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From: Rolf Mantel <news@hartig-mantel.de>
Newsgroups: rec.bicycles.tech
Subject: Re: Suspension losses
Date: Mon, 13 Jan 2025 15:42:23 +0100
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Am 13.01.2025 um 08:01 schrieb Jeff Liebermann:
> On Mon, 13 Jan 2025 13:20:04 +0700, John B. <slocombjb@gmail.com>
> wrote:
> 
>> But long before the days of transistors and "circuit boards" my folks
>> had an electric blanket... used it all the rest of their lives. Is the
>> modern one better?
> 
> Not really better, but certainly safer.  Electric heaters are all 100%
> efficient.  Every watt you shove into the heating wires is turned into
> heat.  There's no way to improve on 100% efficiency.

Wrong: There's no *simple* way to improve on 100% efficiency.  As soon 
as you change your definition of "efficiency", there might be additional 
improvements.
Examples include
<https://en.wikipedia.org/wiki/Condensing_boiler>
(you gain additional heat by emitting liquid rather then gaseous H2O)

or
<https://en.wikipedia.org/wiki/Heat_pump>
(cooling the outside brings you additional warmth inside).