There is no mechanical power device on the glider. The reason why it can fly for a long distance in the sky is purely by using the buoyancy and flow of the air. The wind principle is basically the same as that of a sailboat floating on the water, but it is more complicated and… Continue reading Fang Wanyi and Feng Bai couldnt help but look at Yueqinghe with admiration before and Yueqinghe persisted Having to pay for everything by yourself this