Re: MMC warming

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Peter Komen by way of Terry Fritz <twftesla-at-qwest-dot-net>" <pkomen-at-zianet-dot-com>

Hey guys, don't make this worse than it is.

(F - 32)/1.8 = C
or
(C * 1.8) + 32 = F

Assume a function f(F) = C.  There is a reciprocal function that can be
worked out later.  We know this is a straight line function so f will have
the form  (F + a) * b = C.  f(32) = 0 and plugging in the values (32 + a) =
0 / b or a = -32

f(212) = 100 again plugging in values (212 - 32) * b = 100 or b = 100/180
and so

f(F) = (F - 32)/1.8 = C and the reciprocal (1.8 * C) + 32 = F

102F is about 39C and 85C is 185F

I appreciate the history.

Regards,

Pete Komen

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, June 10, 2002 11:49 AM
Subject: Re: MMC warming


> Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<jimlux-at-earthlink-dot-net>
>
> 1.8 degrees F = 1 degree C
>
> (boiling to freezing in Celsius (Centigrade)) 100 - 0 = 100 degrees C
> (boiling to freezing in Fahrenheit)           212 - 32 = 180 degrees F
>
> Now don't get started on degrees Reaumur (freeze = 0, boil = 80)
>
> Celsius. This mercury-in-glass scale was devised as early as 1710 and was
> used by Linnaes at Uppsala certainly before 1737. The zero of the scale
> represents the melting point of ice and the boiling point of water is
taken
> to be 100 degrees. In continental Europe the scale has always been known
as
> the Celsius scale in the mistaken belief that it was invented by Anders
> Celsius (1701-1744), whereas Celsius proposed a scale which had zero for
> the boiling point of water and 100 for the melting point of ice. The scale
> was inverted by J. P. Christen (1683-1755) in 1743. In England the scale
> was originally called the Centigrade scale but this name was abandoned in
> favour of Celsius in 1948.
>
> Fahrenheit. This scale was composed by G. D. Fahrenheit (1686-1736)
between
> 1710 and 1714. Three fixed temperature points were used - the temperature
> of an ice and salt mixture, the freezing point of water and normal human
> temperature - which were taken to be 0, 32 and 96 respectively. It is mere
> coincidence that the temperature interval between the freezing (32°F) and
> boiling (212°F) points of water is 180° when expressed in the Fahrenheit
> scale.
>
> Reaumur. An arbitrary scale in which the freezing and boiling points of
> water are taken to be 0 and 80°R respectively. R. A. F. Reaumur
(1683-1757)
> deduced his scale in 1730 from the thermal expansion of an alcohol and
> water mixture. When he considered the `length' to be 1000 units at the ice
> point he found that at the boiling point the length had expanded to 1080
> units, hence the peculiar figure of 80 in his scale.
>
>
> Tesla list wrote:
> >
> > Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <Parpp807-at-aol-dot-com>
> >
> > In a message dated 6/9/02 11:52:31 PM Central Daylight Time,
tesla-at-pupman-dot-com
> > writes:
> >
> > Steve,
> >
> > > Off hand i do not know how many degrees C that is
> >
> > Degrees C = F-32 / 1.6
> >
> > Degrees F = 1.6C +32
> >
> > Hope that helps.
> >
> > Ralph Zekelman
>
>
>
>