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.
If youâre writing an introduction, you probably already know what your topic is and what you want to say about it. (If you donât, you need to go back and do that before you try to write an introduction!) A good essay has an âangle,â or way of presenting argument or information, to its readers. For example, if youâre writing an analysis of a Shakespeare play, it could be helpful to give a brief synopsis of what itâs about and who the major characters are. 2  End with the thesis statement. 3  Hereâs where you state your argument or, in an informative essay, the topic for discussion.