I wrote a long post filling in some gaps for that example. I didn't send it.
And I can't remember now whether I mentioned this before on some other post. Buidling ships is a giant math and physics problem. In turn those practical engineering problems had a lot to do with creation of scientific knowledge. Now days that would be even more so, when you think about the communications and navigation systems and their high tech computer systems, i.e. lots of work for programmers and systems engineers, big boom in the tech sector etc.
CG