In the past, creating accurate replicas of models and fantasy objects was a task left to the most talented of cosplayers. These props need not be functional, though. [Steve Johnstone] takes replica ...

When I was a kid and was first exposed to the idea of replicators in sci-fi movies, I just couldn't wrap my head around how an object could be created out of what appeared to be thin air. Sci-fi ...

Historically, remote control aircraft were produced much like their early full-sized counterparts. Wooden structures were covered with adhesives and taut fabric membranes. Other techniques later came ...