| http://www.w3.org/ns/prov#value | - Students portray historical characters such as Einstein, Aristotle, Galileo, Newton and Igor as they explain and illustrate the theory of gravity to a large crowd of students.Out in Utah, the Roy Junior High School has homemade trebuchets to launch projectile pumpkins.As pumpkins were loaded into homemade trebuchets, launched into the air, and obliterated by the earth, students shivered in their V
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