[Elecraft] Generic words on temperature

[Francis Belliveau]

All,
I am taking this off-list since it is so far off topic.

What I said seems to have been somewhat misinterpreted.  

1. "Threshold of pain" means it starts to hurt, not "I can't stand it any more".
2. The surface temperature of a child's forehead when running a fever of 106 degrees is less than 100 degrees.  The 106 is an internal temperature.
3. This is a "rule of thumb", not an absolute.  Run the experiment yourself:

   * Come up with a way to measure the temperature of a hot surface.   Maybe an over window could be used, but you need to measure the surface temperature.  Using a forehead thermometer will not work since it has bee calibrated to read internal temperature based on the cooler external temperature.

   * Heat the surface to 99 degrees and see how it feels.

   * Then try it again at 100 or 101 degrees.

Yes, individuals can handle much hotter temperatures.  I once saw somebody reach into a hot fish-frier and come out unburned; but he had been working in the frying industry for years and had built up the ability to to that.
This "rule of thumb" is based on a "normal average".

73,
Fran


> On Jul 3, 2021, at 19:52, David Woolley <forums at david-woolley.me.uk> wrote:
> 
> 100°F is well within the survivable body core temperature range, so it should never trigger pain receptors.
> 
> In fact, I believe it was defined based on the nominal core body temperature of a cow.
> 
> Did you mean 100°C?
> 
> -- 
> David Woolley
> 
> 
> On 04/07/2021 00:03, Francis Belliveau wrote:
>> Another rule of thumb for those who care.
>> When you hold a finger on something and it is 10 seconds to pain threshold, that location is about 100 degrees F.
>> This is not an absolute constant, but I have checked it a few times since I was told that, and it seems to be true for me.
> 
> 
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