Create a Vacuum at Home: Easy Tips for Making a Partial Vacuum in a Small Box

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Discussion Overview

The discussion revolves around methods for creating a partial vacuum using common household items, specifically within a small rectangular box. Participants explore various techniques and share insights on practical applications and limitations of these methods.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant suggests using an empty bottle as a method to create a vacuum, referencing a helpful video.
  • Another participant proposes condensing steam as an effective way to achieve a vacuum, explaining the process of boiling water in an open container and sealing it to create reduced pressure.
  • This participant also notes that while this method can produce a significant vacuum, it does not provide a continuous vacuum.
  • Additionally, the use of a venturi vacuum pump is mentioned as a means to achieve a small amount of continuous suction, with a reference to its common use in laboratory settings.

Areas of Agreement / Disagreement

Participants present multiple methods for creating a vacuum, with no consensus on a single best approach. The discussion includes both practical techniques and theoretical considerations, indicating a variety of perspectives on the topic.

Contextual Notes

Some methods discussed may depend on specific conditions, such as the type of container used or the availability of certain household items. The effectiveness of each method may vary based on these factors.

albertrichardf
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Hello all,
I was wondering how to create a partial vacuum using common household items. It would be in a small rectangle box which has an opening on top that will be sealed immediately after the vacuum is created. Any ideas would be appreciated. Thanks
 
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Hey Albertichardf,

This is an interesting home project. And it has already been undertaken by many. To begin with, you can use an empty bottle to create vacuum. I found this video which might help you:
 
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Ok thanks for the idea. The video is useful.
 
Condensing steam is a good way to produce a pretty good vacuum and it's so easy. Boil water in an open (and I stress OPEN) container, screwing the lid on and pouring cold water on it will give a very useful amount of vacuum. All the old steam engines worked on the reduced pressure of condensing water rather than the pressure increase when boiling. The vessels that they could make were just not strong enough to handle positive pressure.
See this link to find out about the early 'atmospheric engine'. This sort of approach will not give a continuous vacuum, though.

If you just want a small amount of continuous 'suck' then the venturi vacuum pump will give you something usable. These aspirator pumps were commonly used in labs to produce reduced pressure for filtering etc.
 

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