Fantastic Fountain | Bhojpuri |
Channel: Arvind Gupta
Date: 2014-12-26

This truly is a Fantastic Fountain and also a very graphic science experiment. You will need a flat bottom flask, a cork and a long dropper. Take the one-hole rubber stopper and insert in it a long glass dropper. Pour boiling water in the flat bottom flask. Rinse the flask with this hot water and then pour it out in a cup. The air inside the flask will now become hot and some of the air will also be expelled out. Press fit the cork and dropper assembly in the mouth of the flask. Now invert the flask and dip the stem of the dropper in a glass of colored water. The vacuum inside the flask will suck in the colored water. You can see the color water climbing up the dropper stem. And once it reaches the orifice it gushes out like an amazing fountain. It is a sight to behold. The vacuum inside the flask is sucking in the colored water. 
Instead of rinsing the flask with hot water there is another way. Suck out some of the air in the flask with a rubber tube. Now close the rubber tube and once again dip it in the glass of colored water. Once again water will gush in the flask like a Fantastic Fountain. This work was supported by IUCAA and Tata Trust. This film was made by Ashok Rupner 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