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Thread: unit-less values

  1. #1 unit-less values 
    Moderator Moderator AlexP's Avatar
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    When some type of value doesn't have a unit of any sort (electronegativity, for example), does that mean that it can never be measured directly, but only found by extrapolation from values that do have units?


    "There is a kind of lazy pleasure in useless and out-of-the-way erudition." -Jorge Luis Borges
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  3. #2  
    WYSIWYG Moderator marnixR's Avatar
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    what if you count the number of a set of items ?


    "Reality is that which, when you stop believing in it, doesn't go away." (Philip K. Dick)
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  4. #3  
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    To my knowledge it is not possible to measure directly a dimensionless property. Take strain for example, it is required that you know both the original length and the final length of some deformed body to calculate the strain, you cannot simply measure it with a magic ruler.
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