香港地下天文台
$58.00
玻璃天氣預報瓶(氣壓瓶)是一個有趣及美觀的室內擺設,利用大氣壓力變化的原理,天氣轉差時,氣壓下降,玻璃管的水位會上升;天氣轉好時,氣壓上升,玻璃管的水位會下降。透過觀察玻璃管的水位變化從而預測天氣。
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