What was John Rennie the Elder's contribution to the field of engineering?
Developing new mathematical formulas
Inventing a new type of engine
Designing bridges, canals, docks, and warehouses
Creating a new type of steel
Answer
John Rennie the Elder's main contribution to the field of engineering was designing numerous bridges, canals, docks, and warehouses. He was also a pioneer in the use of structural cast-iron, which revolutionized the construction of engineering projects.
John Rennie Trivia Bonanza: Test Your John Rennie Knowledge