瀏覽次數:492by:心怡藝品
光風車
光風車是由玻璃, 葉片及塑膠上下蓋所組成, 它不需靠任何的電池也不需要插電, 只需放在燈泡下或太陽下, 等幾1到2分鐘後, 其葉片吸收足夠的光熱能後, 玻璃裡面的葉片會慢慢的開始旋轉, 適合觀賞或當教育玩具使用!!
Solar rediometer: It was made of glass, metal, plastic....., Putting it under light bulb or sun, its fans will start to spin without any electric power.
Solar rediometer: It was made of glass, metal, plastic....., Putting it under light bulb or sun, its fans will start to spin without any electric power.
#eductional#toy#sun#光風車#solar#radiometer#mills#太陽#玩具