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Shopping Online

Shopping online is incredibly convenient for most people, but some consumers fear the (very real) possibility of Internet fraud. Protect yourself from online scams and identity theft when shopping…

The History of Color

Learn how people in ancient times created color for their garments by Catherine McNiff Related Links Color Psychology QuizColor: Psychology, Symbolism, and Interesting FactsWhat is Color?What…

Algebra: Introducing Variables

Introducing Variables Algebra Encountering Expressions Introducing Variables Translating Words into Math Behold the Power of Exponents Living Large with Scientific Notation Dastardly…

Chemistry: Gas Stoichiometry

Gas StoichiometryChemistryStoichiometryStoichiometry: Fun to Say, Fun to Do!Simple Stoichiometry CalculationsLimiting Reactant ProblemsGas Stoichiometry Though we've limited our discussion of…

COVID-19 Resources

How to stay informed in times of crisis The COVID-19 outbreak is currently affecting huge numbers of people worldwide; whether people are sick, under lockdown, or simply dealing with supply line…

Brewer's: Umbrella

Common in London in 1710. First used in Edinburgh by Dr. Spens. First used in Glasgow in 1780. Mentioned by Drayton in his Muscs Elizium (1630); but Drayton evidently refers to a sort of…