"Do not ask what the world needs. Ask what makes you come alive, and go do it. Because what the world needs is people who have come alive." - Howard Thurman

Monday, March 30, 2009

Science 7 - Cantilever bridge videos

Hi Sc 7C and 7P!  Here are some videos I found on YouTube to help illustrate the concept of the cantilever bridge:

Video #1 - a model of a cantilever bridge in motion:



Video #2 - People breaking a cantilever (remember that it is easier to support a load on a cantilever closer to its attached end, a concept that we discovered when Megan and Nicole supported the weight of a backpack on one arm, first close to the shoulder and then closer to the wrist):

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