3 ms·
You forgot 4. Heavy metals https://news.ycombinator.com/item?id=26769446 https://news.ycombinator.com/item?id=26769446
by sstephant 5y ago
You forgot
4. Heavy metals
https://news.ycombinator.com/item?id=26769446 https://news.ycombinator.com/item?id=26769446