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Deconstructed torch

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The first alkaline battery was made in 1899 by waldemar jungner and was later devoloped by Thomas Edison in 1901. The modern alkaline battery was made by Lewis Urry. Alkaline batteries have a steel casing for holding the torch together and also steel is strong so that if it fell on the floor it would not break. Although you can recycle these batteries it is better to just throw them in the bin because it costs a lot of money and some traces of mercury has been found inside them en.m.wikipedia.org Alkaline battery - Wikipedia
The first alkaline battery was made in 1899 by waldemar jungner and was later devoloped by Thomas Edison in 1901. The modern alkaline battery was made by Lewis Urry. Alkaline batteries have a steel casing for holding the torch together and also steel is strong so that if it fell on the floor it would not break. Although you can recycle these batteries it is better to just throw them in the bin because it costs a lot of money and some traces of mercury has been found inside them en.m.wikipedia.org Alkaline battery - Wikipedia
The case is plastic because otherwise the electricity could leak out, plastic is a insulator. It is shaped this way so that it is easy to use and has a layer of rubber so it is comfortable to hold and is easy to grip on to. It is quite big, I'd say it would generally be a median size. This case would not be recycled.
The head of the torch is made up of the outer case is plastic and has lens which is made of glass. The lens is made of glass so the light can shine through easily and the plastic is a few cm higher than the lens so that if you drop the head of the torch the lens won't smsh www.bhphotovideo.com
A cone, the cone is also a reflector it holds the bulbs in place an reflects the light but it can only hold one bulb. It is made of low density polyethylene plastic so it could break easily. I think it is coated in glass so it can reflect.
These are the bulbs has a glass outline and a metal base. They are very small that makes them easy to put into different stuff but also makes them delicate. They are not generally reyclecled. To find out more click on the website below. en.m.wikipedia.org Incandescent light bulb - Wikipedia
This is a special bulb called LED bulb. It flashes and beneath are the things called LED bulbs and they fit in to the holder which is beneath. The base is metal because metal is strong and metal conducts electricity. It is small so it can fit into things easily. shopadmin.thaiepay.com