Delhi boy builds mini-cooler using idea from Doraemon
A 13-year-old boy from ragpicker's family in Delhi's Bhalswa reportedly built a portable, battery-operated mini-cooler from waste in 3 months, using an idea he got while watching Doraemon on television. "Doraemon created a fan using discarded material and it blew away villains," the boy said. He built the mini-cooler by attaching cardboard, wooden sticks, and plastic-bottles to a motor.