haxor@derp.fooMB to Hacker News@derp.fooEnglish · 1 year agoThe Evolution of Tunnel Boring Machineswww.londonreconnections.comexternal-linkmessage-square0fedilinkarrow-up13arrow-down12file-textcross-posted to: physics
arrow-up11arrow-down1external-linkThe Evolution of Tunnel Boring Machineswww.londonreconnections.comhaxor@derp.fooMB to Hacker News@derp.fooEnglish · 1 year agomessage-square0fedilinkfile-textcross-posted to: physics