4steps from the big bang
118things can go into it
glass
MaterialSubstance
Window glass is mostly sand, melted at around 1,500 °C and cooled before it can crystallise.
First appearedc. 3,500 BCE
Window glass is mostly sand, melted at around 1,500 °C and cooled before it can crystallise.
Window glass is mostly sand, melted at around 1,500 °C and cooled before it can crystallise.
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.