4steps from the big bang
144things can go into it
solar panel
ComponentPart
Sunlight knocks electrons loose in the silicon, which makes an electric current.
First appeared1954 (72 yrs ago)
Made Of
Everything is made of something.← What it takes
What it leads to →
Nothing on this map is built from it yet.
Sunlight knocks electrons loose in the silicon, which makes an electric current.
From the big bang to solar panel
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
Hehelium13.8 bn yrs ago
CO2 laser1964
copper wiredate unknown
solar panel1954