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Geometry: The AAS Theorem

The AAS TheoremGeometryCongruent TrianglesCPOCTACThe Big FiveThe SAS PostulateThe ASA PostulateThe AAS TheoremProving Segments and Angles Are CongruentProving Lines Are Parallel You've accepted…

1904 Olympics Swimming Medalists

Event   Time 50yd Free Zoltán Halmay, HUN 28.0   Scott Leary, USA 28.6   Charles Daniels, USA   100yd Free Zoltán Halmay, HUN 1:02.8   Charles Daniels,…

1977 Grammy Awards

Record of the Year“Hotel California,” EaglesAlbum of the YearRumours, Fleetwood Mac (Warner Bros.)Song of the Year (tie)“Love Theme From A Star Is Born” (Evergreen), Barbra Streisand and Paul…

Classical Mythology: The Cunning Rogue: Sisyphus

The Cunning Rogue: SisyphusClassical MythologyWhat the Hell? Adventures in the UnderworldHades Takes a Wife: PersephoneThe Cunning Rogue: SisyphusThe Not-So-Heavenly Host: TantalusUndying Love:…

Chemistry: Equilibrium Constants

Equilibrium ConstantsChemistrySolution Chemistry/emical EquilibriaWhat Is an Equilibrium?Equilibrium ConstantsHeterogeneous EquilibriaDisturbing Equilibria: Le Chtelier's Principle All equilibria…

Writing Well: Stamp of Approval

Stamp of ApprovalWriting WellLetter PerfectStamp of ApprovalPeople Who Like People: Social NotesLetters of Opinion Because personal letters express your own ideas, you generally have a far wider…

John DeWitt I

John DeWitt I22 October 1787by John DeWittTo the Free Citizens of the Commonwealth of Massachusetts.Whoever attentively examines the history of America, and compares it with that of other…

mummy

(Encyclopedia) mummy, dead human or animal body preserved by embalming or by unusual natural conditions. As a rule mummies are from ancient times. The word is of Arabic derivation and refers…

Chemistry: The pH Scale

The pH ScaleChemistryAcids and BasesWhat Are Acids and Bases?Properties of Acids and BasesThe pH ScaleTitrationsBuffers As you might imagine, it's useful to be able to measure the acidity of…