Newton's CD Disc | Assamese
Channel: Arvind Gupta
Date: 2015-06-26

Make a very nice Newton’s Disc using an old CD, marble, glue, and card sheet and sketch pens. Take a circular card with a hole in the middle and paint all the seven colors of the rainbow. The colors should be interspersed with white colors. Take an old CD and apply rubber adhesive on its top surface. Stick color card on CD. Press and smoothen it. Apply rubber glue on the circular hole in the CD. Then place the marble in the hole. Apply more glue and wait for it to dry. Now the CD is ready to spin. Hold the marble and spin the CD on a smooth surface. It will keep spinning for a very long time. All the seven colors will merge and you will see a grayish white. It has all the attributes of a great top – a low centre of gravity and a large moment of inertia. 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