#video on #manufacturing a cast-iron wrench with lost-PLA casting in waterglass sand with a microwave kiln. It broke when he tried to use it. As usual #Shake-the-Future suffers from a significant amount of talking-head filler.
persuasive #video about #energy #futurism (mostly #solar-energy) and #economics, ending up in a fiery anti-#Trump #politics diatribe