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. ... Later, the innovation of airplane changed the world. ... Though a bird's wings effortlessly provide all three functions, human flight could best be approached by studying and implementing each separately. ... Then, in World War I, aircrafts were introduced. World War I & II Aviation in World War I Began with reconnaissance flights. ...

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

Gilderhus, author of History and Historians and expert on the subject, states in his book "History as a field of knowledge is broad given that there are virtually infinite possibilities to history inquiry...you can fill in the blanks that's what makes history come alive is that you may seek to research your interests. " Professor John Ulloa, instructor of history and anthropology, states "History is like a multifaceted diamond. ... In the book we are reading, Major Problems In Latina/o History, the essay written by Pedro Caban, "Chicana/o Studies and Puerto Rican Studies to Latina/o Studi...

• Word Count: 2288
• Approx Pages: 9
• Grade Level: High School

Upon studying the history of Liberalism, one can see that it has been subjected to a process of initial growth, intermediary decline, and finally a recent transformation. ... A Scottish economist by the name of Adam Smith released a book called "The Wealth of Nations ". In this book he criticized the idea of government intervention and regulation in economic matters and called for the elimination of such a system. He advocated, "No restrictions on manufacturing, no barriers to commerce, no tariffs "(Smith 2008 p112), stating; "free trade was the best way for a nation's economy to develop...

• Word Count: 2010
• Approx Pages: 8
• Has Bibliography
• Grade Level: Undergraduate