Why do we sleep?
How do GPS systems work?
Who was the first person to reach the North Pole?
Did anybody ever escape Alcatraz?
What was life like for a gladiator?
What are the effects of prolonged steroid use on the human body? What happened during the Salem witch trials?
Are there any effective means of repelling insects?
How did trains and railroads change life in America?
What may have occurred during the Roswell UFO incident of 1947? How is bulletproof clothing made?
What Olympic events were practiced in ancient Greece?
What are the major theories explaining the disappearance of the dinosaurs? How was the skateboard invented and how has it changed over the years? How did the long bow contribute to English military dominance? What caused the stock market crash of 2008?
How did Cleopatra come to power in Egypt what did she do during her reign? How has airport security intensified since September 11th, 2001? What is life like inside of a beehive?
Where did hip hop originate and who were its founders?
What makes the platypus a unique and interesting mammal? How does tobacco use affect the human body?
How do computer viruses spread and in what ways do they affect computers? What is daily life like for a Buddhist monk?
What are the origins of the conflict in Darfur?
How did gunpowder change warfare?
In what ways do Wal-Mart stores affect local economies?
How were cats and dogs domesticated and for what purposes? What do historians know about ninjas?
How has the music industry been affected by the internet and digital downloading? What were the circumstances surrounding the death of Osama Bin Laden? What was the women’s suffrage movement and how did it change America? What efforts are being taken to protect endangered wildlife? How much does the war on drugs cost Americans each year? How is text messaging affecting...
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