[Luke Towan] has a cool HO scale Escalator mostly made of 3D printed parts, with some laser cut acrylic, for a station on his HO model railroad. Escalators are mesmerizing to watch – there’s something ...

Sometimes the best way to figure out how something works is to make a model of it. 3D-modeling software makes it possible to do the job in silico, and sometimes that’s enough. But to really get inside ...

With an eye toward developing more stable structures capable of withstanding harsh environmental conditions—including those that future astronauts will find on Mars—researchers in Northwestern ...