4steps from the big bang
115things can go into it
tractor
ProductTool
A modern tractor does the work of hundreds of farm labourers.
First appeared1892 (134 yrs ago)
Made Of
Everything is made of something.← What it takes
What it leads to →
A modern tractor does the work of hundreds of farm labourers.
From the big bang to tractor
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
farmc. 12,000 yrs ago
tractor1892