ck45 Karma 832 Created 3 years ago Recent Submissions 1. ▲ In Seawater, Researchers See an Untapped Bounty of Critical Metals (e360.yale.edu) 4 points · 4 months ago · 0 comments 2. ▲ Ukraine launches explosive underwater attack on Crimean bridge (politico.eu) 9 points · 6 months ago · 0 comments All submissions on HN · View profile on HN