What Is the Name of the Phenomenon Where Hot Water Freezes Faster Than Cold?

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SUMMARY

The phenomenon where hot water freezes faster than cold water is known as the Mpemba effect. This effect occurs under specific conditions and has intrigued scientists and laypeople alike. The discussion highlights the confusion surrounding the pronunciation of "Mpemba," with variations including "pem ba" (silent M) and "Mem ba" (silent P). The conversation also touches on the importance of retaining forum threads for future reference and learning.

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  • Familiarity with the Mpemba effect
  • Basic knowledge of fluid dynamics
  • Experience with scientific terminology and pronunciation
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  • Research the scientific studies supporting the Mpemba effect
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  • Investigate the role of impurities in water freezing rates
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houlahound
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The one where hot liquids freeze quicker than cold liquids under certain conditions.

Tried to search it but can't recall the name, some African sounding name like Memoba effect.
 
Science news on Phys.org
Lol, I give myself a mark for being close.

Thanks for clarifying, admins might want to delete thread now as it served its purpose.

Apparently what I proposed are shape memory matresses used in hospitals...funny.
 
houlahound said:
Thanks for clarifying, admins might want to delete thread now as it served its purpose.

Threads don't get deleted for that
as you may have noticed, the various sections of the forum are full of 1000's of threads stretching back many years

They stay so that other people may find the info and also be helped :smile:

Even I learned something new ... hadn't heard of that effect before

Dave
 
Just to make this thread instructive for me too, how should I pronounce Mpemba?
 
Any way, who's going to know if your wrong?
 
I didn't ask whether my pronunciation is right or wrong, I asked how should I pronounce it. Of course its not easy to answer this question in text form, but I'm targeting people who know how to do that. One method is using a word with a known similar pronunciation.
 
Shyan said:
I asked how should I pronounce it.

searching around, the 2 common ways were

pem ba ( silent M)
Mem ba ( silent p)

still trying to find the correct one

EDIT ok a 3rd variation and hearing the guy say it


Ma pem baDave
 
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aaaah floating ice cubes freed from the surface of the container allowing more ice to form.elegant thought experiment explanation, anyone view his math link??

published?

good find.
 

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