Invented by Hermann Sprengel in 1865, this pump produced the highest vacuum achievable at the time, about 1 mPa. Falling Mercury traps air and pushes it out, creating a vacuum.William Crookes and Thomas Edison used this back in the day.
pump
vacuum
pressure
mercury
history
Comments
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Part 2 here id:2794847
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Basically yes. Also update: Added SLCN version
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It's like a water aspirator... but with mercury. +1
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Yay finally someone who even knows what this is x'D Thanks.
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yay finally some actual science +1
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Reasons for downvotes?