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discovery of the day - 1370°C

May. 23rd, 2005

10:51 am - discovery of the day

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i can neither spell the words Fahrenheit or Celsius on the first try.

in case you're interested:

to convert Fahrenheit to Celsius, the formula is: Tc = (5/9)*(Tf-32)
to convert Celsius to Fahrenheit, do the opposite: Tf = (9/5)*Tc+32

however, the math is hard to do in your head, so better yet, learn to estimate. you can do this two ways. once you know that F and C are the same at -40, freezing is 32F and 0C, human body temp is 98.6F and 37C, and boiling is 212F and 100C, you can make an educated guess. you can also do a little approximation math in your head. subtract 32 from your F temp and divide it by 2. add 1/10 of that number back to itself and it gives you a fairly close result. or, if you're feeling really lazy, you can just subtract 30 and divide by 2, but that's pretty darned inacurate.

***edit***

i don't think she still reads lj, but if anyone reading knows how to contact littleredhead, i'm not sure if she knows that Questa is flooding and they're talking about evacuating it.

Comments:

From:_wirehead_
Date:May 23rd, 2005 10:26 am (UTC)
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for C->F i multiply by 1.8 then add 32.

once i figure out how to divide by 1.8 in my head i'll be able to do it the other way round, as well.

but i've got some easy ones memorized, as well. not just 0->32 but 10->50, 27->80 and 37.77777->100.

we're both going to be experts at this pretty soon. ^_^
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From:_wirehead_
Date:May 23rd, 2005 10:27 am (UTC)

addendum

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i didn't know they were the same at -40. that's cool. i guess if i'd thought about it, i would've realized they had to converge somewhere.
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From:ferrousoxide
Date:May 23rd, 2005 10:50 am (UTC)
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yeah, i can't even really multiply by 1.8 (9/5) in my head. hence the estimation. i can, actually, tell mostly what temp it is outside in one system or another, but i always find conversion a bitch.
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From:ferrousoxide
Date:May 23rd, 2005 10:54 am (UTC)
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errr...that is, i can say "it feels about foo degrees out" in either system, but if i need to convert *exactly* it's a pain. what? sleep? me?
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From:_wirehead_
Date:May 23rd, 2005 01:12 pm (UTC)
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it's actually easy... B and i practiced a lot while he was in town (since my car has the temp reading and you can convert it back and forth).

if it is n degrees C outside: figure 2n. multiply by 10 to get 20n; subtract 2n from that, then divide by 10 again. then you've got 1.8n and just need to add 32.
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From:killbox
Date:May 23rd, 2005 12:45 pm (UTC)
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i can guesstimate pretty good in my head, most of my life my mom has had a F/C thermometer on her porch, and so every time i went past i would read it both ways, now i more often read it in the C range which drives her batty when she asks me as im walking past..

but all in all posting the conversion/discussing both are pretty darn sexy!
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From:littleredhead
Date:May 23rd, 2005 01:27 pm (UTC)
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you are SO sweet. (also, the memory of a pachyderm!)

I hadn't heard anything. gah! my mom lives about 10 miles north of town, in the much flatter area, so maybe?

*fret*

(I read all the time. I just never post/rarely comment anymore.)
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From:ferrousoxide
Date:May 23rd, 2005 02:32 pm (UTC)
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hey you! {hug}

yeah, they've been showing it on the news here (i'm in Abq at the moment if you hadn't figured that out). evidently, the runoff from the melting snow is causing the river there to overflow. i don't think they've done any evacuating *yet* but there's a flood warning for that whole area.
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From:ilcylic
Date:May 23rd, 2005 10:16 pm (UTC)
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Hey. I'm working (not painting) tomorrow. Lunch? I live right across the street from Los Cuates, if you felt like meeting me for mexican.

-Ogre
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From:ferrousoxide
Date:May 24th, 2005 07:59 am (UTC)
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i'm actually having lunch with K tomorrow, who's going to come fetch me and abduct me for a bit since i have hardly seen her since i've been here.
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From:ilcylic
Date:May 24th, 2005 08:46 am (UTC)
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Ok. Tell 'er I said hi, and good luck on your flight home tomorrow.

-Ogre
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