Nikola Tesla was an inventor and physicist who is best remembered for his contributions to the AC power system and radio, but he may have also built a death ray. At a 1937 luncheon in his honor, Tesla claimed to have created a weapon that could shoot a concentrated beam of energy capable of bringing down fleets of airplanes. He further claimed to have built, demonstrated, and used this weapon. When Tesla entered negotiations with the U. S., the United Kingdom, and the Soviet Union to sell his device, Tesla claimed that one of these parties had sent people to break into his room and steal his invention, but that this theft was impossible since the blueprint for the weapon was entirely in his mind. Unfortunately, Tesla died with the blueprint in his mind before anyone could get one. On second thought, maybe that’s not such a bad thing. What is the central idea of this passage?

Explanation:

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1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)