HumansHow archaeologists can decide if prehistoric artefacts count as art To make sense of aesthetically pleasing ancient objects and what they tell us about how their creators thought, archaeologists must temper imagination with science Leader
TechnologyUnderwater writing technique lets you draw patterns in liquids Now there is a way to use ink to write words or patterns in liquid, much as you might write on a solid surface, and the letters could conceivably last a very long time News