SIMPLE PUMP | Bengali
Channel: Arvind Gupta
Date: 2015-11-20

Make a very simple using just a throwaway plastic bottle and a tape.
With a scissors make an 8-mm hole in the lid of the bottle.
Make another hole near the base of the bottle.
Take 3-cm long sticky tape.
Stick 1-cm of this tape on itself.
The doubled part will have no glue.
Cut the tape in half along the length.
Stick one piece on the base hole so that the no-glue part comes on the hole.
Stick the other piece similarly inside the lid.
Both these tapes will make “VALVES” which can open and close.
These valves are like traffic lights ensuring flow in one-direction.
Place the bottle in a jar of water and squeeze.
With every squeeze more and more water will rise in the bottle.
Once on bottle in full on squeezing large quantities of water will gush out.
You can see the top valve open and close.
So recycle an old bottle to make this Simple Pump.

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

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