"redbelly" wrote in news: snipped-for-privacy@e3g2000cwe.googlegroups.com:
Let me try to explain the arguement a little better: The dekameter is a unit that's too small of a difference to mess with. Sure, there's all kinds of things that's close to a dekameter, but you'd spend too much time wondering "dekameter" or "centimeter" when eyeball-measuring something.
The question becomes "Is it 10, 100, or 1000?" I screwed up a Physics Lab calculation last week and was off by a factor of 10. Luckily, it didn't screw everything up...
Puckdropper