ATOMIC ARRAY  | Urdu
Channel: Arvind Gupta
Date: 2016-02-26

This is a simple model to understanding the arrangements of atoms in an atomic lattice. 
For this you will need an old CD/DVD cover case.
Open the cover and remove the CD/DVD and the black plate inside.
Fill this cover with small steel ball bearings used in bicycle pedals. 
Fill three-quarters of the cover with steel balls.
Shut the lid and seal all the four sides of the cover with sticky tape.
This will ensure that the balls will not fall off.
Now you can play with the model. 
Rotate the cover and see the balls stack or pack in different arrangements.
You will see that the arrangement is not always uniform. 
At places there are gaps and fault lines.
At places the atoms are closely packed and snug together.
For seeing the atoms in all their glory keep tapping and turning.
And every time the balls will arrange themselves differently.
This will give a feel for the arrangements of atoms in their lattice.
It is very low cost teaching aids to peek into the small world of atoms.

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 and Naziya Shaikh 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