Engineering-Rich Metros

A list that Dayton makes that isn't tremendously depressing:

America has always been a nation of tinkerers. Our Founding Fathers, notes author Alec Foege, were innovators in areas ranging from agriculture (George Washington, Thomas Jefferson) and electricity (Benjamin Franklin) to the swivel chair (Jefferson).
Engineering advances drove America’s quest for industrial supremacy in the 19th century, many of them borrowed (sometimes illegally) from the then very resourceful British Isles. By the early 19th century, the U.S. was producing its own major inventions, including the steamboat and cotton gin. By the end of that century, the U.S. was clearly on the way to industrial preeminence. The growth of engineering schools — MIT, the Case Institute, Stevens Institute of Technology, as well as departments at the great land grant universities — generated a steady supply of engineers. For much of the last 70 years, America, has been the world’s leading center of engineering excellence, dominating markets from steel and cars to energy and aerospace....Detroit’s bankruptcy has shed a bad light on rustbelt centers, but in reality the industrial Midwest has been on something of a roll in recent years, with many states, from Wisconsin and Ohio to Iowa, boasting lower unemployment than the national average. One key element has been the increasingly innovative nature of U.S. manufacturing, notably in the auto industry. Little-recognized Dayton, which ranks fourth, has attracted major investment for advanced manufacturing in autos and aerospace.

The write-up of San Jose mentions early research investment by the defense department and NASA.  The Houston part mentions the energy industry, but doesn't mention the massive NASA presence for most of the last 50 years.  Likewise, while Dayton has had a ton of engineers working in the auto industry and machine shops, Wright-Patterson has been the major driver for the last 40 years.  Apparently, government plays a pretty big part in employment of engineers.