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Empty Kipp's apparatus, with stopcock and fermentation lock.
Empty Kipp's apparatus, with stopcock and fermentation lock.
Drawing of a filled Kipp's apparatus.
Drawing of a filled Kipp's apparatus.
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A gas regulator attached to a nitrogen cylinder
A gas regulator attached to a nitrogen cylinder
Blowing air at a spark
Blowing air at a spark
Bubbles of carbon dioxide form a froth on fermenting liquids such as beer.
Bubbles of carbon dioxide form a froth on fermenting liquids such as beer.
Döbereiner's hydrogen lamp
Döbereiner's hydrogen lamp