the Public Broadcasting Service
the WGBH Educational Foundation
Visit Shapes Lab, from the PBS Building Big Series to learn how the shape of a structure affects its strength. Don't miss the activity where you load a rectangle, an arch, and a triangle with various weights until they fail. You'll also find information about building materials.
%0 Electronic Source %D 2001 %T Building Big: Shapes Lab %I Public Broadcasting Service %V 2015 %N 1 April 2015 %9 application/flash %U http://www.pbs.org/wgbh/buildingbig/lab/shapes.html
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