Wednesday, October 8, 2008

Origins of Tinfoil




History

Foil made from a thin leaf of tin was commercially available before its aluminium counterpart. In the late 19th century and early 20th century, tin foil was in common use, and some people continue to refer to the new product by the name of the old one. Tin foil is stiffer than aluminium foil. It tends to give a slight tin taste to food wrapped in it, which is one major reason it has largely been replaced by aluminium and other materials for wrapping food.

The first audio recordings on phonograph cylinders were made on tin foil.

Tin was first replaced by aluminium starting in 1910, when the first aluminium foil rolling plant, “Dr. Lauber, Neher & Cie., Emmishofen.” was opened in Kreuzlingen, Switzerland. The plant, owned by J.G. Neher & Sons (aluminium manufacturers) started in 1886 in Schaffhausen, Switzerland, at the foot of the Rhine Falls - capturing the falls’ energy to produce aluminium. Neher's sons together with Dr. Lauber discovered the endless rolling process and the use of aluminium foil as a protective barrier.

Tin foil is also a good deflector of light. Wrapping it around an object with the shiny side outward will keep the object cool. Light will hit it and be deflected, keeping the sun's rays away thus keeping it cool. It can also be put on windows — shiny side outward — to keep the sun out.

1 comment:

Bukko Boomeranger said...

Gold foil is much better at keeping out the signals from transmitters in CIA satellites, if you can afford it. (I can, but blaggards keep knocking me down and stealing my hat.) It's a wavelength thing. Lead works too, but the colour is so unattractive...