A Welder from East Champaran, Bihar Innovates to reduce Carbon emission and Sound pollution. The Innovator runs welding shop and uses Diesel Engine based Generator for operating welding machine. The generator used by the innovator emitted a lot of flue gases and also produced unwanted noise, the noise used to create problem to kids studying in School near by his shop. To solve this problem, the innovator retrofitted a cylindrical container to the exhaust pipe of the engine. The specific arrangement of different types of fins in the cylinder filters out the particulates and allows...