No.212
Made one of these today. Didn't have pots or sand on hand already so it ran me like $20, though I'm sure I coulda borrowed some sand from a playground and saved a few bucks.
http://en.wikipedia.org/wiki/Pot-in-pot_refrigeratorHumidity is on the mid-high range where I live so this might be a fail, but I'll report back about it
No.215
Temperature outside: 67F
zeer pot temp: 50F
humidity: 51%
wind: not even a breeze
No.216
Temperature outside: 73F
zeer pot temp: 62F
humidity: 44%
wind: slight breeze
i just put some milk in there and i had a tomato in there already
tomato is cold, milk is getting cold
No.218
Temperature outside: 75F
zeer pot temp: 60F
humidity: 39%
wind: no breeze
No.219
Temperature outside: 78F
zeer pot temp: 60F
humidity: 35%
wind: none
No.220
Temperature outside: 79F
zeer pot temp: 60F
humidity: 33%
wind: none
No.221
Temperature outside: 80F
zeer pot temp: 61F
humidity: 31%
wind: none
No.222
Temperature outside: 79F
zeer pot temp: 61F
humidity: 33%
wind: none
No.228
If you use alcohol, would it make it colder?
No.229
No.232
>>228>>229 (You)
It could, but because you have to replenish the liquid as it evaporates, it wouldn't be as cost effective as using readily available water.
This page mentions it:
http://rebuildingcivilization.com/content/busting-myths-about-zeer-pot
>The rate of evaporation is the key to cooling performance in these devices, so faster evaporating liquids would help to improve performance, but it also matters how much energy they remove as they evaporate. Acetone removes 29% less energy than the same amount of water. It would probably make up for that with its faster evaporation rate. No.239
I'd been ignoring my zeer pot since I finished posting here, but I reached in it today and it was 55 degrees Fahrenheit in there. It's currently 66F outside, 57% humidity. Very slight breeze.