And it’s all because of static electricity. Static electricity is ... And like charges will repel. When I rub this balloon on a jumper, it becomes negatively charged. Holding it near this ...
Rub the balloon on your shirt or hair to put a charge on the balloon. Hold the circle of plastic up high and put the balloon underneath it. Let the plastic go and see if you can make it hover using ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果