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Try to use proper units

Discussion in 'Off Topic' started by WarpedOne, Nov 6, 2012.

  1. WarpedOne

    WarpedOne Mainecoon Butler

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    #1 WarpedOne, Nov 6, 2012
    Last edited by a moderator: Nov 6, 2012
  2. perbakken

    perbakken Member

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    #2 perbakken, Nov 6, 2012
    Last edited: Nov 6, 2012
    Sorry - thought you knew what I meant as I also included the driving range. Anyway - now it is fixed.
     
  3. Johan

    Johan Took a TSLA bear test. Came back negative.

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    Obviously you knew. Even Tesla themselves sometime use kW instead of kWh. I know it's wrong but hey, what's the big deal.
     
  4. Zzzz...

    Zzzz... Member

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    I never saw Tesla being so unprofessional and lame as to use kW instead of kWh.

    And deal here - it is really confusing to see, and cast doubts whether to believe what was written or not.

    Again, it is not simply wrong, but in fact confusing.

    - - - Updated - - -

    PS. Just like someone using kilograms instead of kilometers to describe radius of the Earth...
     
  5. ohh

    ohh Member

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    More like using Miles instead of miles per hour, when talking about speed, no...?
     
  6. WarpedOne

    WarpedOne Mainecoon Butler

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    Exactly, it is wrong and confusing.
    There are already too many people that can't tell the difference between kW and kWh. Those who understand should use right terms and not add to confusion.

    Especially because max battery power (measured in kW) is the primary factor affecting battery life.
     
  7. Zzzz...

    Zzzz... Member

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    #7 Zzzz..., Nov 6, 2012
    Last edited: Nov 6, 2012
    nwm..
     
  8. NigelM

    NigelM Recovering Member

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    OK people....enough discussion about the typos of someone who has english as a second language. I hope all the engineers are smart enough enough to know when a simple mistake is made and to understand it and move on?
     
  9. doug

    doug Administrator / Head Moderator

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    Correct units definitely matter, and I've seen Tesla make that mistake plenty of times...
     
  10. Ben W

    Ben W P85 #61, Roadster #108

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    Well... Fuel economy (with gasoline) is properly measured in Gallons per Mile, which has units of volume (gallons) per distance (mile), which in metric is m^3 / m, or m^2. So gas mileage is technically measured in square meters. Figure that one out :)
     
  11. woof

    woof Model S #P683 Blue 85 kWh

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    Obligatory XKCD: Droppings

     
  12. Oyvind.H

    Oyvind.H Member

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    I`m from Europe. Could you elaborate "mileage in square meters"? Or was it just a joke :)
     
  13. eledille

    eledille TMS 85 owner :)

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    #13 eledille, Nov 16, 2012
    Last edited: Nov 16, 2012
    Imagine the fuel stretched out along the road in the shape of a very long cylinder, and a car that picks the fuel up and burns it as it goes. The fuel economy is the cross-sectional area of the fuel cylinder!

    Let's see - 10 liters per 100 km. That's 10/1000 cubic meter of fuel, and 100 000 meters. (10/1000)m[sup]3[/sup]/100000m = 0.1mm[sup]2[/sup]. :biggrin:

    *edit* Dang - xkcd/woof already did that :(

    *edit 2* There's an error in the final equation in that XKCD post, a "per bird" is missing - email sent :)
     

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