I would say that this is the one object in the Modern world that has truly changed the world. The Transistor is an invention that has literally changed the world as we know it. Without it many of the modern devices would not exist today. All computer processing chips contain 1000's of minature transistors. The transistor chips that are in modern electronic circuits today are no different to this one in how they work. They are just smaller. The Mobile phone would not be possible without this. This is a modern invention that has been around since 1954 commercially and is in constant use today. In fact most of our homes actually contain 1000's if not millions of minature ones.
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