BTW

posted by [identity profile] blumindy.livejournal.com at 05:18am on 2004-03-27
How about converting those slugs to Newtons for us?
(I agree with the "ew" on mixing English and metric. Kind of like adding -aholic or -gate as suffixes to words.....)

Or turn the slugs into Escargot D'Glenn....you might as well make some sort of use of them......(garlic and bitter chocolate and a touch of tarragon?)

Hmmm, vapor units.......maybe we could relate that as a measure of fibro-fog!

PS Not *FIG* Newtons!
Oh, no! You've started me on a Silly Day!
 
posted by [identity profile] juuro.livejournal.com at 12:06pm on 2004-03-27
Is slug not just pounds-force?
 
posted by [identity profile] dglenn.livejournal.com at 12:13pm on 2004-03-27
Pounds are properly force, but just as kilograms can be used as a unit of force (it annoys me, but apparently it's considered correct to use kg to mean 9.8 N), pounds get sloppily used for mass as well.

Correctly, the slug, not the pound, is the unit of mass in the fps system. It's the amount of mass which one pound of force will accelerate at one foot per second per second.
 
posted by [identity profile] juuro.livejournal.com at 12:40pm on 2004-03-27
Ah. that way round. Thank you.
 
posted by [identity profile] blumindy.livejournal.com at 12:40pm on 2004-03-27
No, they are are a gravitational mass unit of acceleration in the foot-pounds-second realm (I think.)

I think the acceleration = one pound/sec^2
Application of a pound of force gives 1 slug or the equivalent of 32 pounds of mass per second^2.

My memory for this stuff isn't what it used to be.
 
posted by [identity profile] juuro.livejournal.com at 12:46pm on 2004-03-27
Uff. Acceleration conventionally is [unit of length] / [unit of time squared]. There's one problem. The other is that I can't readily see where the 32 comes from.

(I could say something about a system of units where there are multiples of 12, 16, 8, 4, 3, and things that are not multiples but something elses, but those are units of currency, not units of physics, and I shall leave the whole imperial measurement system alone just remarking that the imperial and colonial pound and pint are not the same just to confuse us modern metric morons.)
 
posted by [identity profile] dglenn.livejournal.com at 01:08pm on 2004-03-27
g = 32 feet per second per second. So it's a natural number to reach for when trying to remember relationships between units of mass and units of weight, if one's used the system long enough to remember g in it.

As for the rest of your comment, there are several reasons I strongly prefer the metric system if I'm going to need to do any calculations.

It's not just the dozens and sixteens; it's also the downright wonky constants you wind up with as a result. In mks some textbooks even round g off to 10 for end-of-chapter problems, and the only pain-in-the-butt conversion constant I remember having to deal with was when converting Joules to calories. (Unless I'm forgetting something involving coulombs.) Despite having been raised in fps and living in a culture that continues to use it most of the time, I really don't want to do any math or science in fps. Meters, kilograms, Newtons, Kelvins, and liters for me, thank you very much.

(Though there is something to be said for the number of convenient factors that go into Babylonian base-60 measurement systems, as well...)

(Doh! Okay, I do remember one other oddball constant: liters/mole @ STP. But ISTR that being easy to remember because it was the same digits as the altitude of geosynchronous orbit with a different exponent, right? And then there's G and Avogadro's number, but those aren't everyday outside-the-lab numbers the way that some of the others are.)
 
posted by [identity profile] juuro.livejournal.com at 01:20pm on 2004-03-27
...that being easy to remember because it was the same digits as the altitude of geosynchronous orbit ...

That's serious indication of geekery there! And yes, I think the two mantissae are close.

For some reason, Avogadro is rather close to the top of the random-access heap for me. I wonder why... There was a time when I was doing ions as function of current, but that's long ago, I can't seem to recall having used it for anything in a long time.

Boltzmann is something I use all the time, and it is a stand-alone value for me. Probably someone might derive it from the first principles; not me, though.
 
posted by [identity profile] juuro.livejournal.com at 01:26pm on 2004-03-27
And isn't Joules to calories related by the heat capacity of water? That, of course, anyone will remember.
 
posted by [identity profile] dglenn.livejournal.com at 12:10pm on 2004-03-27
"How about converting those slugs to Newtons for us?"

No, I don't think I shall. But I might convert them to grams, and convert pounds to Newtons.

Feh. The Unix 'units' command wants to treat pounds as mass instead of weight. :-P Fortunately I can force it to behave.

[1] saltmine 50 > units
you have: slug
you want: kg
        * 1.459390e+01
        / 6.852177e-02
you have: lb-force
you want: newton
        * 4.448222e+00
        / 2.248089e-01
you have: ^D
[1] saltmine 51 >


"Or turn the slugs into Escargot D'Glenn"

Bleah. Even when I ate meat, I did not consume anything from phylum Mollusca.

"Hmmm, vapor units.......maybe we could relate that as a measure of fibro-fog!"

State level of alertness / mental "presence" as a partial-pressure?

"PS Not *FIG* Newtons!"

Helluva lot better than escargots!

(Is a fig Newton the force required to accelerate a fig at one meter per second per second?)
"Oh, no! You've started me on a Silly Day!"

Can we plot that on an o-sillyscope?
 
posted by [identity profile] blumindy.livejournal.com at 12:46pm on 2004-03-27
*Snerk*
Well, you know I don't eat Mollusca either. Nor Crustacea, nor Cephlopoda......you have to love the kashruth rules :-) But I do prepare all that stuff for others.

"Hmmm, vapor units.......maybe we could relate that as a measure of fibro-fog!"

State level of alertness / mental "presence" as a partial-pressure?
*Works for me!*

The problem with the edible Newtons is my fingers' reaction to the wheat. Otherwise, I'd much rather eat them than any shelly-thing!

Wiggling all over the O-Silly-scope! Thanks!!
 
posted by [identity profile] dglenn.livejournal.com at 01:14pm on 2004-03-27
Yah, I know, http://www.godhatesshrimp.com/ ;-)
 
posted by [identity profile] blumindy.livejournal.com at 02:29pm on 2004-03-27
Yes, I've seen this site.
L-edMAO.
Those who espouse the belief in the "literal-word-of-God" bible and adherence to it kill me. They don't follow any of the admittedly-massive number of rules except for the ones that meet their pre-set agenda. 'sigh'

I had fibroid trouble this week and a woman attributed it (and the bad behavior of the ex) to Satan. Mentioning the Bat Mitzvah shut her up quick. She's the one who sent out the district-wide email exhorting all employees to see The Passion.....

(Please, please, please...get me out of this alternative universe! 0
 
posted by [identity profile] juuro.livejournal.com at 02:45pm on 2004-03-27
Massive number? 613 by some authority, although there seems to be some disagreement on the exact contents of those 613 items.
 
posted by [identity profile] juuro.livejournal.com at 02:47pm on 2004-03-27
1. "O-sillyscope"... ... aaa... aaa.. AAAGH!

2. The Western society ignores a nubmer of valuable sources of protein and other nutirents.

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