Really interesting article. I had no idea that they aged urine and that they used it as nitrogen to make gun powder for centuries! bacteria would convert urine to nitrites!
> Surprisingly, I haven’t found a solid answer.
God, what a good pun.
alt Hacker News
Really interesting article. I had no idea that they aged urine and that they used it as nitrogen to make gun powder for centuries! bacteria would convert urine to nitrites!