Notes from the bench.

Reconstitution is one equation. Almost every error made with it is a units error, and almost every units error is made in the same three places. Here is the arithmetic in full, and where it goes wrong. The equation Concentration is mass di

Almost every supplier in this industry says the same four words: third-party tested. Far fewer will say when. The order of operations is the part that decides whether the phrase means anything, and it is the part nobody advertises. Two ways