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At the museum the curator rolled out a Magdeburg hemisphere to demonstrate how atmospheric pressure could keep two copper halves firmly sealed.
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At the museum the curator rolled out a Magdeburg hemisphere to demonstrate how atmospheric pressure could keep two copper halves firmly sealed.
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Related words
Magdeburg hemisphere
Noun
historical
Japanese Meaning
歴史的な実験装置の一つ。大きな銅製の半球が一対になっており、縁が互いに噛み合う形状をしている。これらはグリースで密閉された状態で空気を抜くことにより内部が真空になり、大気圧によって互いに押し合って引き離すことができなくなる性質を示す。
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