His modification of the Sterling engine can produce purified potable water and even generate electricity as a byproduct .
Dean Kamen proudly states that his invention is on the verge of making a mighty contribution to the 10 billion people that inhabit this planet .
Dean Kamen 's modification of the Sterling engine can produce purified potable water and even generate electricity as a byproduct .
Dean Kamen proudly states that his invention is on the verge of making a mighty contribution to the 10 billion people that inhabit this planet .