How to make Tumblewing (Urdu Video)
How to make Tumblewing (Urdu Video) Tumblewing A tumblewing is a paper airplane which rotates about a horizonal axis. Its mode of flight is more…
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Make your own very simple Clip motor "DC Motor"
Make your own very simple Clip motor "DC Motor" Linear motor movement can be changed into rotation. For its construction you need following material. Materials…