I want to know the answer to the following question:
The differential analyzer by H.L. Hazen and Vannevar Bush was first being built in what year?
All the background I'm provided with is that "The art of mechanical analog computing reached its zenith with the differential analyzer, built by H. L. Hazen and Vannevar Bush at MIT starting in 1927.". Is that enough to answer the question?
Answer: yes