A YouTuber’s latest 3D printer project includes a real tattoo gun and a large clamp to keep your skin in place.

Where did all the cute little smartphones go? Remember "big" 5-inch phones when they first came out? People thought they were huge! The screen size started to crawl up slowly but surely, and nowadays ...

They are made by heating these chemicals at a high temperature. When the plastic is soft it can be poured into a mould. Once the plastic cools, it hardens into a shape. Plastic is a material that ...