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Author Topic: Refining Conversions  (Read 791 times)
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Rayne (Alýr)
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« on: 05 July 2002, 05:16:00 »

Ok, now it seems to me that some people may be having trouble with the conversions of height. Usually people can get weight with no trouble, but hieght seems to be a bit more difficult, probably because there are 12 inches in a foot, not ten. Anyhow, because of this I have made a formula that I hope might make it easier to convert feet and inches into peds.

Reason for Error:
Ok, as I understand there are 33cm in a fore. This is exact, right? There are exactly three fores in one ped, ne? Thus there are 99cm in one ped. I'm not sure if a ped should be described as being about three feet. There are, you see, 30.48cm in one foot, and thus this would mean there were about 91.44cm in one ped. This is about a 3-inch difference. I think that because of this there may be reason for error in some people's profiles. It was on this basis I used the closer estimate of 100cm equaling one ped.

Mental Process:
The first step, as I saw it, was to get rid of the confusing conversions that dealt with feet and inches. Some people would see 5'6" and plug "5.6" into their calculators when they should be pushing "5.5." It was too hard working with two sets of unites (feet and inches) at the same time, so I abolished this. the formula requires the conversion of a feet-inches height into only an inches one. So I ask that people who use the formula convert everything into inches.

Now, I had already established that about 100cm was equal to one ped, so my next step was to convert inches into cm. Not a hard process. There are 2.54cm in one inch, so by multiplying the number of inches by 2.54, I could get the same units. From here it was just a matter of dividing this number by 100, getting 0.0254. Thus it was 0.0254 that one had to multiply by to get their desired height in peds.

Dimensional Analysis:
n inches × 2.54cm/1inch × 1ped/100cm = 0.0235n peds

Formula:
0.0254n = amount in peds.

(BTW: I only wrote this much because I have nothing better to do than write about animals and play with equations.)

...Ripples in the Dream Pool...

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Bard Judith
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« Reply #1 on: 06 July 2002, 10:18:00 »

Actually, Rayne, much of Santharia does not bother with such exact measurements.  Historically they were not used in the middle ages, and even builders and architects simply used a measuring standard that was consistent against itself for the whole building.  Different people's hands were different widths, forearms came shorter or longer, and so on.  But often an approximation would suffice:  without the precision that modern chemistry and technology demands, there was no need to have every loaf of bread weigh exactly the same, or buy precisely a pound of coffee, or make your door frame fit a pre-purchased door.

The dwarves and the gnomes, and the Brownies of course, all have a refined measurement system which comes in smaller and more accurate units, but humans as yet have not adopted this system.  And for plants and animals - 'about' a foot to a yard high is the best you are going to get!  We only can give an approximation when dealing with measurements of living things, right?  Most people just need to get an idea: is this animal four to six inches large (hand) or  almost as tall as I am? (ped, ped and a half)

Anyhow - these measurements and conversions will be appreciated by the Brownies and our Chemist Gnomes, so don't throw them out just yet...   ;)  

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Rayne (Alýr)
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« Reply #2 on: 07 July 2002, 00:40:00 »

Um. I just mean to use this formula to convert from inches to peds in a manner that will be understandable to everyone. o.o; Just so that we're all on the same page.

...Ripples in the Dream Pool...

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"There is much misjudgment in the world. Now, I knew you for a unicorn when I first saw you, and I know that I am your friend. Yet you take me for a clown, or a clod, or a betrayer, and so I must be if you see me so. The magic on you is only magic and will vanish as soon as you are free, but the enchantment of error that you put on me I must wear forever in your eyes. We are not always what we seem..." -Schmendrick the Magician, The Last Unicorn
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