What scientific principle allows a compass to work?

More Questions:

Which sport awards the Sam Maguire Cup?

The first patent for the paperclip was recorded in what year?

How many squares on a side is a daily "New York Times" crossword puzzle?

In which Shakespeare play would you find Constable Elbow?

Who wrote "Uncle Tom's Cabin"?

What Asian city has an egg-shaped Space Museum?

By what name is Sodium Chloride better known as?

What make is the missing vehicle in the movie "Dude, Where's My Car"?

In the 2008 movie "Step Brothers', what is the name of Huff and Doback's Entertainment company?

Canadian Prime Minister Lester Pearson won the Nobel Peace Prize for defusing what world crisis?

What two architects are responsible for the design and construction of the Sistine Chapel?

Over what part of Captain Robert Jenkins were Britain and Spain at war in 1739?

What tanker ran aground in Prince William Sound, Alaska, on March 24, 1989?

What organization was formed at the Bretton Woods Conference in 1944

What was Belize known as until 1973?