The first Xs
were converted flintlock pistols that used gunpowder. One of the
first Xs was invented by the German chemist named Johann Wolfgang Döbereiner in 1823
and was often called Döbereiner's lamp. The device was very large and highly dangerous
and fell out of production by the end of the 19th century.
The patenting
of ferrocerium by Carl Auer von Welsbach in 1903
has made modern Xs possible. When scratched, it produces a
large spark which is responsible for doing its thing, and is suitably
inexpensive for use in disposable items.
ID X.
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Lighters
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