5 ms·

Also: Preserved hair reveals just how bad lead exposure was in the 20th century (livescience.com) - https://news.ycombinator.com/item?id=46872282 https://news.y

by krunck 8mo ago

Also: Preserved hair reveals just how bad lead exposure was in the 20th century (livescience.com) - https://news.ycombinator.com/item?id=46872282 https://news.ycombinator.com/item?id=46872282