Warp <war### [at] tagpovrayorg> wrote:
> Darren New <dne### [at] sanrrcom> wrote:
> > I don't think it really matters that things are
> > specifically multiples of 10 until you start getting into figuring out
> > ranges of numbers where exponents come into play.
>
>   I don't really agree with that. The metric system makes it trivial to
> switch between units as needed without the need of any calculations
> whatsoever.
>
>   For example, a person can be 180 cm tall, or 1.8 meters tall, or 1 meter
> 80 cm tall. All three of these are completely and trivially exchangeable
> with each other without the need to do any kind of mental calculations
> whatsoever.
>
>   This makes it much more intuitive and easy to quickly get a grip on
> everyday measurements, as compared to familiar measurements (such as
> your own height). For example, if someone tells you "the stick is 160 cm
> long", then you immediately get a mental image of how long it is if you
> yourself are 180 cm tall: It's something like a head less than you.

well put.  The thing about Imperial Units is... is it 10 of my foot or 10 of my
daughter's foot?  makes for a substantial change...

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