In conclusion: 1  Consider water from any source as contaminated with disease causing organisms. 2  By far the best way to treat water is by boiling it. 3  You only have to bring the water to a boil.  Donât waste fuel; there is no need to boil water for 10-minutes, 5-minutes, or even 1-minute.
Razor (philosophy) In philosophy, a razor is a principle or rule of thumb that allows one to eliminate (shave off) unlikely explanations for a phenomenon. Razors include: Occam's razor: When faced with competing hypotheses, select the one that makes the fewest assumptions. Do not multiply entities without necessity.
Philosophy is the study or creation of theories about basic things such as the nature of existence, knowledge, and thought, or about how people should live. He studied philosophy and psychology at Cambridge. ...traditional Chinese philosophy. A philosophy is a particular set of ideas that a philosopher has. ...the philosophies of Socrates, Plato, and Aristotle. ...a whole spectrum of political philosophies. A philosophy is a particular theory that someone has about how to live or how to deal with a particular situation.