Scientists have invented a liquid ink that doctors can print onto a patient's scalp to measure brain activity. The technology offers a promising alternative to the cumbersome process currently used ...

The technology offers a promising alternative to the cumbersome process currently used for monitoring brainwaves and ...

Andy: Today, we'll be trying out the Prinker, a device that prints temporary tattoos in ... We're using the Prinker Pro, which costs $550. For that, you get the printer device in either red ...