A decades-old geometry puzzle has finally been solved by a young mathematician in South Korea. Hidden behind a simple hallway ...

As far as taking care of my body goes, I'm not exactly low maintenance. I regularly lift weights and try to get in pilates when I can, and I aim to eat a balanced diet. But in spite of this, I still ...

A South Korean mathematician has solved a geometry puzzle that baffled experts in the field for nearly six decades.