Re: Ancient refrigerators

From	Jon Elson <elson@pico-systems.com>
Organization	Pico Systems
Date	2021-02-18 20:44 -0600
Subject	Re: Ancient refrigerators
Newsgroups	sci.electronics.misc
References	<0dc0958a-d9b8-4242-bc5b-9ceaac41271an@googlegroups.com>
Message-ID	<DYmdnf3G_bucu7L9nZ2dnUU7-bPNnZ2d@giganews.com> (permalink)

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Rich D wrote:

> How did they make ice, in the days before electricity?
> 
In the early days, they cut it out of frozen lakes and rivers and stored it 
in ice houses insulated with thick layers of hay.

> And did they figure it out empirically, prior to the
> development of thermodynamic theory?
Mechanical refrigeration was developed about 1850, but took a while to 
become widely commercially available.  I think the physics was pretty well 
understood by that time.

Jon

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Ancient refrigerators Rich D <rdelaney2001@gmail.com> - 2021-01-07 20:43 -0800
  Re: Ancient refrigerators RosemontCrest <rosemontcrestwinery@post.com> - 2021-01-08 04:10 -0800
    Re: Ancient refrigerators Rich D <rdelaney2001@gmail.com> - 2021-01-10 15:00 -0800
      Re: Ancient refrigerators RosemontCrest <rosemontcrestwinery@post.com> - 2021-01-18 15:25 -0800
  Re: Ancient refrigerators Jon Elson <elson@pico-systems.com> - 2021-02-18 20:44 -0600
    Re: Ancient refrigerators Jim Jackson <jj@franjam.org.uk> - 2021-02-19 17:57 +0000

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