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Thread: HP to Kw - HELP

  1. 2nd December 2008, 01:40 PM #11
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    Remembering stuff is for quiz show geeks.

    This is how I do it
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  2. 2nd December 2008, 04:53 PM #12
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    Quote Originally Posted by foz.in.oz View Post
    Remembering stuff is for quiz show geeks.

    This is how I do it
    That's the way I do it too. I've got that same little program on all my computers, plus extra copies on all portable drives. Was going to post it on here, but didn't (still don't) know how to attach it as a zip file.

    I've got a few other handy little programs like this one as well, including one for working out pumping and power requirements, and a couple for risk assessments / risk ranking (the safety nazis on the mine sites really love these things).
    Cheers .........

    BMKAL

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  3. 2nd December 2008, 04:57 PM #13
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    Quote Originally Posted by p38arover View Post
    I thought everyone knew that - without resorting to Google. Didn't you learn it at school? I did - over 45 years ago.

    What are they teaching you lot at school now?
    Algebra and crap like that what you never need

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  4. 2nd December 2008, 05:34 PM #14
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    Quote Originally Posted by long stroke View Post
    Algebra and crap like that what you never need

    TIM.

    Algebra and geometry are useful. I used them a lot after I left school - no, I'm not a surveyor, I'm an electronics tech.

    Calculus is a waste of time at school - teach it in Uni.
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  5. 2nd December 2008, 06:10 PM #15
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    I there are 3 different HP standards. DIN (German and all of the EU). JIT ? (Japan) and SAE (US). They aren't equivalent either. Some horses are bigger than others. I believe it's DIN-SAE-JIT (largest to smallest).
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  6. 2nd December 2008, 06:20 PM #16
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    Quote Originally Posted by p38arover View Post
    Algebra and geometry are useful. I used them a lot after I left school - no, I'm not a surveyor, I'm an electronics tech.

    Calculus is a waste of time at school - teach it in Uni.
    If you need calculus at uni, then it's far too late to be starting to learn it.
    I don't use calculus every day, but on average I use it more than once a week.
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  7. 2nd December 2008, 06:34 PM #17
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    Algebra, calculus and geometry (and trigonometry) are skills I have used ever since learning them at high school. And while I have used them in my work, I have probably used them more in everyday life.

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  8. 2nd December 2008, 06:40 PM #18
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    Since we're off topic anyway, I hated calculus and it hated me. Can I ask what on earth it's used for in everyday applications? (apart from to teach to kids)
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  9. 2nd December 2008, 07:13 PM #19
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    Quote Originally Posted by Brian Hjelm View Post
    just remember the factor is hp = 4/3 of a kw, close enough for government work.

    That might be why government work seems a little 'out' on occasions. Maybe 1hp=3/4 kw instead of 4/3??

    hahah

    Cheers!
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  10. 2nd December 2008, 07:32 PM #20
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    Quote Originally Posted by moose View Post
    Since we're off topic anyway, I hated calculus and it hated me. Can I ask what on earth it's used for in everyday applications? (apart from to teach to kids)
    Main everyday use would be to go from rates of change to quantities and vice versa. For example, working out stopping distances for different speeds, or in boat or air navigation planning, or power required to do things. There are usually other ways to solve these, but calculus enables you often to do them without tables or graphs or rules of thumb or even without having a calculator or having to remember formulae.

    But perhaps most importantly, an understanding of calculus helps you to understand how a lot of important everyday things work - everything from driving to shooting to flying to engines. It is part of the knowledge that enables you to immediately spot things such as perpetual motion of various kinds that cannot possibly work, regardless of new discoveries, and to quickly estimate whether something can work the way it is claimed.

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