Open Systems [edit]. A system that interfaces and interacts with its environment, by receiving inputs from and delivering outputs to the outside, is called an open system.
Colgate (toothpaste) From Wikipedia, the free encyclopedia. Colgate (sub-brand of Colgate-Palmolive) is an oral hygiene product line of toothpastes, toothbrushes, mouthwashes and dental floss. Colgate toothpaste was first sold by the company in 1873, sixteen years after the death of the founder, William Colgate. 1 History.
great invention! old-fashioned Colgate works better... gets rid of pimples AND tar... besides leaving you a fresh, minty breath... Just be sure not to run out of toothpaste till the end of the month, or you'll miss its quasi-miraclous effect :D...