FAN SPRINKLER | Urdu
Channel: Arvind Gupta
Date: 05/10/2016

The Fan Sprinkler is a very exciting science project. For making you will need. For making it you will need a plastic straw, cycle spoke with nut, 1-litre plastic bottle and some other ordinary things. Stick tape around the bottle and cut a circular section of the bottle. Cut 20 petals in this plastic bowl. These petals will become blades of the propeller fan. Place the petals on the table and press them down to separate them. Then take each petal and give it a twist. Each petal will acquire a curvature and will become a fan blade. 

Take a cycle spoke and remove its brass nut. Make a small hole in the bottle lid and press fit this nut. Take a plastic straw and poke the cycle spoke through its centre. Make two half-cuts in the straw about 2-cm from the spoke. Bend these arms to make a triangle and tape them together with the spoke. This triangular pump will sprinkle water.

Take a PVC pipe and drill a small hole. Place the spoke in the PVC pipe and then put a bead which will act like a smooth washer. Finally tighten the spoke threads in the nut fixed to the lid. 

The Sprinkler is almost ready. If you blow on the propeller it will rotate and so will the triangular pump. Place the triangle in a mug of water and keep the whole assembly under the ceiling fan. As the fan rotates the bottle propeller, the triangular fan whirls very fast and sprinkles water all around. This is an excellent outdoor experiment to do on a hot summer day!

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

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