Here’s the paradox of blockbuster star Arnold Schwarzenegger: because he’s been in so many beloved action films, it’s easy ...

In Sweden, girls are just as likely to go to school and university as boys are. Women make up a greater proportion of the country’s professional and technical workers than any other country in the ...

One of Albert Einstein's greatest insights was realizing that time is relative. It speeds up or slows down depending on how fast one thing is moving relative to something else. How much does it change ...