We are currently using air bubbles to insulate everythingI think we could do betterVacuum filled balls made out of hard plastic or aluminum alloid should make the best insulator in the world since heat can not transfer through a vacuum(nothingness)Vacuum filled balls could be made small enough to make into a full body suit or made larger to insulate a refrigerator or made even larger to insulate an attic/house.
yeshyesh VEEEEEEEEEEEEEEEEEEEEEEEEEERY boring c'mon chelsea :) just purely because they're english :) go on msn/facebook/myspace or whatever else talk to your mates :^D
same here im in my photography class im just surfing the web and avoiding myspaceyou should text people.
Heat can travel through a vacuum, in the form of radiationOnce you have a pretty good suppression of conduction and convection, radiation transfer begins to dominate the energy transferThe surfaces you want to insulate need to be made highly reflective, so that photons are not absorbed (on the cold side) or emitted (on the warm side)You have to contain a vacuum, if you're using it in the air, and conduction through the containment walls will also be an issueThis is why little vacuum-filled BBs won't work-lots of heat will flow through the walls of the BBs and through the points of contactA lightweight foam, where the pockets are filled with air, will do much betterThe foam pockets prevent convection, and the conduction from pocket to pocket is minimizedThe best insulation with current technology is a cryogenic dewarIn this case, you have two metal pressure vessels, one inside the other, with a vacuum in betweenTo suppress radiation losses, the vacuum space is wrapped with multiple layers of reflecting mylar film, where the inner layers are progressively colderSince there are many layers, the temperature differential between any two layers is miminal, and this reduces the radiative heat transfer (since the radiation losses will be proportional to the temperature difference between layers cubed)The whole structure is held together by thin fiberglass stand-offs.
