because they have it in alot of places and are not reall useful
Aluminium is produced by electrolysis of the mineral bauxite. In Napoleonic times there was no cheap electricity :P Aluminum metal was rare because the Hall-Heroult process of running electricity through molten cryolite had not been discovered yet. Aluminum could only be produced with very small yield before this. Aluminum compounds such as bauxite are plentiful, but it is incredibly rare to find ores containing elemental aluminum.
- aluminium is cheap- aluminium has a low density- aluminium is not easy corrodable- aluminium has convenable thermal and electrical coductivities
Because it is cheap and lightweight.
It is a good conductor of heat, it is cheap and light
An aeroplane body is made up of an alloy (meaning: mixture of metals) of aluminium and copper. This is as aluminium is very light and cheap, but it needs copper as aluminium is too brittle. This way the plane have a weight of aluminium but the felexibility of copper!
Yes.
Aluminium is cheap, is not toxic, has a low density, it is not corroded in air.
One can find the cheap electricity for businesses by getting a quote from companies such as uSwitch. uSwitch compares the prices from all electricity suppliers available in the area, taking into account the amount of electricity used.
Because aluminium is a cheap and very maleable material that is harmles to people.
aircraft wings are madeup of aluminium because to produces the lift and drag force on the wings i.e aluminium is the metal which is easily polished and comparatively cheap
It's strong enough, cheap enough and easy enough to work with.
It's strong enough, cheap enough and easy enough to work with.