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Units pay major role in our day to day life,why it is so ? History?

Posted by Lalith Senanayake on November 11, 2013 at 11:20am in Land Surveying Industry Talk
Still we use imperial and metric units everywhere,what is big advantage of using imperial units over metric,it has taken 21 year after implementation of metic conversion low here in Sri Lanka,but still it is difficult normal citizen to understand the conversion a perch to squire meter,still values of lands given per perch.but gallon is not in use here....
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Tags: measuring, units, history, standards
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  • Lalith Senanayake November 12, 2013 at 3:49am
    I used grads theodolite T16,it is 100grads =90degrees ,
    It was so easy to read,it will be decimals of grads always not like degrees ,minutes and seconds,
    That is metric system, 360 circle in degrees = 400grads ,thats all
    Convert to hectares instead of acres for area measurement.
    Very easy to manipulate ,go for it!
    • Government Professional
      Kevin Barry > Lalith Senanayake November 12, 2013 at 7:17am

      I learnt imperial system till I was 16. I have been metricated now since 1970. but a lot of countries still have a mix of both. Give me hectares and metric any day. I remember working in an architects office when I left school and we were making our own scale rules that were a conversion from imperial to metric. Then when I worked for the Rhodesia Railways I discovered survey plans with Cape Feet as a slightly different measurement to a standard english foot. I wonder what the Chinese use. I will ask one of my survey buddies at work on the local council. He is chinese. Good topic Lalith. 

  • Government Professional
    Kevin Barry November 11, 2013 at 3:32pm

    I remember learning about grads at College. Where I think there was 100° in a rightangle. Does any one use this system of measurement or is it purely military?

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