This DIY Tattoo Machine Thankfully Includes an Emergency Shut-Off Lever
A YouTuber’s latest 3D printer project includes a real tattoo gun and a large clamp to keep your skin in place.
IEEE Spectrum on MSN9h
These Graphene Tattoos Are Actually Biosensors
Right now, such tattoos don’t exist, but the key technology is being worked on in labs around the world, including my lab at ...