Used along with a catapult assembled from a fork and rubber band included in the air track set (1021090), the launch apparatus imparts uniform, reproducible launch momentum to a glider which is dependent on the tension in the rubber band ...
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置于磁化板上演示几何光学实验。光从1到5个射线孔处发射出,通过可旋转的面镜发生偏转,这样来自投影的光是平行的,或是发散的,或是会聚的;它用于反射、衍射实验和透镜实验。1到2个发散光射线可以在多射线投影仪的反向边获得,它们的合成光线可通过面镜调节。
灯:12V,55W
连接线:1.5m长,带有4毫米的插孔
规格:150×200×50 mm
重:0.9 kg
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