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power of wind is utilized for street lighting system.
(AGE GROUP 12 TO 17 YEARS).
SIZE APPROX : L: 12" - W: 6" - H: 10".
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Science & Kids Project
simple working model of a hydraulic brake system. The hydraulic brake is an
arrangement of braki..
Useful model which helps to classify magnetic and non-magnetic materials. It
works on the behavior ..