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    Re: Kollsman periscopic sextant mount
    From: Bill Lionheart
    Date: 2020 Sep 22, 10:51 +0100

    I was amazed when I first went to UC Berkeley in the 1980s to hear
    kids were taught to do physics in obsolete units, I had only met this
    with my dad who could do foot pounds per fortnight, brake horse power
    and British Thermal Units and other such nonsense.
    
    Do science and engineering  in SI people (or closely related by
    factors of 10 etc)  that's the standard and it is designed to be
    easier and to facilitate international working. You can still drink
    pints of beer and say you have a 39 foot boat in conversation, or "not
    give an inch" , but Farenheit, Inches of mercury, imperial weights and
    measures, depths in fathoms... that is only any use for studying
    history.
    
    Bill
    
    On Tue, 22 Sep 2020 at 02:00, Gary LaPook  wrote:
    >
    > Oh, and while you are at it, rip out the tachometers from your car and 
    replace them with tachs calibrated in the metric unit of rotation, radians 
    per second. And, I almost forgot, your speedometer has to go because 
    "kilometers per hour" is not a metric unit of speed since "hours" do not 
    exist in the metric system, only "seconds." You need  a speedo marked in 
    meters per second. Oh, another thing, we have to pick up all of our railroad 
    tracks (and we have more that the rest of the world combined) and change them 
    to the metric gauge for railroad tracks which will, of course, mean repacing 
    all of our rolling stock too. Yep, America (you know, the country that put 
    man on the moon) should definately go metric.
    >
    > gl
    >
    > View and reply to this message
    

       
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