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rmberwin
- 13
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If the liquid in a soda straw moves up because the outside air pressure is greater than the pressure in the lungs, it seems that a straw wouldn't work in a vacuum. Is this the case?
No, a straw would not work in a vacuum. This is because a vacuum is an environment devoid of air, and a straw relies on air pressure to draw liquid up and into the straw.
A straw needs air pressure to create suction and draw liquid up. In a vacuum, there is no air pressure, so the straw would not be able to suck up any liquid.
Even if the straw was airtight, it would still not work in a vacuum. This is because the liquid inside the straw would still be subject to the same lack of air pressure as the surrounding environment.
It is possible to modify a straw to work in a vacuum by using a pump to create suction instead of relying on air pressure. However, this would not be a traditional straw and would require specialized equipment.
Yes, there are certain things that can work in a vacuum, such as specialized equipment designed for use in space or in vacuum chambers. However, everyday objects like straws are not designed to function in a vacuum.