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An arch bridge works by taking the load placed on it and pushing it
out to the edge of a valley. This “pushing” action is called
compression. In the picture below, the bridge is supporting
the load of two bunnies, pushing against two books.
Unfortunately if there are no ends to push against, the bridge will
fall. In the picture below, if one of the books is removed, the
bridge collapses.
Note:
No real bunnies were harmed during the filming of this scene!
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