Comments on: Engineers create self-healing coating to cut sewer clogging by 30% https://lifeboat.com/blog/2024/11/engineers-create-self-healing-coating-to-cut-sewer-clogging-by-30 Safeguarding Humanity Fri, 15 Nov 2024 11:25:11 +0000 hourly 1 https://wordpress.org/?v=6.6.2