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Question:

several questions, cans and microwave, don't be shy :)?

firstly, what are the metal/alloy used in:cambell's soup cansmilo canspaint bucketsare they all tin?secondly:i have heard that we are not allowed to put metals in the microwave but i have done it with aluminium foil and it glows a little (like a bulb filament), however, that's only due to the electromagnetic currents and it doesn't spoil the microwaveshould be fine right? (assuming that the container is an open body and expanding gases are not an issue) i have heard about the metal reflecting the waves but it doesn't make senseelectromagnetic shielding occurs only with magnetic material (iron steel etc) so other nonmagnetic metals should be safe.please answer even if you only know answers to 1 questions :)

Answer:

Carbon nano tubes are stronger then steel, lighter then aluminum and more flexible then plasticWe're only a few years of from being able to mass produce it.
This depends on what kind of strenghtA diamond is very resitant lateraly, but smash it with a hammer and it will shadderSome type sof spider webs have been tesed to be 20x stronger than steel, and kevlar is very light and heat resitantThere is also a material called starlight which is extremly heat resitant but is not increadibly flexibly.
Tin cans aren't made of tinThey're made of steel with a tin coating to reduce corrosionMany cans are still made this way, but a large number are made of aluminumThe corrugated soup cans are this form of tinplate steelThe biggest problem with the microwave is if the charge built up on the metal is able to arc to frame of the microwaveThe arcing can burn a hole in the frame or damage the electronics inside.

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