Problem-solution essays are pieces of writing that unveil a certain problem and offer different ways of solving it. But how do you write such essays? An essay usually consists of four key components: ...

When trying to solve a problem—small or large—many people may tend to rush to a solution in order to get a process in motion or to just get it off their plate so they can focus on other things.

The Bernese theoretical astrophysicist Kevin Heng has achieved a rare feat: On paper, he has derived novel solutions to an old mathematical problem needed to calculate light reflections from planets ...