What scientific principle allows a compass to work?

More Questions:

Which celebrity launched a perfume range entitled "M" in 2007?

George Fox is traditionally called the founder of what religious group?

What is another name for a quaver?

What US city hosts the world's largest hot air balloon festival?

What sporting event is also called "birling"?

Which continent was host to the 1992 Summer and Winter Olympic Games?

In Arthurian myth, what son of Lancelot led the quest that achieved the Holy Grail?

In what comic strip would you find siblings Clayton, Katy and Nick?

Oregon's Mount Hood is located in what mountain chain?

What did Henry F. Phillips introduce for carpenters?

What is the Latin word for the liquid produced by the Ficus Elastica?

In what organ of the human body would you find the fovea?

What duo's biggest hits are found on 1985's "Songs from the Big Chair" album?

Along with Karl Marx, who penned "The Communist Manifesto" in 1848?

Which long-running TV show was the brainchild of former RAF gunner Bill Wright?