3.85 billion years ago: Life on Earth begins.10,000 years ago: More than 15 billion acres of land are covered with forest.1750–1850: The Industrial Revolution. Fossil fuels used in factories.1957–…
On (and Under) the Water
Most people think Robert Fulton invented the steamboat. But in fact, John Fitch, an American, built and operated a steamboat on the Delaware River in 1787, but his…
Tornado, flood, fire, terror, emergency: find the top ten ways to prepare for disaster. Then compare your readiness with the rest of America. On hand emergency items Use…
CENTRE OF GRAVITYFALLING FORCEMASSFIND OUT MOREGravity is the force that makes things fall to the ground on Earth and holds the planets in their orbits (paths) around the Sun. The force of…
EMERGENCY SERVICESMOBILE PHONESFIND OUT MOREMobile communications allows direct radio contact with people on the move, connecting them immediately, even in an emergency. Radio was originally…
BCS National Championship Game—Florida 41, Ohio State 14 Rose Bowl—Southern California 32, Michigan 18Orange Bowl—Louisville 24, Wake Forest 13Sugar Bowl— Louisiana State 41, Notre Dame 14Fiesta…
