论文部分内容阅读
三、饮水鸟的原理其实,到目前为止,人们还没有发明真正的永动机。我们制作的饮水鸟之所以能重复饮水动作是因为它利用了杠杆平衡、毛细现象等一些物理原理。我们制作的这款饮水鸟的原理是:饮水鸟“鸟嘴”里的纱布浸到水里,由于毛细现象,纱布完全湿润,水就引上来,慢慢地越过头部的拐角。“鸟肚子”里渐渐充水,加重了后部的重量,最终破坏了平衡,于是“鸟头”抬起,水从矿泉水瓶的底部泻下来。矿泉水瓶底部变轻,慢慢调节它的
Third, the principle of drinking water birds In fact, so far, people have not invented the real perpetual motion. The drinking waterbirds we make are capable of repeating drinking movements because they utilize some of the physical principles of leverage and capillary phenomena. The principle of the drinking waterbird we made is: waterbirds “beak ” in the gauze soaked in water, due to capillary phenomenon, the gauze is completely wet, the water leads up and slowly over the corner of the head. “Bird belly ” gradually filled with water, increasing the weight of the rear, eventually undermining the balance, so “bird’s head ” lifted, water from the bottom of the water bottle to spill. Bottom of mineral water bottle lighter, slowly adjust it