Konbit Collecting the skills of residents, allowing non-governmental organizations to find and employ them. Wear an Eye Computer vision technology to aid blind or visually impaired pedestrians. Parabolic Power Solar concentrator device that heats, a working fluid for energy transfer to multiple, user-specified applications The Grease Project An inexpensive, low-tech conversion method that allows diesel vehicles to run on waste vegetable oil. Heat Source Textiles HeatSource textiles are incorporated into existing clothing or bedrolls to deliver heat. These textiles are fully reusable and rely on solar energy to charge. Wii-Habilitation A severe disparity exists between the quality of healthcare services offered in first world countries compared with those offered in developing regions. PieceMeal Vendors Street food vendors sell $88.4 billion of food annually. Though the fruits of their labor are irresistible, vendors face risks like unpredictable traffic and spotty sanitary conditions. VAC-CAST Prosthetics There are over 25,000 new amputees annually in India as a result of accidents and disease. PerfectSight Over 153 million people around the world suffer from uncorrected refractive vision problems and 87% of them - 133.11 million people - reside in developing nations. My City, My Future Children in the favelas of Rio de Janeiro are the most vulnerable community of the city.