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by DrG123
Fri Aug 30, 2019 2:10 am
Forum: General discussion
Topic: School project involving freezer
Replies: 9
Views: 456

Re: School project involving freezer

As suggested, why not place your Pi outside the freezer? With just a run of thin wires to a pair of thermocouples. That way, your wife will be happy, the heat from the Pi won't disturb the equilibrium of your freezer and you won't need to immerse it in mineral oil either :) Perhaps drop the idea of...
by DrG123
Fri Aug 30, 2019 2:04 am
Forum: General discussion
Topic: School project involving freezer
Replies: 9
Views: 456

Re: School project involving freezer

An experiment of a poorly described hypothesis that has had many inconsistent results due to the huge number of confounding variables is about the worst possible choice for an educational experience for a student. On the contrary, I think it's an excellent choice. It will teach: 1. The importance o...
by DrG123
Wed Aug 28, 2019 4:42 am
Forum: General discussion
Topic: School project involving freezer
Replies: 9
Views: 456

Re: School project involving freezer

Thanks for the replies. Mineral oil and making holes in the freezer sounds like fun but are not really an option - my wife will kill me! At least it sounds like it should work OK the freezer. I do want to have a camera so I can see visibly when it freezes. It would be interesting to see if it occurs...
by DrG123
Mon Aug 26, 2019 3:51 am
Forum: General discussion
Topic: School project involving freezer
Replies: 9
Views: 456

School project involving freezer

Hi I recently acquired a Raspberry Pi and had an idea for my son's science project (he's only 7 so will need some help!). I want to use it to demonstrate the Mpemba effect ( https://en.wikipedia.org/wiki/Mpemba_effect ) where, under certain conditions, hot water freezes faster than cold water. My id...

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