How did the complexity of the Delian problem, an ancient Greek mathematical riddle that baffled brilliant minds, reshape our understanding?

So craft one, in clear language, about your problem. Write about why the change is needed, how things will shift and what you will feel like in the future once you’ve made your decision. Use “vivid ...

Keeping your noggin busy is known to boost cognitive performance, sharpen memory, and aid focus and attention. Some even reckon that regular brain workouts can stave off the symptoms of dementia.

Susumu Kitagawa, Richard Robson and Omar M. Yaghi will share the prize. Their structures can "capture carbon dioxide, store toxic gases or catalyse chemical reactions," the committee said.