i have a "nesters cookware" 32oz vacuum flask i bought in the sale section at LL Bean in freeport Maine 20 years ago. it's quite beat up but i love it for keeping my coffee hot all day. i just tested it compared to a 36 oz yeti and the yeti is not nearly as good.
my old bottle gave me this:
200 deg F starting
180 after 2 hours
180 after 4 hours
170 after 6 hours
my test on the yeti 36oz rambler bottle bought at LL Bean locally.
200 deg F starting
170 after 2 hours
155 after 4 hours
135 after 6 hours
No, vacuum-sealed water bottles do not freeze. The vacuum insulation helps to maintain the temperature of the liquid inside, so it will stay at its original state without freezing.
empty nesters are parents whos children have all grown up and moved out of the house.
No. They are not cavity nesters. Some cavity nesters are chickadees, bluebirds, woodpeckers.
The vacuum layer between two bottles will reduce heat transfer by conduction and convection. These methods of heat transfer require a medium for the transfer to occur, which is absent in a vacuum. Radiation, however, can still occur through the vacuum layer, but at a much slower rate compared to conduction and convection.
radiation
I am not sure if they are proportional, but they are inversely related. High pressure makes a low vacuum, and low pressure makes a high vacuum.
Pepsi still makes 32oz bottles. I have them all the time.
bottles
A gasoline engine makes it's own vacuum. The diesel engine has a vacuum pump next to the power steering pump.A gasoline engine makes it's own vacuum. The diesel engine has a vacuum pump next to the power steering pump.
You must have a diesel. The vacuum pump is what gives you POWER BRAKES and on the newer engines it also makes the power steering work. Only a gas engine makes vacuum. A diesel engine does not make vacuum, so they install a vacuum pump.
They migrate in flocks but are solitary nesters.
A good company which makes collapsible water bottles is Aquatina. They have many different water bottles in their assortment. You can find good deals at ebay or amazon.