[ltp] how to start with thinkpad T60?

James Knott linux-thinkpad@linux-thinkpad.org
Sun, 17 Feb 2008 15:29:53 -0500


Mario Butter wrote:
> Oh, and BTW, can you explain why the Celcius scale is better than the
> Fahrenheit scale?
>   

Well, as I understand it, there is no definite method known, that 
Fahrenheit used to calibrate his scale, other than noting things he 
thought were hot or cold etc.  On the other hand the Celcius scale has 
precisely defined points, based on the Kelvin scale, which in turn 
relates to temperature above absolute zero.  The 0 & 100 degree points 
originally referred to the freezing and boiling points of water, under 
specified test conditions.  Those points have been slightly revised to 
bring the scale in line with Kelvin.  Further, virtually all of the 
measurement systems used in science are tied together through the metric 
system, precisely defined and traceable back to some fundamental 
constants.  No such relationship exists in imperial measure, which often 
varies around the world. i.e the U.S. and British gallons are different 
sizes.  There are different miles, depending on who does the measuring 
and so on.

As far as the marks on the side of a thermometer go, there's no 
difference, as the precision of either can be extended simply by using 
more digits, provided the thermometer is capable of supporting that 
precision.  But to simply say the Fahrenheit scale is more accurate, 
because there are more degrees on it is absolute nonsense.


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