"Typically we design bridges for a 75-year life," he said.
"If you build a bridge and it falls down, you are not going to be permitted to design bridges ever again," Endy said.
Besides learning school routines and rules, the students are asked to design bridges — and then weigh them down, in a test of the bridges' strength.
Visitors can also experiment with knot tying, jigsaw puzzles and number games in "BrainTeaser" and design bridges on a computer in "Discover E".
While architects can design bridges, and artists – whether mural-makers or Russian conceptualists – can attract tourists, they won't bring Derry's industry back.
The detail category 100 is proposed to design bridge K-joints loaded in tension or compression.
Similarly, engineers design bridges to carry weight in excess of what's permitted on the bridge itself.
Engineers will always be called upon to design bridges, map out transportation and water-delivery systems, invent new machines and create products people need or simply enjoy.
PRODUCTION DESIGN Bridge of Spies (Adam Stockhausen, Rena DeAngelo) Carol Judyy Becker, Heather Loeffler Mad Maxx: Fury Road (Colin Gibson, Lisa Thompson) The Martian (Arthur Max, Celia Bobak) Star Wars: The Force Awakens (Rick Carter, Darren Gilford, Lee Sandales).
The ball's design was created by British independent brand specialist company Design Bridge, and influenced by the waters, in the Netherlands and Belgium.
