Air may be invisible, but it’s full of energy! Dr. Rob and the Crew ignite cotton with a torch tube, test syringes and squishy softies, and even launch rockets with compressed air. From bouncy bags to ...

[Let’s Print] has been fascinated with creating a 3D printed axial compressor that can do meaningful work, and his latest iteration mixes FDM and SLA printed parts to successfully inflate (and pop) a ...