| Change the World Challenge Winning submissions–Fall 2008 |
The Ecolizer Exhaust System Brain Saver Water as a Fuel Source This student has identified many new and valuable applications of an existing, older technology. His idea uses a far more efficient method of splitting water into its component gases to provide an oxyhydrogen fuel gas for use in internal combustion engines, welding torches, cooking stoves, etc. Water from almost any source can be used. inSUN Roofs of concrete houses in the tropics can reach temperatures of 180°F, making it impossible for air conditioners to remove the incoming heat. Based on engineering fundamentals, a specialized, yet easy-to-install, insulation system, devised by these students, deflects solar radiation from these roofs. The CO2 emission reduction from every device installed is equivalent to removing one car from the road. In Puerto Rico alone, the market has over one million potential customers, with revenues of over $250M. Solar Powered Autonomous Landmine Detector Landmines are directly responsible for over 24,000 deaths per year. In addition, landmines block civilians from resources, including water and fertile land, contributing to global hunger and poverty. These students developed an inexpensive method of using a swarm of autonomous, solar-powered robots to eliminate the human risk involved in land mine detection and greatly expedite the land mine removal process across the globe. High-Tech Cane for the Visually Impaired This student has designed a high-tech cane equipped with GPS so users can vocally input addresses of interest and the cane will lead them to the location. It is also equipped with an ultrasonic ranger to sense objects all around the user and comes equipped with a panic button in case the user is in distress. 21st Century Fire Suppression System Conventional sprinkler systems have an extremely high installation cost and cause excessive amounts of damage. In addition, conventional sprinkler systems typically cannot directly detect fire, monitor changes, or control the system's response. The technology identified by these students provides an autonomous, feasible solution to help solve all these problems. A New Approach to Ultrasonic Clothes Washing Clothes-washing represents nearly a quarter of the United States water usage and a fifth of all energy use. In the U.S. alone, this equates to more than one hundred billion gallons of water per day, and two hundred billion kilowatt hours of electricity. |