Ketchup is a non-Newtonian fluid

Re:Ketchup is a non-Newtonian fluid by teeray on Sunday March 14, 2021 @07:46PM (#26460767)

Melting / Solidifying wax is also the basis of old-school steam radiator thermostats.

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Re:Ketchup is a non-Newtonian fluid by 0xbadcafebee on Sunday March 14, 2021 @10:05PM (#26461831)

And current-day car thermostats. If it fails, your engine overheats, and that's an expensive repair. If you ever see a high temp warning light on your car, you can take it out and test its functionality in a pot of hot water (or replace it for ~$20)

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Re:Ketchup is a non-Newtonian fluid by jamiek88 on Monday March 15, 2021 @03:05AM (#26463240)

Also, was how the lunar rover handled cooling. Big block of wax used as a radiator. Well, not radiator exactly!

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Re:Ketchup is a non-Newtonian fluid by msl on Monday March 15, 2021 @03:16AM (#26463311)

I don't think the LM used wax for thermal management, but the Lunar Roving Vehicle did, as a "thermal capacitor" [1]. That is, heat was stored in a block of wax while driving, and then radiated away between uses.

[1] https://en.wikipedia.org/wiki/Lunar_Roving_Vehicle#Wheels_an...

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Re:Ketchup is a non-Newtonian fluid by jamiek88 on Tuesday March 16, 2021 @07:44PM (#26484717)

That’s what I said. Lunar rover.

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