Re: Suspension losses

On Mon, 13 Jan 2025 11:28:12 -0800, Jeff Liebermann <jeffl@cruzio.com>
wrote:

On Mon, 13 Jan 2025 08:57:18 -0500, zen cycle
<funkmasterxx@hotmail.com> wrote:
>

On 1/13/2025 2:01 AM, Jeff Liebermann wrote:

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.

>
Nothing is 100% efficient

>
Well, the heater wires might radiate some EM radiation, which then is
absorbed by nearby objects and is converted to IR which adds to the
heat produced by the heater wires.  There might be some radiation at
other frequencies (RFI, EMI, microwaves, visible light, UV, etc) but
most of the radiation is ends up somewhere in the IR bands.
>
Incidentally, I'm usually amused at the advertising for electric
heaters all claiming that their more "efficient" than the competition.
Of course, no numbers and certainly no calculations are ever provided.

They could always do a study where they ask people which heater made
them feel warmer.

--
C'est bon
Soloman