Today we are going to make a simple and light weight stove using only throwaway Coke Cans. A well made stove will burn beautifully as shown here. You will need a couple of Coke Cans, a bottle of Thinner and simple hand tools. First make a marking 3-cm above the bottom end of the can. Then cut along that line. You will make a small cup. Repeat this with the other can too. Make a cup by cutting with an ordinary scissors. Then join both the base cups together back-to-back. Make 16 small holes in the periphery and a slightly bigger hole in the center. The 16 holes on the margin should be very small. You can make them by pressing a push-pin. Now place a 5-rupee coin on the central hole. The stove is almost ready. You will need a fuel called as THINNER – which is readily available in hardware stores. The Thinner is used by painters to make the oil paint thin before applying it on the wall. Pour the fuel in the cup through the hole. Be careful as Thinner is very INFLAMMABLE. DO THIS EXPERIMENT ONLY UNDER ADULT SUPERVISION. Because of the slope the top acts like a funnel and the fuel goes easily. Cover the hole with a 5-rupee coin. This coin acts like the whistle on a pressure cooker. It does not let pressure build inside the tank. Finally add a little fuel in the wider pan. The stove is now ready to burn. Do this with the help of an adult because you will be playing with fire. Carefully, set the fuel to burn. A well made stove will burn with a blue flame like this. The stove will burn for between 8-10 minutes on 10-ml of fuel. You can boil tea water on this stove. While on a camp you can also cook food on it. CAUTION: BE CAREFUL, YOU ARE PLAYING WITH FIRE.
This work is supported by IUCAA (www.iucaa.ernet.in) and TATA Trust (www.tata.com/aboutus/sub_index/Tata-trusts)
Credits:,Ashok Rupner, Manish Jain, Pradnya Pujari, Shivaji Mane, Jyoti Hiremath, Arvind Gupta, Vidula Mhaiskar TATA Trust: Education is one of the key focus areas for Tata Trusts, aiming towards enabling access of quality education to the underprivileged population in India. To facilitate quality in teaching and learning of Science education through workshops, capacity building and resource creation, Tata Trusts have been supporting Muktangan Vigyan Shodhika (MVS), IUCAA"e;s Children’s Science Centre, since inception. To know more about other initiatives of Tata Trusts, please visit www.tatatrusts.org