With the help of a broken plastic slinky you can make a very beautiful spinning toy. Insert two rubber plugs at the ends of a 10-cm long PVC pipe. Poke a wooden skewer through the two plugs. Fold twenty spirals of a broken plastic slinky into a flower and tape them. There will be a hole on the top of this flower. Place the slinky flower on the PVC pipe and glue it in place. Make a propeller from a thick plastic sheet. The blades are lifted up to catch the breeze. Press fit this propeller in the skewer. Place a plastic washer below to reduce friction. Place the skewer inside a stiff plastic straw – which will act as a bush bearing. Hold the toy under a ceiling fan and the slinky will spin fast. You will be able to see very beautiful and gorgeous interference patterns in the spinning slinky.  
<p>This work is supported by IUCAA (www.iucaa.in) and TATA Trust (<a rel="nofollow" class="external free" href="http://www.tatatrusts.org/">http://www.tatatrusts.org/</a>) and (www.tata.com/aboutus/sub_index/Tata-trusts)
</p><p>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
</p><p>Credits:,Ashok Rupner, Shivaji Mane, Jyoti Hiremath, Arvind Gupta, Vidula Mhaiskar
</p>
Dubbed in Punjabi by Delhi Public School, Ludhiana
<a rel="nofollow" class="external text" href="https://www.youtube.com/user/arvindguptatoys">Arvind Gupta</a>
CC BY 3.0
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