Answer:
The American Revolutionary War helped Rittenhouse to use his skills in military engineering to build weaponry.
Explanation:
David Rittenhouse played a vital role during the American Revolutionary War. Rittenhouse was a member of the American Philosophical Society since 1768. As an expert in making surveying instruments and as a surveyor, he was in demand to survey the lands to define the lands.
After the American Revolutionary War broke, Rittenhouse played important role in making weaponry such as cannon, projectiles, gunpowder, and chains to fortify the harbor.
