Spike Jones wrote:
>
> Dan Clemmensen wrote:
>
> > Dan, you idiot! 200mm is about 8" alright, but the new 12" generation
> > is actually 300mm, NOT 400mm!! can't you een multiply! Who is
> > this guy! Get him outta here!
> > (OOPS, this guy is ME! :-)
>
> dan you sound like your sense of humor is like mine! {8^D its
> not all your fault tho. this english system of measure is an
> abomination,
> confusing (even to one who used it almost exclusively until college)
> and an embarrassment. inches? feet? furlongs per fortnight?
>
Yeah, spike, but 300mm is a basic part of my life. It's the
distance light travels in a nanosecond: a light-nanosecond is
about one foot, and is 300mm to six decimal places.
I can never directly remember the miles-to-kilometers conversions, but I can remember the speed of light in Km (300,000 Km/s) and in miles (186,000 mi/s), both numbers good to six places. Therefore, one Km equals .62 mi. Simple.