Good luck with selling that to the rest of the world. And all for marginal
benefit (if in fact there is any practical benefit at all).
-----Original Message-----
From: Kaimbridge M. GoldChild
Sent: Wednesday, August 31, 2016 9:05 PM
To: US Metric Assn M
Subject: [USMA 303] Fahrenheit-Celsius Both Flawed
In terms of temperature measurement, it would seem that both the
Fahrenheit *and* Celsius scales are flawed.
In angle measurement, there is the raw radian—where 1 radian
along a circleʼs circumference equals its radius—and two other,
more user friendly magnitudes, the degree (D°) and centesimal
degree, or gradian (Hg):
1g = .9°; 1° = 1.111111...g;
Right Angle = 90° = 100g;
Straight Angle = 180° = 200g;
Full Angle = 360° = 400g;
There are two modern temperature scales in use today, both based
on angle measurement, and each having two different
rates/intervals with different baselines or "offsets"—two for
degrees (Fahrenheit, "°F", and Rankine, "°R") and two for
gradians (Celsius, "°C", and Kelvin, "K", with no "g" or "°").
Both Rankine and Kelvin are based on 0 being absolute zero (i.e.,
all thermal motion ceases), while Celsius is based on 0 being the
freezing point of water and Fahrenheit being the lowest freezing
point for brine (a specific salt water mixture).
One flaw (or at least discrepancy) is that the freezing-boiling
point spread for Fahrenheit is 180°/200g (a straight angle),
while for Celsius it is only 90°/100g (a right angle).
And with Fahrenheit, there is the "+32" offset.
Back when they adjusted and made Celsius the SI temperature
standard, wouldnʼt it have been better to create a "straight
angle" degree/gradian set (where o = Crtl+Shft+BA
and g = Crtl+Shft+1D4D), D°S or just Do equals HgS or just Hg,
and have either just gotten rid of the "32" and designated
Fahrenheit as being from 0-180° (rather than 32-212°) and used
that as the standard, or—if they particularly wanted a gradian
based scale—double what is now known as Celsius, so it would
range from 0-200g, thereby making it more precise than Fahrenheit
(since 1g = .9° and 1 °C = 2gS = 1.8°S),
thus 45o = 45°S = 77 °F = 25 °C = 50gS = 50g?
(Since it is a direct angle based scale, I would suggest that
there be no space between the number and °S/gS.)
Or, if they wanted a degree scale corresponding to the gradian
Celsius, reduce Fahrenheit to half its size, without the offset:
1 °F_h = 2 °F, thus having a freezing-boiling point range of
0-90°F_h (0-100g)—though, as sometimes Celsius is expressed in
half increments, I would think either 0-180o or 0-200g would be
the best scale.
From all this, the following temperatures relate as such:
[ -491.67o =-459.67 °F = 0 °R = 0 K =-273.15 °C = -546.3g ]
| | | | |
0o = 32 °F = 491.67 °R = 273.15 K = 0 °C = 0g
9o = 41 °F = 500.67 °R = 278.15 K = 5 °C = 10g
18o = 50 °F = 509.67 °R = 283.15 K = 10 °C = 20g
----------------------------------------------------
22.5o =54.5 °F = 514.17 °R = 285.65 K =12.5 °C = 25g
30o = 62 °F = 521.67 °R ≈ 289.82 K ≈16.7 °C ≈33.3g
45o = 77 °F = 536.67 °R = 298.15 K = 25 °C = 50g
60o = 92 °F = 551.67 °R ≈ 306.48 K ≈33.3 °C ≈66.7g
66.6o =98.6 °F = 558.27 °R = 310.15 K = 37 °C = 74g
67.5o =99.5 °F = 559.17 °R = 310.65 K =37.5 °C = 75g
----------------------------------------------------
70o = 102 °F = 561.67 °R ≈ 312.05 K ≈38.9 °C ≈77.8g
90o = 122 °F = 581.67 °R = 323.15 K = 50 °C = 100g
180o = 212 °F = 671.67 °R = 373.15 K = 100 °C = 200g
Thus the extreme human "comfort zone" is about 25-75g
(22.5-67.5o), with a narrower, more moderate "comfort zone" of
about 30-60o (33.3-66.7g)!
Is/was such a °S and/or gS scale in use or ever considered?
Finally, on the USMA temperature page, it says that "the freezing
and boiling temperatures of water are whole numbers, but not
round numbers as in the Celsius temperature scale".
What does that mean?
~Kaimbridge~
-- -- --
Wiki—Sites Contribution History Pages:
en.wikipedia.org/wiki/Special:Contributions/Kaimbridge
math.wikia.com/wiki/Special:Contributions/Kaimbridge
wiki.gis.com/wiki/index.php/Special:Contributions/Kaimbridge
rosettacode.org/wiki/Special:Contributions/Kaimbridge
***** Void Where Permitted; Limit 0 Per Customer. *****
_______________________________________________
USMA mailing list
[email protected]
https://lists.colostate.edu/cgi-bin/mailman/listinfo/usma
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
_______________________________________________
USMA mailing list
[email protected]
https://lists.colostate.edu/cgi-bin/mailman/listinfo/usma