This is a tool that the Ancient Egyptians used. See the way it's a bit broken? Well, that's because it's very old. We call this kind of object an artefact. An artefact gives us a little window into ...

NEW YORK (Reuters Health) - Fitness experts have given a familiar physical activity guide for kids a splashy new look and a new name. They're hoping that MyActivity Pyramid, redesigned to match the ...