GLOW WITHOUT FLAME | Urdu
Channel: Arvind Gupta
Date: 2016-10-01

This is truly a golden experiment in chemistry. You will acetone, nichrome wire, a glass rod, some beakers and a burner. First pour acetone in a large beaker. Attach a small sheet of copper to nichrome wire and hang it from a glass rod. Hold the copper under a burner and heat it until it begins to glow. Now place the glass rod on the edge of the beaker so that the copper sheet hangs a little above the acetone. The copper must not touch the acetone. You will be surprised to see that in a little while the copper begins to glow. It shines, scintillates and begins to look great almost golden. This happens because of the acetone fumes coming in contact with the hot copper plate. As the temperature of the copper plate falls the glowing also fades. In the end you lift the glass rod out of the beaker you can see the copper plate become green and tarnished. 

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