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Aluminium is a metal with low density.
Why are power lines an extreme hazard when you are carrying or using an aluminium ladder?
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Aluminium and steel cans can be separated using a magnet, as steel is magnetic while aluminium is not. By running a magnet over a pile of cans, the steel cans will be attracted to the magnet while the aluminium cans will not, allowing for easy separation.
2000 years
Talc is a natural mineral, an Aluminium Silicate, and is quarried for cosmetic and industrial purposes.
Aluminium is more expensive than Steel
Aluminium is produced using the raw material bauxite,
One commonly used method to separate aluminium pieces from salt is by using a magnet. Since aluminium is not magnetic, the magnet can attract and separate the aluminium pieces from the salt. Another method is to dissolve the salt in water and then use filtration to separate the larger aluminium pieces from the saltwater solution.
Using marijuana, even for medicinal purposes, is illegal in most states.
Aluminium is highly reactive and if any comes into contact with air it quickly forms aluminium oxide. This means that aluminium is always covered in aluminium oxide, insulating it from the environment. Even when scratched the aluminium reforms the hermetic seal. Hence aluminium's uses are for situations where a metal that does not rust is required but using painted iron is not practical. This includes window-frames and aeroplane fuselages.
The body of an aeroplane is made up of aluminium because aluminium is light and durable. An aeropane needs to be light to obtain lift, and durable to withstand the stresses of flight. However, the body is not pure aluminium, but an alloy, or mixture of metals, as this increases the strength of the aluminium through reinforcement. Early aircraft alloys are were made of aluminium, copper (1.3%), magnesium (2.8%) and manganese (1%), a combination invented back in 1909. This has formed the basis for the development of modern aircraft alloys. There are now different combinations of aluminium alloys for different purposes. See the related weblink below for more details.