Article View: alt.folklore.science
Article #1198Re: Celsius and Farenheit Scale Determination
From: Michael Stemper
Date: Tue, 26 Jan 1993 19:21
Date: Tue, 26 Jan 1993 19:21
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1721 bytes
[authors deleted to prevent accidental misattribution] >>>>Most thermometers that you would use to measure body temperature are >>>>accurate to 3 digits anyway. >>> >>>BULLSHIT: 3 digit accuracy implies 1 part per thousand. >>> You might manage 1 part per 50 (ie 2%). >>> This implies tenth of a degree over a 5 degree range (37 to 42C). BullShit yourself! 1 part per thousand is of the quantity being measured, not relative to some arbitrary starting point (such as the triple point of water or the lowest number on your instrument). The fact that your instrument only reads temperatures between 37C and 42C is irrelevant. All that matters is that it is within +/-0.1K in that range. Let's say you measure something's temperature as 37C +/- 0.1C That means that the temperature is between 36.9C and 37.1C However, the total temperature is (273.15K)+(37C +/- 0.1C), or: 310.15K +/- 0.1K, which is between 310.05K and 310.25K, or better than one part in THREE thousand! -- #include <Standard_Disclaimer.h> Michael F. Stemper Power Systems Consultant mstemper@ems.cdc.com
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Path: arc1-ca.pugleaf.net!sparky!uunet!timbuk.cray.com!raistlin!ems!ems.cdc.com!mstemper From: mstemper@ems.cdc.com (Michael Stemper) Newsgroups: alt.folklore.science Subject: Re: Celsius and Farenheit Scale Determination Message-ID: <31890@nntp_server.ems.cdc.com> Date: 26 Jan 93 19:21:59 GMT References: <C0vA2L.BBq@world.std.com> <0iTgXB2w165w@cerianthus.pinetree.org> <1jjnrvINN1tq@nanette.sto.pdb.sni.de>,<C1665H.Ap@knot.ccs.queensu.ca> <1jofluINNt5t@gap.caltech.edu> Sender: sys@ems.ems.cdc.com Reply-To: mstemper@ems.cdc.com Organization: Empros Systems International Lines: 26 Nntp-Posting-Host: kirk.ems.cdc.com