If you are curious about the blow-out preventers that are getting the blame for the BP Gulf oil spill, Wikipedia has a short page on their principles of operation: http://en.wikipedia.org/wiki/Blowout_preventer Also, M.I.T.'s Technology Review ...
If you are curious about the blow-out preventers that are getting the blame for the BP Gulf oil spill, Wikipedia has a short page on their principles of operation:
Leland was Editor-in-Chief of Machine Design. He has 34 years of Service and holds a B.S. Engineering from the University of Michigan, a B.S. Electrical Engineering from the University of Michigan;, and a MBA from Cleveland State University. Prior to joining Penton, Lee worked as a Communications design engineer for the U.S. Government.
