# If I drop a bucket of water from a height, what (if anything) happens to the air pressure on the water?

**URL:** <https://boards.straightdope.com/t/if-i-drop-a-bucket-of-water-from-a-height-what-if-anything-happens-to-the-air-pressure-on-the-water/997259>\
**Category:** Factual Questions\
**Tags:** science-math\
**Created:** [February 7, 2024, 7:22pm UTC](https://boards.straightdope.com/t/if-i-drop-a-bucket-of-water-from-a-height-what-if-anything-happens-to-the-air-pressure-on-the-water/997259 "2024-02-07T19:22:09Z")\
**Posts on this page:** 1\
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**Author:** ![Beckdawrek](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/beckdawrek/32/3647_2.png) [@Beckdawrek](https://boards.straightdope.com/u/Beckdawrek)\
**Post date:** [February 9, 2024, 6:50am UTC](https://boards.straightdope.com/t/if-i-drop-a-bucket-of-water-from-a-height-what-if-anything-happens-to-the-air-pressure-on-the-water/997259/16 "2024-02-09T06:50:34Z")

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Well.

I took one for science one time. I can tell you what happened.

I was standing by my kitchen island eating my raisin bran flakes with exactly 1/2 cup of skim milk.  
In some weird coincidence a moth flitted around the hanging pendant light. Two Siamese cats decided it would be fun to jump up on the island and up to the light. There-by causing me to jump.  
In a physics related confabulation, my bowl released from my grip. Went up about 2 feet and crashed down to the granite countertop. Smashing into a million shards.  
I promptly noticed milk/flakes in my face, hair and shirt. No shards of glass.  
The pressure was 100% released.  
Except raisins were on the floor with the shards of glass. I presume their weight or maybe stickiness kept them with the bowl.

At about 3 minutes later the pressure was released on my mouth. And curse words emitted. Again 100%.

My conclusion: the liquid will fly out into your face. Wear eye protection.  
And don’t eat cereal with cats stalking the room for flying insects.

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