Dr. Christian J. Lambertsen developed US Navy frogmen's rebreathers in the early 1940s for underwater warfare. It was the first device to be called SCUBA. The US Navy considers him to be "the father of the Frogmen". He did much diving development work, which is described at length here. The United States Navy (USN) is the branch of the United States armed forces responsible for naval operations. ... For the Wizard of Oz series character, see Frogman (Oz character). ... Inspiration closed circuit diving rebreather A rebreather is a type of breathing set that provides a breathing gas containing oxygen and recycles exhaled gas. ... SCUBA is an acronym for Self-Contained Underwater Breathing Apparatus. ...

He currently works at the University of Pennsylvania. The University of Pennsylvania (Penn is the moniker used by the university itself [2]) is a private, nonsectarian research university located in Philadelphia, Pennsylvania. ...

External links

• http://www.nae.edu/nae/naepub.nsf/Members+By+UNID/792C1DB1153A006585256FFC004A4DDD?opendocument
• http://www.uphs.upenn.edu/ifem/IFEM%20Brochure%202004/Brochure2004-LAMBERTSEN.pdf#search=%22christian%20lambertsen%22
• http://www.therebreathersite.nl/Zuurstofrebreathers/USA/lambertsen.htm (a long biography about him, and about the rebreather that he designed)
• http://www.therebreathersite.nl/Zuurstofrebreathers/USA/photos_lambertsen.htm Images of his rebreather