Insert 9V battery into the snap. As soon as you insert the battery the pulley will start rotating.2. Now slowly move the upper slider towards the rotating pulley. Take the slider near and near to the pulley. See… what happens… you will notice that the rotation of pulley gradually decreases. Here the rotation decreases because the rotating metal plate breaks the magnetic field lines (which creates eddy current) of neodymium magnet as it comes closer to it and the brake is applied. This principle is used practically in maglev train to apply brake very slowly.(In maglev train, brake cannot be applied suddenly.) here, instead of aluminium plate you can also use other metal plate, but it must be non iron only. Because iron plate will quickly attracts the magnet.

• Working Model Project Kit/ Working Experiments. Ideal for Children, School, Learning Project Activity, Understand What, How and Why
• Ignite interest in subject and inculcate a scientific attitude. Motivates out-of-box thinking imagination and inquisitive mind. It channelizes energy of children in a focused direction
• All of Junior Scientist products are unique and handmade. We work by designs and Endeavour to create like products
• Children can use their Creativity and Understand fundamentally
• Principle of Working! Provides joyful and meaningful learning experience. Instils wonder and fascination towards science among young students
• Great Gift, as Prize/award in Schools, Birthday Party and functions. Complete assembly instructions with easy Language and Photographs
• However the very nature of being individually designed by hand gives raw finishing of the projects since it should look that students have created on its own