Go, No-Go Matchbox | Bhojpuri | Fun with Friction
Channel: Arvind Gupta
Date: 2015-02-11

This wonderful toy can be made in just a few minutes. You will need an empty matchbox, a matchstick, thread, a coin and some glue. Remove the drawer from the matchbox and make 4-cross holes in it with a long needle. Then apply glue to the base of the drawer and stick a coin to it. The coin will make the drawer heavy. Take a matchstick and taper both its ends and fix it across in the two holes along the width of the drawer. Weave a 1-meter long thread in the two holes along the length of the drawer. Tie loops on both ends of the thread. Stick a BLACK SPIDER on the backside of the matchbox drawer. 
The toy is ready to play. Hold the thread tight and the drawer up. As you loosen the thread a little the drawer slides down. On tightening the thread it brakes. 
When the thread is loose, the spider SLIDES; when the thread is tight the spider BRAKES. This is the principle behind this GO, NO-GO MATCHBOX. 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