How did technology innovations lead to economic growth in the United States

The author describes the importance of immigration reform to boost immigration of scientists and engineers from other countries to the United States. The author mentions that the United States grants too few work visas to foreign scientists. We can foster innovation by giving more foreign scientists and engineers extended work visas. This policy would mean the United States could bring the best scientists to work on US projects right now. However, one downside is that this policy doesn't address the lack of American students studying to be scientists and engineers.

Answer: It lead to different forms of transportation being built

ex. Steamboat