Kolkata, Jan 7 (IANS) Energy efficient chulhas (stoves), alternative fuel sources, refrigerators that run without electricity and green buildings -- young innovators at the Children's Science Congress showcased an environment-friendly India Monday.
Themed 'Energy: Explore, Harness, Conserve', the Children's Science Congress brought together 140 budding scientists from all the states to the city Jan 4-6.
"Everyone uses a refrigerator. So we came up with the concept of using ash as a substitute for electric power," 15-year-old Akhilesh Vaishnav from Chhattisgarh told IANS.
"We have designed a chulha (stove) that works on the simple principle of reflection and conduction of heat," said Tagru Tatu from Vivekananda Kendra Vidyalaya, Chimpu, Itanagar, Arunachal Pradesh.
"Decreasing the use of fossil fuels is the need of the hour. In India, bio-diesel is produced from Jatropha but it is not found in abundance. We used oil seeds and some chemicals to get biodiesel," said a student from S.M.V.H.S.S., Poonjar, Kottayam in Kerala.
Children from Andaman and Nicobar Islands showcased their concept of green buildings by using solar power, rain water harvesting and environmental friendly construction materials like bamboo.