[Land-speed] Fun things...

Larry Mayfield drmayf at mayfco.com
Wed Apr 2 10:46:00 MDT 2014

Yes! Ft-lbs rule!  


-----Original Message-----
From: Jon Wennerberg [mailto:jonwennerberg at nancyandjon.org] 
Sent: Wednesday, April 2, 2014 9:06 AM
To: Larry Mayfield
Cc: land-speed at autox.team.net
Subject: Re: [Land-speed] Fun things...

Foot pounds forever!

Jon a/k/a SSS

On Apr 2, 2014, at 11:58 AM, Larry Mayfield wrote:

> Ok, so I woke the list up with my simple what's going on message to 
> the list, eh? How about some fun thinking.  One of my pet peeves is 
> the not so subtle change from the way we talk about the units of 
> torque, i.e.  lbs-ft versus ft-lbs.  I have a hard time understanding 
> a) the necessity of that,
> b) the reasoning of it, and c) the who gives a crap of it. 
> The rules of arithmetic (math) are pretty well known, and when the 
> associative laws are used then it does not matter one whit. And we all 
> grew up using it as ft-lbs so let's start a movement back to the way
things were.
> Reasoning is thusly... think about a dyno, say a water brake one. It 
> has a lever that measures from the center line of the brake to the 
> load cell and that is usually measured in feet not centimeters, 
> millimeters, meters or yards.  The load is measured at the end of that 
> lever. The associative laws say that you can use any order in 
> multiplication of numbers and by that I mean it does not matter if you 
> multiply the length of the lever  by the load first or the load times 
> the lever. One way gets you ft - lbs, the other gives you lbs-ft.  The
order of units is not material.  And ft can stand for
> foot or feet.   
> Who's with me? Let's take our heritage back!  Ft-lb ers unite and arise!
> Time we reclaimed our way of life.. Hell Yeah!
> mayf

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