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The Panama Canal

One of the greatest engineering achievements in history marks its 100th anniversary by John Gettings   Canal Facts Opened on 8/15/14 Cost $336,650,000 36 to 38 ships pass…

Punctuation: Quotation Marks: Quote/Unquote

Quotation Marks: Quote/UnquotePunctuationPunctuation MattersPeriod, Question Mark, Exclamation Mark: The End of the LineThe Comma: A Major PlayerThe Semicolon: Love Child of the Comma and the…

Geometry: Isometries

IsometriesGeometryTransformationsIsometriesDilationsSymmetry The word isometry is used to describe the process of moving a geometric object from one place to another without changing its size or…

DK Science: Refraction

PUZZLE FOR THE EYEREFRACTION IN HEAT HAZEMIRAGEFIND OUT MORELight rays usually travel in straight lines, but when they pass from one material to another they can be forced to bend (change…

DK Science & Technology: Electromagnetism

HOW DOES ELECTRICITY CREATE MAGNETISM? HOW DOES MAGNETISM PRODUCE ELECTRICITY? WHAT DO GENERATORS DO? ELECTRIC MOTORSFIND OUT MOREAn electric current produces magnetism, and a magnet can produce an…

Patriotic Music for Independence Day

The best songs for your 4th of July picnic by Mark Zurlo Related Links Fourth of July by the Numbers Facts on Fireworks History of Fourth of July Celebrations American Flag Quiz…

Six Nations Make Their Winter Olympic Debut

East Timor, Malta, Paraguay, Togo, Tonga and Zimbabwe compete in the Winter Olympics for the first time.   Related Links 2014 Winter Olympics Memorable Olympic Moments Birth of…