Cool Science - 01/24/2011

By WISE Web Admin

January 24, 2011 Updated Jan 17, 2011 at 1:50 PM EDT

FORT WAYNE, Ind. (Indiana's NewsCenter) - In this week's episode of Cool Science Monday, Martin Fisher from Science Central talks about the annual Bridge Building Competition on 2/19.

Middle school and high school kids build bridges from popsicle sticks. Judges from the IPFW Engineering Department will place the bridges in a machine and apply pressure until the bridge breaks.

A bridge can be made to be stronger by adding triangular-shaped sections called trusses.

Martin also shows off another type of bridge, with a curved shape called a catenary arch. The block at the top, called the keystone, supports the left and right side of the bridge and holds the shape. If it's removed, the bridge falls.

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