An unmanned aerial vehicle (UAV), commonly known as a drone and also referred by several other names is an aircraft without a human pilot aboard.AVs are being developed and deployed by many countries around the world. Due to their fast proliferation, there is no comprehensive list of current UAV systems or current holders. For a list of models by country, see: List of unmanned aerial vehicles.
Writing Effective Introductions. Great writers know that effective and impacting essays begin with an interesting and engaging. introduction that reveals their thesis and purpose, while capturing the readerâs attention. Introductions help writersâ¦. â Reveal their essayâs central idea or thesis. â Guide readers to important ideas in the body of the essay.
Essay introduction. The introduction to an essay has three primary objectives: 1  Explain the context of the essay. 2  Give the answer: the response to the question or the overall focus of the essay (the thesis statement).