Recording the goings-on inside the human brain is no simple task, largely because there’s a skull in the way ... ink that can be used to print temporary “e-tattoo” sensors directly onto ...

Andy: Today, we'll be trying out the Prinker, a device that prints temporary tattoos in seconds ... which is an owl sitting on a skull. This one's got a lot more detail. More from News ...

Scientists have developed a breakthrough technology: temporary electronic tattoos (or e-tattoos ... be carefully positioned based on individual skull shapes. The conductive gel used dries out ...