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Chemistry: Separating Mixtures

Separating MixturesChemistryElements, Compounds, and MixturesPure SubstancesShake It Up: MixturesColloids: Somewhere in BetweenSeparating Mixtures One of the most important things that chemists do…

Wealth and Poverty: What's the Government's Role?

What's the Government's Role?Wealth and PovertyIntroductionWhat Is Poverty?Who's Got How Much?Why Incomes Are Becoming More UnequalWhat's the Government's Role?Other Aspects of Wealth and PovertyThe…

Theories of the Universe: The Important Part

The Important Part Theories of the Universe It's All Held Together with Strings A Brief History of String Theory The Important Part The Second Requirement, Extra Dimensions How Many…

Making Wishes

The ancient Greeks threw coins in their wells, hoping to keep the wells from running dry. Today, people throw coins in fountains to make wishes come true. But don't throw all your coins into one…

Hoaxes - E-mail

E-mail Emergencies? by Jarrett Tolman   Kurt Vonnegut@MIT     "Ladies and gentlemen of the class of '97… Wear sunscreen." Thus began Kurt Vonnegut's commencement…

North Carolina

Capital: Raleigh State abbreviation/Postal code: N.C./NC Governor: Roy Cooper, D (to Jan. 2021)) Lieut. Governor: Dan Forest, R (…

anesthesia

(Encyclopedia) anesthesiaanesthesiaănĭsthēˈzhə [key] [Gr.,=insensibility], loss of sensation, especially that of pain, induced by drugs, especially as a means of facilitating safe surgical procedures…

iodine

(Encyclopedia) iodineiodineīˈədīn, –dĭn [key] [Gr.,=violet], nonmetallic chemical element; symbol I; at. no. 53; at. wt. 126.90447; m.p. 113.5℃; b.p. 184.35℃; sp. gr. 4.93 at 20℃; valence −1, +1, +3…

Aden

(Encyclopedia) Aden Aden äˈdən, āˈdən [key], city, SW Yemen, on the Gulf of Aden near the southern entrance to the Red Sea. It is the chief port of Yemen. Aden consists of…