Regarding conducting cold-Lets say you want an object to be cold that is sitting on top of a thin sheet of glass which is layered on top of a sheet of aluminum and there is something very cold under the aluminum, will the object become cold? In other words, can the coldness conduct great even with the glass on top of the aluminum? Any help thanks!
Answer is it depends More strictly speaking, heat flows in all directions and by only 3 methods: convection, conduction, and radiation There are several ways to pump heat and a refrigerator/air conditioner uses technology which alternately expands and compresses a working fluid (freon in the old days before we worried about global warming)Scientists have also developed solid state thermoelectric materials but these are still very expensive compared to refrigerator typeSo it is better to consider cold as the absence of heatThe thermal conductivity of the material is only one part of the situationYou need to consider radiation and convection as wellIn metals, thermal conductivity generally goes with electrical conductivity so Al if a pretty good conductorIt depends a little on exactly what type of glass you are talking about but glass does not conduct as well as Al There are scientists who speciallize in understanding heat transfer and invest a lot of time and energy to learn about this very complex areaIf you really want to understand how heat flows in a particular system, there are thermal modelling software packages that allow you to calculate such thingsThese programs are rather expensive because you are dealing with a phenomenon that is rather complex and there are lots of factors to considerTypically, it takes a scientist some time to learn the software and understand how to use such programs to get realistic modelsIn your particular case, you need to be more specific and answer these questions: what is the object made of, how big is it, how much surface area is in contact with the glass, what is the starting temperature, how thin is thin, how big is the Al sheet, how thick, what is the area of contact between the Al and the glass, how is the Al cooled, what else is around the object (is it air, water, liquid N2, molten rock, a vacuum, other), and lots of other questions hope this helps
i don't see any reason why you can't bake paper clipsthey are usually made of steel.
