# Everyone gets this wrong

**URL:** <https://boards.straightdope.com/t/everyone-gets-this-wrong/1019166>\
**Category:** Cafe Society\
**Tags:** tv-shows-scripted, movies\
**Created:** [June 3, 2025, 3:48pm UTC](https://boards.straightdope.com/t/everyone-gets-this-wrong/1019166 "2025-06-03T15:48:18Z")\
**Posts on this page:** 1\
**Showing post:** 43

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**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\
**Post date:** [June 4, 2025, 8:15pm UTC](https://boards.straightdope.com/t/everyone-gets-this-wrong/1019166/43 "2025-06-04T20:15:33Z")

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> [@Whack-a-Mole](#):
>
> I thought dams (river dams) are bigger based on the volume of water behind them and less on the depth?

I knew I had seen this discussed somewhere here recently… It was in the XKCD thread.

> [@­xkcd thread](https://boards.straightdope.com/t/xkcd-thread/854574/4268):
>
> OK, total coincidence, of course. Or maybe YouTube has access to my cookies. Yesterday I wrote for the first time in this board about Pascal’s barrel, a subject I had not thought about in ages and never in English, today I had this recommendation in my YouTube suggestions: [[Pascal's Blaising Barrel - Exploding Glass Barrel with Water Pressure] ](https://www.youtube.com/watch?v=EJHrr21UvY8) It is 6 minutes and a half long and nice to watch, actually.

The video in that post is a barrel being exploded by adding a half-liter of water.

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