We'll also test to see if the ink is water-resistant like its manufacturer, SketchOn, claims it is, and whether or not it actually made you want to get a permanent tattoo. For the first test ...

Discover how to build a tattoo machine at home with this simple science experiment. This DIY project is a great way to explore electronics and creative problem-solving in free time. Perfect for those ...

The radiotherapy has to be aimed at exactly the right place and that is where tattoos often come in. Most patients will have between one and five permanent pinpoint tattoo marks made on the skin.