Modified hand-cart with steering
The idea is to incorporate easy steering mechanism and brakes to make turning hand carts easy and arrest slide on inclines.
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Reduction of AC energy wastage through clamp meter
Clamp meter connected to an AC monitors the current flow and indicates usage (range) through green, orange and red colour codes. The four friends had learnt about capacitor and its use in many electronic appliances in their physics class. Ageing of these, leads to lesser efficiency of the appliance.
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Hilly terrain cart
Three equidistant wheels on a single axle attached to two similar sets in different planes, allowing flexibility in movement with respect to each other.
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Low cost Modern printer
A dot matrix printer modified at a low cost to work as a Mordern printer
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