4steps from the big bang
116things can go into it
zipper
ComponentPart
Patented in 1917. It was named after the sound it makes.
First appeared1917 (109 yrs ago)
Made Of
Everything is made of something.← What it takes
What it leads to →
Goes into
Patented in 1917. It was named after the sound it makes.
From the big bang to zipper
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
steelc. 1,800 BCE
zipper1917