Poor mans refrigerator; needs no electricity
Parul Sharma
NEW DELHI: Applying science and technology to suit the needs of rural areas, a student of Indian Institute of Technology-Delhi has designed a 130-litre
Publication Date:
21/04/2009
Parul Sharma
NEW DELHI: Applying science and technology to suit the needs of rural areas, a student of Indian Institute of Technology-Delhi has designed a 130-litre