This safety system grants steelworkers hands-free, vertical mobility.— Interesting Engineering (@IntEngineering) December 16, 2019
Via: @ColumnClimber #engineering pic.twitter.com/Mpv76x7GwO
New ”solar-powered garden“ opens in Seoul subway station pic.twitter.com/5rHZ9JYWK9
— CGTN (@CGTNOfficial) December 16, 2019
