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Aluminium foil (or aluminum foil in American English; occasionally called tin foil) is aluminium prepared in thin metal leaves. The foil is pliable and can be readily bent or wrapped around objects. Thin foils are fragile and are sometimes laminated with other materials such as plastics or paper to make them stronger and more useful.
A foil is a very thin sheet of metal, typically made by hammering or rolling. [ 1 ] [ 2 ] Foils are most easily made with malleable metal, such as aluminium , copper , [ 3 ] tin , and gold . Foils usually bend under their own weight and can be torn easily. [ 2 ]
A tin foil hat is a hat made from one or more sheets of tin foil or aluminium foil, or a piece of conventional headgear lined with foil, often worn in the belief or hope that it shields the brain from threats such as electromagnetic fields, mind control, and mind reading.
Tin foil, also spelled tinfoil, is a thin foil made of tin. Tin foil was superseded after World War II by cheaper and more durable [ 1 ] aluminium foil , which is still referred to as "tin foil" in many regions (an example of a misnomer ).
So NASA’s scientists wrapped the cables in a whole lot of aluminum foil and found that in 1979 Voyager 1 had safely swung past Jupiter and would continue on its legendary journey.
Metallised films have a reflective silvery surface similar to aluminium foil and are highly flammable. The coating also reduces the permeability of the film to light, water and oxygen. The properties of the film remain, such as higher toughness, the ability to be heat sealed, and a lower density at a lower cost than an aluminium foil.
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