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From: Cursitor Doom <cd999666@notformail.com>
Newsgroups: sci.electronics.design
Subject: Re: how the laser happened
Date: Sun, 23 Jun 2024 16:39:56 -0000 (UTC)
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On Sun, 23 Jun 2024 05:03:34 GMT, Jan Panteltje wrote:

> On a sunny day (Sat, 22 Jun 2024 17:23:40 -0000 (UTC)) it happened
> Cursitor Doom <cd999666@notformail.com> wrote in
> <v571as$3rs0j$2@dont-email.me>:
> 
>>On Sat, 22 Jun 2024 06:19:49 GMT, Jan Panteltje wrote:
>>
>>> On a sunny day (Fri, 21 Jun 2024 11:32:56 -0700) it happened john
>>> larkin <jl@650pot.com> wrote in
>>> <1ghb7jt3882078r19n6jjgtirv25q27805@4ax.com>:
>>> 
>>>>On Fri, 21 Jun 2024 17:56:36 +0100, Cursitor Doom <cd@notformail.com>
>>>>wrote:
>>>>
>>>>>On Fri, 21 Jun 2024 06:05:21 -0700, john larkin <jl@650pot.com>
>>>>>wrote:
>>>>>
>>>>>>There was a thread somewhere above about photon wave/particle
>>>>>>duality.
>>>>>>
>>>>>>
>>>>>>This is worth reading:
>>>>>>
>>>>>>https://www.amazon.com/How-Laser-Happened-Adventures-Scientist/dp/
>>0195153766
>>>>>>
>>>>>>Einstein, in one of his fits of genius, predicted in around 1916
>>>>>>that under the right conditions, a photon could pass by an excited
>>>>>>atom and the atom would kick in another photon, or add to the wave
>>>>>>amplitude, depending on how you feel about these things. He called
>>>>>>it stimulated emission. He also declared that the laws of
>>>>>>thermodynamics made this effect impossible to use in practical
>>>>>>situations.
>>>>>>
>>>>>>In 1951, Charles Townes invented a work-around trick and built the
>>>>>>maser, a gaseous microwave oscillator. His superiors thought he was
>>>>>>crazy to dispute Einstein and almost threw him out of grad school,
>>>>>>but it worked.
>>>>>>
>>>>>>In 1960, Theodore Maiman at HRL made the first ruby laser, and Bell
>>>>>>Labs soonafter made a HeNe.
>>>>>>
>>>>>>What's interesting is that any decent neon sign shop could have
>>>>>>built a HeNe laser in 1920.
>>>>>>
>>>>>>HRL sounds like a very cool place, up in the hills above Malibu.
>>>>>
>>>>>Wasn't that where Jane Mansfield used to go out bathing?
>>>>>
>>>>>
>>>>Keep your mind on electronics, young man.
>>>>
>>>>The Getty Museum is in Malibu. Go there if you can. Hearst Castle,
>>>>too,
>>>>up the road a bit.
>>> 
>>> I've been to Malibu, even did some work there...
>>> Did not go to any museum, but did go to the beach.
>>
>>Did you see Jane? What about lobsters? Any lobsters around? 
> 
> Na, but some other beatiful women I met.
> Last time we went looking for edible seaweed ...

Argh! Never mind. I believe Jane had terrible problems with lobsters when 
she went out bathing in Malibu. But you don't know anything about that, 
clearly. It obviously wasn't publicised in Holland.