FUNNY MONEY | Indonesian |  Uang Lucu
Channel: Arvind Gupta
Date: 14/07/2015

For this very graphic demonstration all you need is an old aluminum hanger and a coin. Pull the hanger by its hook and the middle point of its base and bend it into a diamond shape. Then upturn it to make the hook hang down. Now gently perch the centre a heavy coin on the aluminum hook. Remember that this is not a magic trick. There is no super glue or magnet. 
Hang the whole hanger from your index finger. First rock the hanger gently and then swing it fast. You can gently make your finger vertical. The coin will be perched on the hook because of the force of rotation. This is how our earth spins around the sun and does not fall into it. You can keep spinning it for a while and then once again make your finger horizontal. Finally you can bring the hanger to a stop. And lo and behold the coin is still perched on the hook. And you can drop it. This is a very good demonstration of Centrifugal Force. 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