TRANSPARENCY BUBBLE | Urdu
Channel: Arvind Gupta
Date: 08/01/2017

This transparency bubble almost looks like a giant soap bubble in spin. For this you need an old transparency, two aluminum candle holders and a spoke. Cut 20 strips from the transparency which are 20-cm long and 2-cm wide. Take a throwaway candle cup and make 8 cuts along its rim. You will need two cups like this. Make a hole in their center. Insert a stiff straw in the center of the cups. The straw will act like a bush bearing. Now place one end of the transparency strip, place it on one aluminum lug and tape it. Stick all 8 strips with color tape – which will make it look beautiful. Stick the other end of the strips to the second cup. Now weave a bicycle spoke through the two straw bearings. Now twist each aluminum lug to make it into a blade. This will make a very efficient propeller. On placing under the ceiling fan you will find that the whole assembly spins beautifully like a giant soap bubble. 

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

This work is supported by IUCAA (www.iucaa.in) and TATA Trust (http://www.tatatrusts.org/) and (www.tata.com/aboutus/sub_index/Tata-trusts)

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

Credits:,Ashok Rupner, Shivaji Mane, Jyoti Hiremath, Arvind Gupta, Vidula Mhaiskar