PSN-L Email List Message

Subject: Re: Man Made Quake
From: "Geoffrey" gmvoeth@...........
Date: Tue, 11 Apr 2006 14:43:08 -0700

English unit for mass is only the SLUG
Pound is only used as force.

At least this is what I was taught at ASU
by Professor Voss.

It seems to me there is no such animal
as a mass named pound.

Metric units have Newton's for force and grams for mass.

It seems to me that units are terribly misused
but I an not absolutely certain about that.

The world of science places different meanings
on these words then do the laymen.

I wish we would all just go metric everything/everywhere.

I think most folks are three ounces short of a pound
when they use the hyper-complex English measures.

All this complexity seems designed to be used by merchants
to separate man from his gold.

It would be interesting to see a mathematician or a physicist
in the white house instead of the ubiquitous politicians.


----- Original Message ----- 
From: "Jack Ivey" 
Sent: Tuesday, April 11, 2006 1:51 PM
Subject: RE: Man Made Quake

Just to pound this into the ground a little more...

1 pound force = force unit commonly known as a pound

1 pound mass = mass that produces 1 pound force in 1 g (32.17 ft/sec^2) 
gravitational field

1 slug = mass that accelerates at 1 foot/sec^2 when acted on by 
1 pound force

1 poundal = force required to produce a 1 foot/sec^2 acceleration
of a 1 pound mass

With units like this, who needs SI?



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