測試液體浮力
金屬圓柱體，直徑19×45mm
透明塑膠外筒質鏡25×50mm
Bucket and cylinder. Demonstrates that a body submerged in water experiences a bouyant force equal to the weight of it's volume of water.
Consists of a Φ 19mm× 45mm solid brass cylinder in close-fitting plastic bucket.
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