CD HOVERCRAFT | Urdu
Channel: Arvind Gupta
Date: 2016-06-28

You can make a very lovely Hovercraft using a throwaway old CD. You will need an old sketch pen, balloon, rubber glue and a rubber disk. First, remove the tip, cartridge and the end cap from an old sketch pen. With a long needle make a hole in the sketch pen cap. You can see the front view and then the back view. Push this cap in a rubber disk. Push the cap slightly inside. Take an old computer CD and apply some rubber glue in its central part near the hole. Let the glue dry and then stick the rubber disk right in the centre. You can see the back view of the hovercraft.
Now attach a balloon to the back end of the sketch pen with the help of a rubber band. You can fit the pen in its cap which is fixed to the CD. Now inflate the balloon and fix the pen on its cap. Place the hovercraft on a smooth surface.
Air will escape from the bottom hole and the CD will skim smoothly on the cushion of air. This is the principle of the Hovercraft. Once the balloon gets deflated the Hovercraft stops working. You can also place the Hovercraft on a smooth floor and then give it a little push. The Hovercraft will gently travel from one end to the other. 

This work is supported by IUCAA (www.iucaa.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

Dubbed in Urdu by Ishrat Shaik from Pratham's Science Learning Program 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