can anybody help me?i want to choose a subject for searching about  metallurgy and optic.?
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There is a HUGE amount of infomation on metallurgy out there, but if you want an interesting search, try searching out why the HUBBLE Space Telescope failed - there was some deformed metal and the reason the optics tests passed before launch is an interesting story about materials, optics and people.\n\nI'm a metallurgist, and of all the exotic materials it turns out steel has the greatest range of properties (from annealed iron all the way up to ball bearing steel and stainless).  Titanium is interesting stuff (good for corrosion and medium temps (500°F-1000°F), but aluminum can have the highest density-to-strength ratio.  Research on how tungsten filaments are made is interesting too.  \n\nMark Twain said that a metallurgy student would learn more making his own pocket knife by digging the ore out of the ground, refining it into steel, and fabricating the knife than he would by book learning - do you have a passion you're particularly interesting in?  Learning about something you're interested in is effortless.\n\nAnother optics subject of interest is what is currently going on in semiconductor photolithography - they are reaching the limits of what can be done with light and refractive materials (CaF lenses) and immersion lithography (see link below).
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for something like that you would want to write about some current findings.\ngo to whatever the most prestigious engineering journal in your field is and look what they are printing. Write a report (review, digest, in-depth research) about a subject you find there and which interests you. In natural sciences you would look through Science and Nature. \nAlternatively go to the BBC news website and look at their science and technology news and pick and choose.\nWhere is your imagination???
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Yes, an interesting field of study.  Is this a question?  You might want to ask for information.  For example "What human factors are considered when evaluating automobile ergonomics?"  Otherwise, not a bad Goggle search keyword.
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Try subjects that include Applied Trigonometry. My experience was in tool and die repair. Search metalworking topics, and other subject matter that actually USES trigonometry. This way it will be MUCH easier to relate to how and why trigonometry is useful.
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It depends on what the topics are, but normally the google scholar search is helpful.  It can pull up a bunch of different research materials:\nhttp://scholar.google.com/
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Choosing A Topic - Research - University Library - Golden Gate University \nSee also, the University Library web page for more about online/electronic discussion lists) ... will help you pick an interesting and researchable topic. ...www.ggu.edu/university_library/research/choosing_a_topic -
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I had an essay on optical fibers last semester and this link was really, really helpful:\n\nhttp://electronics.howstuffworks.com/fiber-optic.htm\n\nWikipedia's not so bad too:\nhttp://en.wikipedia.org/wiki/Fiber_optics
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Consider ordering a Chemistry magazine from your local University or nearby University. ChemCorner usually has lots of information about current research etc.
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If you are interested in fundamental theory and derivations of various formulae try Timoshenko's book. If you are looking for solved problems in SOM and a more exam oriented book you may want to try Schaum's outline of Strength of Materials.
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here are some useful sites visit them-\n\nhttp://www.stolaf.edu/people/hansonr/mo/x-ray.html\n\nhttp://news.uns.purdue.edu/html4ever/9804.Crystallography.html
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Try these Links for the Metalworking Jeweler\nhttp://www.metalwebnews.com/jewelry/jewelry.html
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Do a google search for each spacific matrial you are interested in learning about.  Carbon fiber for instance brings up thousands of hits.
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use a topic from OPTICS\n=======================\nlike this\n\n-Light and Optics\n-Science, Optics & You\n-Electromagnetic Radiation\n-Optics for Kids\n-Refraction of Light Demonstration\n-Reflection/Refraction\n-Make a Splash with Color\n-Lasers\n-Reflection and the Ray Model of Light \n\nOR\n\non WATER SYSTEM\n=====================\n-Rivers and Coasts\n-Hydrologic Cycle \n-Droplet and the Water Cycle\n-Ground Water Primer\n\nOR \n\non Cells, Tissues, Organs and Systems\n=============================================\n-Life Systems \n-Cell Biology\n-Human Body\n-The Virtual Body\n-Cell Division and Cancer
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There are many different types of lenses. Here's a site with good information.
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http://highschool.lib.ua.edu/sci.html
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What i guess you should be looking for will be atmospheric sciences or u could scratch it down to atmospheric physics. There are thousands of articles and publications on the latter. Check your local public library or bookstore.
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Try doing a Google search under the Hall or the Hall-Heroult process.    That or check out a General or an Inorganic Chemistry book from the library.  That's a good launch point.