r/BeAmazed Feb 18 '25

Place Flooded Detroit Neighborhood Turn into Ice

35.2k Upvotes

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u/thomas1392 Feb 18 '25

Would the ice start to crush the cars as it freezes?

16

u/RefinedAnalPalate Feb 19 '25

Not exactly. The ice (water) would freeze and expand around the cars and everything else. The only way something would crush is if it was under pressure or restrained in a container.

That’s why pipes in houses explode. It’s not that ice expands and crushes on its own. The water is pressurized, and then when it reaches a freezing point, it explosively expands. But this is due to the combination of temperature and pressure

22

u/p-nji Feb 19 '25

No, this is completely incorrect. Water expands (slowly, not explosively) when it freezes whether it's under pressure or not. And it doesn't expand "around" things; it expands in all directions.

12

u/Robinsonirish Feb 19 '25

yea, when water turns into ice it expands by 10%. The ice will take the path of least resistance, and when the water/ice on top creates more pressure than the bodywork of the car, the ice will expand into the car instead.

If anyone has ever seen ice freeze around trees for example, they do damage the tree, and trees are way more dense than bodywork on cars.