 2024 22:47:27 +0000
> From: john larkin <jl@650pot.com>
> Newsgroups: sci.electronics.design
> Subject: Re: mental imaging
> Date: Thu, 11 Jan 2024 14:47:26 -0800
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Reply by Don Y●January 11, 20242024-01-11
On 1/11/2024 1:11 PM, whit3rd wrote:
> As Edison once said, 'To be an inventor, you need a good imagination and
> a lot of junk'.
>
> In essence, every table of integrals IS a lot of junk. So is a liberal education.
> And, so is a circuit cookbook-style collection.
The point of a (good) formal education is to expose you to
as much of that "junk" as possible. You aren't (typically)
required to know/retain all of the detail; rather, just
for some association to trigger a "vague recollection"
of some POTENTIAL solution (which may need modification)
to the problem at hand.
The Rub comes when none of the "standard forms" fits your
application and you have to decide which of them to
leverage to fit -- or, whether another "novel" approach
may be better.
Searching a dictionary is a lot different than searching an
address book -- even though (superficially) they appear
to be the same problem! (think about it)
Reply by john larkin●January 11, 20242024-01-11
On Thu, 11 Jan 2024 12:11:01 -0800 (PST), whit3rd <whit3rd@gmail.com>
wrote:
>On Monday, January 8, 2024 at 7:04:07?PM UTC-8, John Larkin wrote:
>> On Tue, 9 Jan 2024 01:46:47 -0000 (UTC), Dan Purgert <d...@djph.net>
>> wrote:
>> >On 2024-01-08, john larkin wrote:
>> >> [...]
>> >> When do you get your best electronic design ideas?
>> >
>> >When I've had a chance to relax (note - they're still *bad* by good long
>> >way ;) )
>> My mental model is that, given some modest kit of components, there is
>> a multidimensional "solution space" of possible circuits...
>
>In a sense, filter cookbooks are a fit to that kind of perception. There
>are tables of integrals that attempt to solve a range of problems by
>just covering many forms, and yes, those are useful approaches
>
>> that could be
>> made from them. With, say, 200 parts the number of possible circuits
>> exceeds the number of electrons in the universe. All the digikey parts
>> make more. So how does one search that space in, say, a few hours or
>> days?
>
>By knowing as much as possible about similar uses, one can
>>
>> Use quantum computing. Set up a goodness mask and apply it to all of
>> them simultaneously.
>
>Quantum isn't a magic word meaning what you need. Content-addressable
>memory comes closer (and human memory is content-addressable).
I think the human brain is a quantum computer that can evaluate the
immense solution space in parallel, preferably when asleep.
One trick is to not pre-censor the space. Keep, literally, an open
mind.
>
>As Edison once said, 'To be an inventor, you need a good imagination and
>a lot of junk'.
He said a lot of cool stuff.
I recently read that when he developed the light bulb and city
lighting systems, he didn't understand Ohm's Law.
>
>In essence, every table of integrals IS a lot of junk. So is a liberal education.
>And, so is a circuit cookbook-style collection.
Circuit cookbooks used to be popular. I have a couple. They are
interesting to browse.
Jim Willams' two books of essays are great. Some touch on the mental
design issues.
AoE is fabulous, worth reading cover to cover, plus the X-chapters.
Reply by a a●January 11, 20242024-01-11
The arsehole bitrex <user@example.net> persisting in being an Off-topic troll...
--
bitrex <user@example.net> wrote: