"Boater" wrote in message
...



Technology and innovation

* David Bushnell (ca. 1776), inventor of the screw propeller,
submarine, naval mine, and time bomb.


Being boating related, I thought I'd mention that there are several claims
to have "invented" the screw propeller.

Bushnell isn't even mentioned at this site:

http://www.irvineayrshire.org/propeller.htm


Eisboch (Ho, ho, ho!)