(Encyclopedia) artificial insemination, technique involving the artificial injection of sperm-containing semen from a male into a female to cause pregnancy. Artificial insemination is often used in…
WHAT IS MECHANICAL ADVANTAGE? HOW IS A MACHINE’S EFFICIENCY MEASURED? LEVERSPULLEYSINCLINED PLANESGEARSFIND OUT MOREFrom can openers to cranes, machines make work easier. Simple machines include…
Pronouns: Pinch HittersParts of SpeechGrammarNouns: Prime-Time PlayersVerbs: All the Right MovesConjunctions: The Ties That BindPrepositions: Good Things Come in Small PackagesAdjectives: Happy…
—by Eleanor MayfieldSource: The U.S. Food and Drug Administration Once upon a time, we didn't know anything about fat except that it made foods tastier. We cooked our food in lard or shortening. We…
Stoichiometry: Fun to Say, Fun to Do!ChemistryStoichiometryStoichiometry: Fun to Say, Fun to Do!Simple Stoichiometry CalculationsLimiting Reactant ProblemsGas Stoichiometry Before I write another…
The Question: The state of North Carolina is nicknamed âThe Tar Heel State.â Where did this nickname originate? What does it mean? The Answer: The…
The Question:
I was browsing your web site hoping to find a section that would help me with my son's baby book. My son was born in 1997 and I'd like to put some trivia in his book for when he…
Stardust Memories After a seven-year, three-billion-mile expedition through the solar system, NASA’s Stardust spacecraft capsule landed in the Arizona desert on Jan. 15, 2006, with an impressive…
The tangled origins of the October 31 holiday by Shmuel Ross Related Links Halloween GuideHalloween Traditions New! Halloween by the NumbersHalloween Hangman New…
(Encyclopedia) dragon's blood, name for a red resin obtained from a number of different plants. It was held by early Greeks, Romans, and Arabs to have medicinal properties; Dioscorides and other…
