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Get a feel for hydraulic jack. Using two new plastic syringes (minus the needles) and a few ice-cream sticks you can make a Jack to lift a load. The syringes transit force through the water medium which is not compressible (at least for the purposes of this toy).
This device demonstrates the concept of Mechanical advantage where you can lift heavy loads which little effort. Applying small force over larger distances you lift heavy loads for smaller distance.
Film/Science support: Arvind Gupta, Ashok Rupner, Dr Vidula Mhaiskar, Manish Jain 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