# Summary: Breaking A Ruler With Atmospheric Pressure

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Breaking a Ruler with Atmospheric Pressure

Introduction
In this experiment, I will try to use air pressure, along with some sheets of newspaper, to attempt to break a ruler. Air pressure is the weight of the atmosphere pressing down on the earth. A device called a barometer measures it in units called millibars. Most barometers use mercury in a glass column, like a thermometer, to measure the change in air pressure. I came up with this idea from when I read in a book about how some kids tried to break into a bank, using, among other things, air pressure to break in to the room with the money. After I was finished doing this experiment, I decided to search up whether or not it was actually possible to do something like that on such a large scale (If you would like to known what, theoretically, air pressure and a vacuum (not the machine kind, the black-hole-in-space kind) would be able to do to a glass of regular drinking water, you might want to think about going to this website: https://what-if.xkcd.com/6/). What I (later) found out is that air pressure actually can be used for a variety of things.
Well, I thought about it, and then I designed an experiment to test this question. My experiment is about air pressure, and my question is, is it possible to use air pressure to break a

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