Also called the Archimedes screw or Archimedes snail, the water screw is a device to lift water for irrigation. It was based on a helix, which revolved inside a tube and carried water up on the helical blades. A handle at the high end of the screw was turned to draw up water from t...
or you risk wasting your time. For example, you don't want to write a letter to the professor whose class you failed if the dean is the only one who makes decisions about lifting academic probation. Review the school's student handbook to learn who reviews these petitions and when they r...
March contains a number of offbeat holidays and observances, such as Sock Monkey Day, Earmuffs Day and Dress in Blue Day. Turn the zany Make Up Your Own Holiday Day, observed March 26, into a theme for a weeklong creative writing assignment. Ask students to invent their own crazy holiday,...
Mysterious. Absurd. Maybe threatening. Shoes on power lines have been rumored to mean anything from a gang sign for owned turf to helpful objects meant to warn low-flying aircraft pilots of power lines nearby. Whatever the reason, shoes end up on power lines in neighborhoods across America. E...
Before you start writing your petition letter, determine what the school policies are, or you risk wasting your time. For example, you don't want to write a letter to the professor whose class you failed if the dean is the only one who makes decisions about lifting academic probation. Revi...