Sleep? How do gps systems work? Who was the first person to reach the North Pole

oil spills affected the planet and what steps are being taken to prevent them? What was the Magna Carta

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oil spills affected the planet and what steps are being taken to prevent them?

  • What was the Magna Carta and how did it change England?

  • What is the curse of the pharaohs?

  • Why was Socrates executed?

  • What nonlethal weapons are used by police to subdue rioters?

  • How does the prison population in America compare to other nations?

  • How did ancient sailors navigate the globe?

  • Can gamblers ever acquire a statistical advantage over the house in casino games?

  • What is alchemy and how has it been attempted?

  • How are black holes formed?

  • How was the assassination of Abraham Lincoln plotted and executed?

  • Do the benefits of vaccination outweigh the risks?

  • How do submarines work?

  • Do lie detector tests accurately determine truthful statements?

  • How did Cold War tension affect the US and the world?

  • What happened to the lost settlers at Roanoke?

  • How does a hybrid car save energy?

  • What ingredients can be found inside of a hotdog?

  • How did Julius Caesar affect Rome?

  • What are some common sleep disorders and how are they treated?

  • How did the Freedom Riders change society?

  • How is internet censorship used in China and around the world?

  • What was the code of the Bushido and how did it affect samurai warriors?

  • What are the risks of artificial tanning or prolonged exposure to the sun?

  • What programs are available to help war veterans get back into society?

  • What steps are involved in creating a movie or television show?

  • How have the film and music industries dealt with piracy?

  • How did Joan of Ark change history?

  • What responsibilities do secret service agents have?

  • How does a shark hunt?

  • What dangers and hardships did Lewis and Clark face when exploring the Midwest?

  • Has the Patriot Act prevented or stopped terrorist acts in America?

  • Do states that allow citizens to carry guns have higher or lower crime rates?

  • How are the Great Depression and the Great Recession similar and different?

  • What are the dangers of scuba diving and underwater exploration?

  • How does the human brain store and retrieve memories?

  • What was the Manhattan Project and what impact did it have on the world?

  • How does stealth technology shield aircraft from radar?

  • What causes tornados?

  • Why did Marin Luther protest against the Catholic Church?

  • How does a search engine work?

  • What are the current capabilities and future goals of genetic engineers?

  • How did the Roman Empire fall?

  • What obstacles faced scientists in breaking the sound barrier?

  • How did the black plague affect Europe?

  • What happened to Amelia Earhart?

  • What are the dangers and hazards of using nuclear power?

  • How did Genghis Khan conquer Persia?

  • What architectural marvels were found in Tenochtitlan, capital of the Aztec Empire?

  • From where does spam email come and can we stop it?

  • How does night vision work?

  • How did journalists influence US war efforts in Vietnam?

  • What are the benefits and hazards of medical marijuana?

  • What causes desert mirages and how do they affect wanderers?

  • What was the cultural significance of the first moon landing?

  • What are sinkholes and how are they formed?

  • Have any psychics ever solved crimes or prevented them from occurring?

  • Who is Vlad the Impaler and what is his connection to Count Dracula?

  • What are the risks of climate change and global warming?

  • What treatments are available to people infected with HIV and are they effective?

  • Who was a greater inventor, Leonardo di Vinci or Thomas Edison?

  • How are the Chinese and American economies similar and different?

  • Why was communism unsuccessful in so many countries?

  • In what ways do video games affect children and teenagers?

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