Segway inventor Dean Kamen wants to tackle the world 's fresh water shortage . The billionaire entrepreneur is working with a team of scientists and engineers from MIT, Harvard University, Stanford University, and other institutions on an ambitious project that aims to create a new generation of sustainable energy The machine is designed to purify water in remote villages of developing nations . But assembly costs remain too high for the machine to be mass produced .
Segway inventor Dean Kamen wants to tackle the world 's fresh water shortage . Kamen has designed a portable water purifying device called a Slingshot . The machine is designed to purify water in remote villages of developing nations . But assembly costs remain too high for the machine to be mass produced .