Squeeze and Spin | Telugu |
Channel: Arvind Gupta
Date: 28/01/2015

In this splendid toy you repeatedly press a plastic bottle and a fan spins round and round. Hence the name Squeeze and Spin. You will a plastic bottle with a nozzle, straws, tape etc. In India such a bottle is used to store coconut oil. It has got a nozzle on the top and if you squeeze it a stream of air comes out and sways the paper. Make a small hole near on end of a plastic straw. Then take a 10-cm long fat plastic straw and fold it the middle to locate its center. Punch a hole in the center. Then tape and seal both ends of the straw. We have used black tape for its visibility. Trim the extra bits of tape. Then cut a small triangle on the top right hand corner. You will see a small hole. Similarly make a small hole in the bottom left corner. Both these holes will be diametrically opposite. Now insert the plastic straw with the hole in this spinner. Press fit a Styrofoam ball at the end of the straw. Now when you blow from the other end air will come at right angles through the small hole. Place the fat straw right on top of the hole. Then slide a foam piece in the straw so that it is just behind the spinner. The foam will act like a stopper and prevent the spinner from falling down. The fat straw must spin smoothly on the white straw. On blowing through the other end the spinner will rotate very smoothly. Now mount the spinner vertically by inserting the end of the white straw in the nozzle of the plastic bottle. On squeezing and releasing the bottle the spinner will rotate fast and make a very pleasant sound. This work was supported by IUCAA and Tata Trust. This film was made by Ashok Rupner 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's Children’s Science Centre, since inception. To know more about other initiatives of Tata Trusts, please visit www.tatatrusts.org