Building a Lego-powered Submarine 2.0 - magnetic couplings
Why the open web links it
Demonstrates a creative engineering solution using magnetic couplings to build a leak-proof, Lego-powered remote-controlled submarine.
Linked by 9 independent sites, 1 of them widely read in the 2026-10 crawl of the open web, including hackaday.com, hornoxe.com, elrellano.com, crackedconsole.com, funnypani.com.