What's Something Made Out of an Insulator ?
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An "Insulator" is something made out of a material which has insulating properties. One may have a need to insulate against the cold, heat, or electrical current.\n\nAn insulating blanket wrapped around the water heater will increase the energy efficiency of the unit and use less fuel to keep the water hot.\n\nThe high voltage wires hang from an ceramic insulator on the telephone pole keeping the current isolated until it reaches the outlets in our home.\n\nA pot holder insulates your hands from the heat of the pot handles.\n\nStyrofoam cups insulate hot or cold by blocking the passage of heat.\n\nMaterials which have insulating properties will not conduct heat, or electricity. The heat will not travel through the material. \n\nThe opposite of an insulator is a conductor. Metal is a good conductor of both heat and electricity.\n\nInsulate is also a verb. I try to insulate myself from the critics by using the spell checker. :>)
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Thermal insulation blocks the movement of heat.\n\nTypical thermal insulations are spun glass or fiber glass that traps air.  Trapped dead air is a very good insulator because it prevents convection transfer of heat.\n\nA vacuum is also a good insulator and that is how a thermos bottle works.\n\nStyrafoam is another excellent insulator.\n\nThe higher the R value on an insulating product, the more heat that it will block.\n\nConsider this temperature gradient and heat flow:\n\nOutside it is 5ºF.  Inside it is 70ºF.  Over the span of 4 to 6" in a normal wall, the temp gradient is 65 degrees!  What prevents all that heat from rushing outside?  Good insulation of R13-R19 in the wall.
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None!\n\nAtmosphere is made up of Nitrogen (78%), Oxygen (21%),Argon (0.9%) and other gasses e.g Carbon dioxide, Methane, Rare (inert) gases (0.1%)
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An iron box. The magnetic field lines are trapped in the iron and the inside is shielded  of magnetism.\n\nTh
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The answer is glass... glass is an amorphus solid, meaning that it has solid characteristics, but is technically "flowing"
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Air is a good insulator as far as it doesn't circulate. It has low conductivity (about 1,4 Btu/ft h ºF), but if you let the air circulate there can be a very good heat transmission due to convection.\nThat's why insulators try to trap small amounts of air inside, so the air stays immobile.\nVaccumm would be a much better insulator.
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I don't know the specific name for it, but, in telecommunications, there is a certain type of plastic used for insulating wires.  This insulation is known as self extinguishing, in that, as heat is applied to it and it gets to the point where it starts to try to burn, it releases some kind of gas that extinguishes the combustion that is beginning to take place.
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Plastic is a polymer, meaning it is a chain of small similar units all connected in a single molecule.  Usually it is made by taking a solution that consists of the building block units (called monomers) and including whatever chemicals will make the monomers bonds together.  The mixture is put into a mold and heated, and the resultant polymer has huge, inter-tangled chain molecules that become rigid and hard.  The mold is removed, and voila.
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Air. It's made out of air and plastic.
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Less dense materials are better insulators. The denser the material, the closer its atoms are together. That means the transfer of energy of one atom to the next is more effective. Thus, gases insulate better than liquids, which in turn insulate better than solids.\n\nAn interesting fact is that poor conductors of electricity are also poor heat conductors. Wood is a much better insulator than copper. The reason is that metals that conduct electricity allow free electrons to roam through the material. This enhances the transfer of energy from one area to another in the metal. Without this ability, the material--like wood..AND IN YOUR CASE RUBBER--does not conduct heat well.
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In either case they work by being resistant to the transfer of energy.\n\nDifferent kinds of energy are resisted in different ways.\n\nElectrical insulators are made of materials that have their electrons bound more tightly.\n\nHeat insulators are made of materials that don't conduct heat very well.  Often, they contain lots of air-pockets which is itself a good insulator of conductive heat.
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A substance as germanium or silicon whose electrical conductivity is intermediate between that of a metal and an insulator.
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It's a colloid in the form of gas in a solid.
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rule out metals!\n\ni'm surprised nobody said foam - styrofoam, for example.\n\nor anyhthing else that traps air.\n\nglass.\n\nplastics.
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A conductor will allow electricity to pass through it, an insulator will not
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How about glass, plastic, stone, metal, ...?
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It is made up of metal.\nIt makes noise to warn sailors about fogs.