A tetrahedron is the simplest Platonic solid. Mathematicians have now made one that’s stable only on one side, confirming a decades-old conjecture. In 360 BCE, Plato envisioned the cosmos as an ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. WEST SACRAMENTO, Calif. (KTXL) — One of the ...

We've got ourselves a nutrition pyramid. Now we've got to figure out how to use it. It's not quite as simple as it looks, but it'll probably end up in every classroom in America. So say good night to ...