Go Back   Science Forums Biology Forum Molecular Biology Forum Physics Chemistry Forum > General Science Forums > Physics Forum
Register Search Today's Posts Mark Forums Read

Physics Forum Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


High precission unit conversion constants?

High precission unit conversion constants? - Physics Forum

High precission unit conversion constants? - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-28-2006, 03:38 PM
Steve Nelson
Guest
 
Posts: n/a
Default High precission unit conversion constants?



I am writing an ignition tuning program for an open source ignition
controller. I have a feature which converts pressure units. The
conversion
constants that I was able to get off the internet allow me a 9 digit
precision, however, much more precission is possible and I would love
to
utilize it all. Problem is I can't find the information I need.
Please
help me if you can. I need constants for 15 or even better 18 digit
precision.

A rule of thumb for Usenset, don't say need when you mean "want".

A pascal is defined as a newton meter. A newton is defined as the
force to accelerate a kilogram by a certain amount. But here's the
rub: The kilogram is defined to be the mass of an actual physical
artifact and it can only be measured with some uncertainty. So you are
faced with that uncertainty, and I suspect the numbers you are using
are the best available.

I recall reading that copies of the standard mass sent around the world
to some of the major countries do not now weigh the same as when they
were made. Take a look at this site to get an idea of the status of
this problem.

[Only registered users see links. ]

Reply With Quote
Reply

Tags
constants , conversion , high , precission , unit


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
High precission unit conversion constants? O5O Physics Forum 0 06-03-2006 06:57 PM
High precission unit conversion constants? O5O Physics Forum 0 06-03-2006 06:14 PM
High precission unit conversion constants? O5O Physics Forum 0 06-03-2006 05:35 PM
High precission unit conversion constants? PD Physics Forum 5 05-28-2006 01:20 AM
GNU units and units.dat; Units of Measurement and Unit Conversion James Redford Physics Forum 0 07-31-2005 12:08 PM


All times are GMT. The time now is 11:29 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 - 2012 Molecular Station | All Rights Reserved
Page generated in 0.13249 seconds with 16 queries