Made Of

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4steps from the big bang
125things can go into it

polysilicon

MaterialSubstance

Silicon purified to as much as 99.999999999%, "eleven nines". That's about one stray atom in 100 billion.

First appearedc. 1955 (71 yrs ago)

Silicon purified to as much as 99.999999999%, "eleven nines". That's about one stray atom in 100 billion.

From the big bang to polysilicon

The most direct chain from the start of the universe, following what things are made from and, for living things, what they evolved from. Each step shows when it first appeared.

big bang13.8 bn yrs ago
Hhydrogen13.8 bn yrs ago
water4.4 bn yrs ago
hydrogen gas1766
polysiliconc. 1955