ASMR Artistry on MSN

Build a simple tattoo machine from everyday materials

Learn how to make a DIY tattoo machine from a regular syringe with step-by-step instructions, tips, and safety precautions ...
Ars Technica

Simple machine physics simulator online?

WAAAAAYYY back when I was in middle school physics they had some programs on our school computer that let you build simple machines. We basically built Rube Goldberg machines in the simulator to test ...