小学自然课中的机翼升力实验,有一种方法是“做一个机翼,两端吊起,两绳从架子上的滑轮绕过后配一重物,正好平衡,然后用家用电风扇吹,可看到机翼慢慢升起。”这样做实验要做一个大机翼,还得用电风扇,不太方便。现介绍一个微型机翼升力演示器,它使用方便,容易保存,效果很好。 One of the ways to do wing lift experiments in the nature class of elementary school is to make a wing that is lifted at both ends. After the two ropes are passed around the pulley on the shelf and matched with a heavy object, it is balanced and then blown with a household electric fan See the wings slowly rising. "This experiment to be a big wing, have to use electric fans, not convenient. Now introduce a miniature wing lift demonstrator, it is easy to use, easy to save, the effect is very good.