In the article A Political Science Perspective on the Balance of Power and the Concert, the author Robert Jervis (1992:717) states, "The growth of a nation's power, if it becomes great enough to menace other strong states, will be at least partially self-defeating; the attempt to dominate the international system will call up a counter-balancing coalition that will restrain the state. ... In his book The Stability of a Unipolar World, he wrote, "The existing distribution of capabilities generates incentives for cooperation.... When it comes to military aspects, the United States...

• Word Count: 1317
• Approx Pages: 5
• Has Bibliography
• Grade Level: Undergraduate

According to Donald Lopez, Senior Advisor to the director of the National Air and Space Museum, in his book Aviation a Smithsonian guide, people of that time tried to imitate birds. ... Today's jet airliners carry anywhere from 100 passengers to more than 500 over short and long distances. ... The Concorde flies for British Airways and Air France, flag carriers of the two nations that funded its development during the late 1960s and 1970s. ...

• Word Count: 1526
• Approx Pages: 6
• Has Bibliography
• Grade Level: High School

"Necessity is the mother of all invention", and so it was taught and learned throughout all of World War 2. During World War 2 weaponry had to be upgraded and revised to fit every situation. The engineers of the war had to constantly develop new and better weaponry. Much like the engineers, the g...

• Word Count: 2286
• Approx Pages: 9
• Grade Level: High School