SchtivanTheTrbl t1_j9g3rxw wrote on February 21, 2023 at 5:54 PM Reply to comment by lvl2bard in TIL of Macadam roads. These roads were convex, raised a few inches, and made of layered crushed rock; they were state-of-the-art for the 19th century. The rise of automobiles led to the dust issues that were solved by binding the roads with tar, leading to the invention of tarmac. by jamescookenotthatone Just need to check one, then pocket that rock and use it as a template. Bigger than mouth rock? Goes in that pile. Smaller than mouth rock? The other pile over there. Permalink Parent 34
SchtivanTheTrbl t1_j9g3rxw wrote
Reply to comment by lvl2bard in TIL of Macadam roads. These roads were convex, raised a few inches, and made of layered crushed rock; they were state-of-the-art for the 19th century. The rise of automobiles led to the dust issues that were solved by binding the roads with tar, leading to the invention of tarmac. by jamescookenotthatone
Just need to check one, then pocket that rock and use it as a template. Bigger than mouth rock? Goes in that pile. Smaller than mouth rock? The other pile over there.