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OT Fahrenheit

Discussion in 'Electrical Engineering' started by Terry, Nov 8, 2006.

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  1. Terry

    Terry Guest

    Now that the winter is here I have my thermostat set to 70. That
    sometimes seems a little low. When I push it up to 71 it seems a
    little warm. The place I notice it the most is when I am setting at
    my computer desk. I have on the wall behind it. The desk does not
    cover the vent.

    I can imagine that people using the Celsius scale would notice one
    degree more or their thermostat has half degrees.

    I also found this at the roulette wheel of knowledge.
    http://en.wikipedia.org/wiki/Fahrenheit
     
  2. Tony Hwang

    Tony Hwang Guest

    Hi,
    So now you know equvalent of 1 deg. F in Celcius?
    Your thermostat has something called anticipator and more advanced
    digital ones have temperature band(how accurately it'll control
    temperature).
     
  3. Guest


    That's a guy from above the 26th parallel talking. We have our water
    pipes above ground here and zero C is very significant.
     
  4. Dick Adams

    Dick Adams Guest

    I'm missing somthing here. Did you mean the 56th parallel?
    Where do you live?

    Dick
     
  5. mm

    mm Guest

    Or 68!
     
  6. Dick Adams

    Dick Adams Guest

    I don't know where you are, but weather reports and temperatures
    on buildings are all in Fahrenheit. Schools teach metrics as
    though it was a foreign language. While whiskey, wine, and soda
    are measured being soda are being sold in metric, beer and most
    other necessities of life are sold in US measurements. Try to
    by lumber by the meter.

    Dick
     
  7. Doug Miller

    Doug Miller Guest

    Hint: note his email address. The ".ca" means Canada.
    Not in Canada, they're not.
     
  8. Don Kelly

    Don Kelly Guest

    ----------------------------
    ------
    Right on- by the way, I am 75 and have no problem with Celsius after our
    long overdue conversion.
    20-21C is fine , 0C cover your tender plants and watch for icy
    atches. -40 C= -40F -Shirtsleeves are fine for 50-100 meters depending on
    the wind as humidity is not a problem (better than NYC at temperatures near
    0C).
    100C makes sense as well as 0C in that boiling water is something you don't
    want to wash your willie with.
    It really is a matter of associating what you feel with the scale.

    (Fahrenheit zero is based on the commonsense measure of the freezing point
    of a saturated salt solution which everyone has on hand, and boiling point
    is 180 degrees above the freezing point of "pure" water. Completely logical
    of course )

    As for thermostats- I wonder how many are accurate to within 1 division on
    their scale and, if so, what does it mean at some other location in the
    house or even the room?
     
  9. Guest

    South Florida. It never gets below 0 C here.
    That is the threshold that would make me move farther south.
     
  10. Don Kelly

    Don Kelly Guest

     
  11. Guest


    Try to buy plywood that isn't measured in mm. That is why you don't
    see real 3/4" or 1/2" plywood these days It is 16mm and 12mm.
    I bet if you really measure closely the 4x8 is really 1220mmx2440mm.
    China is metric you know.
    Some marine or cabinet grade stuff still really measures 1/2" and 3/4"
    but you probably won't be buying that at the BORG
     
  12. Guest


    You probably have different criteria for swimming pool temperatures
    too I suppose. I use the metric system for that. 30C and over is to
    warm and anything below 27 is getting too cold. 25 is freezing.
     
  13. krw

    krw Guest

    Mine is set to 64F now (morning), 59F at night, and 67F in the
    evening. If we're cold, it gets cranked up but we usually don't.
    Sweaters and sweats are the norm. The cats have coats on. ;-)

    BTW, our frost line can go down beyond 7' (broken mains down that
    far).
     
  14. krw

    krw Guest

    Farenheit is decimal. ;-)
    Light years don't exist?

    <snipped top poster's out-of-line quotes>
     
  15. krw

    krw Guest

    The seem to be pretty common here in VT (~45N), though I haven't a
    clue why.
    I had a pool when we lived in NY. Depending on the outside
    temperature, 25C was about the bottom end I'd use it. A few times
    it got up to 30C, but unless it was 35C outside it was like taking
    a bath.
    Ouch.
     
  16. Goedjn

    Goedjn Guest

    My understanding is that 0 F was just the lowest temperature
    that Farenheit could reliably generate.
     
  17. Default User

    Default User Guest

    Dave Smith wrote:

    I disagree, even though I have a science background (Physics). Metric
    is great for doing that sort of thing, but for weather, not so much.

    Fahrenheit is good because 100F is really nice and hot, and 0F is
    really nice and cold. Bounds the temps that humans deal with rather
    nicely. 100C is outside the range of experience (one hopes) and 0C is
    coldish. Who cares what temperature water boils at?

    The degrees F have nice granularity, so you don't have to deal with
    fractional ones when describing the weather.




    Brian
     
  18. Malcolm Hoar

    Malcolm Hoar Guest

    http://chem.oswego.edu/chem209/Misc/fahrenheit.htm

    --
    |~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~|
    | Malcolm Hoar "The more I practice, the luckier I get". |
    | Gary Player. |
    | http://www.malch.com/ Shpx gur PQN. |
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     
  19. Goedjn

    Goedjn Guest

    Stupid example, though. If you're going 100 MPH, a 500 mile
    trip also takes five hours. If you're only using one set of
    units, it doesn't make any difference what they are.
     
  20. Default User

    Default User Guest

    I don't follow. We're talking about people and weather, so why would
    anything else be relevant?
    Yet we generally use fractional degrees C, but not F. I'm talking
    practice, not theory.




    Brian
     
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