HI Atif, thanks for sharing your idea about the E-saver in the science contest. Looks like this is a machine that will process waste materials and garbage and give financial benefits in return. This is a very good idea for countries like Bangladesh where there is no rule for proper trash disposal. It is very common to see people throw trash anytime anywhere in Bangladesh, eg on the road, beside a shop, while walking on the streets, etc. So this is a good idea to at least manage some portion of the waste disposals. Thank you for sharing. By the way, your diagram is really nice with good labels! Keep up the good work! Here is your entry: https://drive.google.com/file/d/1u4biTuv4omKV0Hzl1eH-TEoAbDCZ5t2i/view