Answers created by Peter

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• What cause the earth's gravitational field ?
  
• How many planets are there estimated to be in the universe compared with those that are known of?
  
• What is strong force?
  
• Do quasars travel at the speed of light?
  
• During which battle did the confederate army reach a Turing point?
  
• Question #56cf4
  
• Question #f136c
  
• Question #f8435
  
• Question #1263b
  
• Question #5d006
  
• Question #a9bdb
  
• What does the half life of carbon 14 mean? How is this useful in the field of astronomy?
  
• Question #1414b
  
• How does gravity work in toroidal masses?
  
• How many miles across is the universe? How is it measured?
  
• How does the electromagnetic force work? How can it both attract and repel?
  
• Who had become a symbol of the black power movement sweeping the nation by the early 1960s?
  
• What was a weakness in the Continental Congress?
  
• What was the main idea of Article Two?
  
• Why did England passed the Stamp Act in 1765?
  
• During the effort to desegregate schools in Little Rock, why did Eisenhower place the Arkansas National Guard under Army command?
  
• What caused the development of labor unions and to what degree did labor unions succeed in their goals during the Gilded Age?
  
• How are cosmic inflation and the Bubble Theory related?
  
• Question #12b95
  
• Why did the Pilgrims have a difficult first winter in Plymouth?
  
• What type of event led to the growth of the International Ladies' Garment 'Workers' Union?
  
• Question #89025
  
• Why were the tenement apartments crowded?
  
• What would happen if the sun was half its size? What would happen if it was double its size?
  
• Does the general realtivity thoery treat the four fundamental forces of nature as fictitious as space warps?
  
• What key points could have been changed in the Treaty of Versailles so as to have forestalled WWII, and what would a revised, better Treaty of Versaille look like?
  
• Why doesn't the government get to punish anyone it suspects of a crime in any way it wants? Why does it generally have to prove guilt?
  
• What are some specific examples of how a Cosmologist uses mathematics in his/her job?
  
• Why did the colonists choose to throw British tea in Boston Harbor?
  
• How did American colonists view the Revolutionary war?
  
• What was the first colonial industry in America?
  
• What was the purpose of issuing the Emancipation Proclamation when the U.S. government was not able to enforce it?
  
• Where did the four fundamental forces of the universe originate?
  
• What governing body made laws that colonists had to abide by (pre-revolution)?
  
• How big is the universe? is it infinite? if not, how does it end?
  
• Why is the number of members in the House of Representatives based on state population and the Senate is two per state?
  
• How can you comprehend the size of the universe?
  
• Why was it difficult to find and keep soldiers in the Continental Army?
  
• Question #5bcb2
  
• Question #b4100
  
• Question #fcc03
  
• How is the Hubble constant used to estimate the age of the universe?
  
• What role does radioactivity play in the formation of our solar system?
  
• Why did the Big Bang occur?
  
• Since quasars are radio sources, but highly red shifted, what actual frequencies were originally emitted?
  
• Question #abf98
  
• Is it possible to enter a black hole?
  
• How did Alaska and Hawaii become United States territories?
  
• What was Benjamin Franklin's role in the Revolutionary War?
  
• Why were colonial boycotts effective?
  
• Why were the experiences of the earliest settlers at Jamestown and at Massachusetts Bay so different?
  
• What event caused Congress to pass the Brady Bill?
  
• How do sunspots affect global warming?
  
• How do the magnetic field lines sustain themselves as the coronal mass ejection flies away from the Sun?
  
• How many new galaxies are formed in the universe each year? How does this relate to the number that die?
  
• How are exponents used in astronomy?
  
• How can we determine if the universe is expanding?
  
• How did the Union army gain control of the Mississippi River?
  
• What is it expanding into? Will it ever stop? Will we ever be able to go outside the zone it is expanding into?
  
• How does earth's formation differ from that of Mars?
  
• How long would it take to reach our nearest star with current technologies?
  
• Can you orbit the event horizon of a black hole?
  
• What motivated the Bonus Army to march on Washington, D.C. in 1932?
  
• What was the goal of the National Origins Act of 1924?
  
• Question #8058b
  
• How many stars and planets exist in the universe?
  
• How are magnetic storms on Earth related to sunspot activity?
  
• Why does Hubble's constant change?
  
• Question #92ee2
  
• Imagine that you will be visiting the Southern Hemisphere of Mars during its summer. What are some of the atmospheric conditions you might encounter?
  
• How does Hubble's Law change in an accelerating universe?
  
• In the evolution of the universe, what caused planets to form?
  
• How would you put the Universe to scale?
  
• Why is the expansion slowing down in most big bang models?
  
• Why is astrochemistry important?
  
• What are problems of travelling to different galaxies?
  
• How is a star's apparent brightness related to its luminosity? How is this related to the inverse square law?
  
• How were the gas giants formed in comparison to the rocky planets?
  
• How does gravity affect objects in our universe?
  
• What would happen if a gamma ray burst hit the Earth?
  
• Does the expansion of the universe have any effect on time?
  
• How is Hubble's Constant measured?
  
• Does the Sun generate most of its energy using the CNO fusion cycle?
  
• How did our universe come into existence?
  
• How do scientists determine the age of galaxies?
  
• What are the four fundamental forces, and what does each of them do?
  
• Was the meeting of the Congress a final step toward independence? Why or why not?
  
• How does the sun lose mass? How will it lose mass in the future?
  
• Do gravitational fields have negative energy?
  
• Why does the Milky Way Galaxy's nuclear bulge contain many red giants and supergiants as opposed to dwarfs and other stars?
  
• Would it be easier to measure a stars parallax from Jupiter? Why?
  
• What if all the galaxies are merely orbiting the center of the universe, but their orbit is so big that it seems like they're moving away?
  
• How do we determine the amount of dark matter in elliptical galaxies?
  
• Question #4caac
  
• Would life developing on planets near the center of the Milky Way Galaxy be in a lot of danger?
  
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