Hilmar;

A fun URL

http://www.allmeasures.com/

From my friends up the road from me: Explore this carefully.

http://www-ksl.stanford.edu/knowledge-sharing/ontologies/html/standard-units/MOLE.html

I have stated this before and will do so again: My Physics Professor Dr. Paxton, could convert apples to oranges! Certainly an amazing Phd! He did so using mathematics and not the “real thing”! :)


Tom


>http://www.physicsweb.org/article/news/7/9/9
>
>From the seven basic SI-units, the kilogram is the only one that is not yet defined in terms of fundamental constants. Instead, it is defined as the mass of a prototype. Scientists want to change this.
>
>(For those who are not familiar with the SI-system: the SI-system is the international standard for units of measure. It has seven base units:
>
>Kilogram for mass
>Meter for length
>Second for time
>Ampère for electrical current
>Mole for amount of substance
>Kelvin for temperature
>
>and a unit for brilliance, IIRC.
>
>All other units are derived from the base units; for instance, speed is measured in meters/second.)