| ▲ | alejohausner 6 hours ago | |
Air is mostly nitrogen. Nitrogen gas is blue. There. | ||
| ▲ | pbhjpbhj 5 hours ago | parent | next [-] | |
Go watch a video of nitrogen gas evaporating from liquid nitrogen ... tell me what colour you see? | ||
| ▲ | mjanx123 4 hours ago | parent | prev [-] | |
Oxygen is blue actually. That only contributes to the sky blueness a little tho. | ||