Sixth Grade Science News: November 2011; "Physics is essentially an intuitive and concrete science. Mathematics is only a means for expressing the laws that govern phenomena." - Albert Einstein; Quote Source: http://en.wikiquote.org/wiki/Albert_Einstein#Albert_Einstein:_A_guide_for_the_perplexed_.281979.29 ; From Lettre à Maurice Solvine, by A. Einstein (Gauthier-Villars: Paris 1956).
Archimedes once said “Give me a place to stand, and I shall move the Earth.” While the idea of a person moving such a huge mass on their own might sound impossible, chances are you’ve seen this idea in action at your local playground. Andy Peterson and Zack Patterson use the seesaw to illustrate the amazing implications and uses of the lever.