No one has yet done better than the glass / vacumn thermos .
It is the ONLY way to keep food warm .
all other methods lose heat at much higher rates and cool
in 20 minutes ....
Peltier diodes are not worth it . They have low performance
and will kill batteries quickly .
If they had less leak .... but they dont want to add a water cooled
side on the outside .
Even then , it would not compete with amonia absorbtion ( Dometic)
There is nothing easier to make that cools food , but the government
has friends like Dupont et al , so they outlaw anyone to make it
in the USA . So the Swedes do it .
Dupont makes 134a , their patent ran out for R12 , so they had to
cobble
crap together to make the inferior R134a .
IsoButane is avail everywhere , charge your system and then slowly
add propane to bring pressure up to that of R12 , use same oil .
50 million dollar penalty ., 20 to life .....
Notice butane /propane are NOT CFC's !
No govt pedals more dangerous drugs and meds than the US govt .
No govt do mo ho than da US govt . No govt murders more innocent
people than the Roman Empire of the 20th century ....
BTW Walmart is peddling $1 DVD's .
[ Gorillas ...from the heart of darkness] is worth 10 times that !
If ya like Nature/ documentary / National Geo stuff .
and
[ two worlds manatee and lion fish ] is good also .
DigiView entertainment , about 60 ins
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Juan wrote:
Quote:
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Instructions on how to make plates and mugs posted on http://www.heatstoragedish.com and http://www.heatretentiveplates.com Based on blackbody radiation theory and the stefan-Boltzmann law (Patent pending, all rights reserved). They are interesting: you preheat them one minute in a microwave oven and they stay hot (Still hot after) for 30 minutes. They keep your food HOT. Juan
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How to make "Heat Retentive Plates" and "Heat Retentive Coffee Mugs&qu 
How to make "Heat Retentive Plates" and "Heat Retentive Coffee Mugs&qu
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