Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

The concept of time travel has become popular ever since H.G. Wells wrote the science fiction novel: “The Time Machine”, way back in 1895. Wells coined the term “time machine” to describe a machine ...

We are always solving problems, some of which have instantly obvious solutions and others that do not. In the latter case, the word puzzle comes to mind instead. A problem can be defined therefore as ...

Editor’s Note: Published in 1957, this article comes from Martin Gardner’s legendary Scientific American column Mathematical Games. Read more in our special digital issue, Fun and Games. A paradox is ...

The correct technical definition of infinity is that it is equal to some of its parts. For example, both the set of all real numbers and the set of all even numbers have infinite elements, yet it is ...

Civil engineers can rightfully claim that no two bridges are exactly alike. However, bridges share many known characteristics, and the materials they are built with have known characteristics.