A family's day with
Tungsten
He leaves the side
street and enters the motor way. Another driver nearly collides with him, he
blows the horn and the other car brakes hard. (It is early in the morning, some
others obviously still sleep even on the road.) The horn is really loud and a
lot of electric current is flowing. Such a horn needs special contacts be switched-
they are made of pure Tungsten.
Blowing the horn of a car
tungsten runs across us in everyday life when strong currents are
switched; the best known example is the car horn; however, safety switches also
contain tungsten.
When driving on the motor way he is happy to have this self darkening
mirror to avoid being dazzled by the cars behind him. A thin layer of Tungsten
bronze on the glass is responsible for the darkening.
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