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Women in U.S. Government

  Sandra Day O'Connor Biographies ofNotable Women Actresses Adventurers Artists Athletes Businesswomen Comediennes Congresswomen Educators and Scholars Fashion Designers…

Writers

When Dorothy Straight of Washington, D.C. was 4 years old, she wrote a story for her grandmother entitled “How the World Began.” Her parents thought it was good enough to be published. They were…

Cloning 101

Take a look back at the science of cloning, for both therapeutic and reproductive use Dolly the SheepAP…

Chemistry: Dalton's Law of Partial Pressures

Dalton's Law of Partial PressuresChemistryGas LawsBoyle's Law: Why Compressed Gas Is SmallCharles's Law: The Incredible Imploding CanGay-Lussac's Law: Spray Paint + Campfire = Bad NewsThe Combined…

Chemistry: Heterogeneous Equilibria

Heterogeneous EquilibriaChemistrySolution Chemistry/emical EquilibriaWhat Is an Equilibrium?Equilibrium ConstantsHeterogeneous EquilibriaDisturbing Equilibria: Le Chtelier's Principle All of the…

Chemistry: Properties of Covalent Compounds

Properties of Covalent CompoundsChemistryGetting to Know Covalent CompoundsWhat Are Covalent Compounds?Formation of Multiple Covalent BondsProperties of Covalent CompoundsWhat's in a Name? Covalent…

Chemistry: Why Are Solids Solid?

Why Are Solids Solid?ChemistrySolidsWhat Are Solids?Why Are Solids Solid?Types of Solids Until you started studying chemistry, you probably took it for granted that it's a bad idea to hit yourself…

Timeline: Gays in Pop Culture

Here are some key breakthroughs for gays in television, film, media, and theater. by Jennie Wood Giant footage Rock Hudson…