What is MEMS? Is it easy to build simple MEMS circuit for high school science fair project?
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Micro Electro Mechanical Systems\n\nIt is very hard to build as u should knw communications very well
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Man did u luck out running into me, go to www.sciplus.com "American science and surplus", all sorts of abandon science projects, factory over runs, cancelled government orders, motors, solar cells, weird stuff in the science dept, it's a mad doctors dream come true, CHEAP TOO ! check it out, you'll find lots of "COOL" stuff, that has many uses ! I did a hydro-electric demonstration of power application, that was so small, I could do it in a lab sink, E-mail me if you want an "A", it's an easy experiment, inexpensive, looks very sophisticated, yet simply displays the hydro-electric properties of producing low cost, hydro-electric power, using no battery's or electric for assistance, just water, so it's completely SAFE ! works on displaying milli-amps of D.C. power, yet you are still producing (at a very low voltage) power.
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This website is wonderful. I did my first project with the PIC chip after reading it. It makes it real easy and contains the MPlab assemblies. My advice is that you should learn a little first and then start trying it.\n\nhttp://www.rentron.com/PicBasic1.htm
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You can find printable schematics on the page I've linked below.\n\nGood luck.
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May b u cud try something from a post office box. Its simple as its based on wheat stone bridge.\n\nOr may be u cud study effect of frequency on reactance of inductor/capacitor. \n\nThese r easy and all viva is from theory only. No need to study extra...\n\ngud luck for ur boards.\n\n\nthere is nothing like 'good level'. u cud pick up any topic, even the simplest 1 n make a gr8 project out of it. some more suggestions - time period of physical pendulum, obtaining points where b=0 for various magnets etc. dont u hav enough lab manuals, friends to give u details. ask ur teachers they will help u.\n\n\naur waise bhi yaar, just chill, if u dont make ur proj ur school will surely make 1 for u. after all its reputation is at stake
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Hi Bettony here are the links for the subjects, you're sure to find what you need. Hope you win..!!!\n\nScience Fair Projects\n\nSelecting the Subject\n\n•Hundreds of free science fair projects are categorized under the following topics. \n\nhttp://www.freesciencefairproject.com/\n\nhttp://www.scienceproject.com/\n\nhttp://www.ipl.org/div/projectguide/\n\nhttp://www.all-science-fair-projects.com/\n\nhttp://www.energyquest.ca.gov/projects/index.html\n\nhttp://collaboratory.nunet.net/timber/scifair/2proj.htm\n\nhttp://www.ipl.org/div/kidspace/projectguide/\n\nhttp://www.niles-hs.k12.il.us/jacnau/IJAS/\n\nhttp://www.plymouthschools.com/Science/scifair/scicover.htm\n\nScience Fair Project Resource Guides\n\nhttp://www.sciencebuddies.org/\n\nhttp://www.usc.edu/CSSF/Resources/GettingStarted.html\n\nhttp://www.hallbar.com/sciencecenter.html\n\nhttp://www.sciencenewsforkids.org/\n\nhttp://www.selah.k12.wa.us/SOAR/SciProj2004/index.htm\n\nhttp://www.kathimitchell.com/cells.html\n\nhttp://www.reacheverychild.com/science_fair.html\n\nhttp://www.picadome.fcps.net/lab/sci_fair/science_fair.htm\n\nhttp://lkwdpl.org/schools/emerson/sciencefair/\n\nhttp://www.homeworkspot.com/sciencefair/\n\nhttp://www.kathimitchell.com/scifair.htm\n\nhttp://www.stemnet.nf.ca/sciencefairs/\n\nTips for Success\n\nhttp://school.discovery.com/sciencefaircentral/scifairstudio/handbook/scientificmethod.html\n\nhttp://www.sciencebuddies.org/mentoring/project_tips.shtml\n\nGood luck.\n\nKevin, Liverpool, England.
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and or and not are logical functions but moreover they are gates not switches. Microcontrollers are made of thousands of transistors (sometimes referred to as switches.) as they are configured to create logical units and buffers. \n\nHowever to correct the author of the question, it is not a matter of switch type (transistor, such as HMOS, CMOS, NMOS for example) But more than that, one kind of switch could you not use to create a "CPU" and the answer to that is it depends on how slow  or fast it has to be. We could create one made up of Bi-polar Transistors it would be huge and very hot in comparison , however it can be done and has been. How do you think we got them to size and speed they are today..
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All of these seem to have good starts for ideas.  You should be able to find plenty of good projects that you'll be able to work on prior to your science fair,\n\nhttp://yahooligans.yahoo.com/Science_and_Nature/Experiments_and_Activities/Science_Fairs/\nhttp://www.ipl.org/div/kidspace/projectguide/\nhttp://school.discovery.com/sciencefaircentral/\nhttp://www.scifair.org/\nhttp://www.cdli.ca/sciencefairs/\nhttp://www.isd77.k12.mn.us/resources/cf/ideas.html\nhttp://staff.washington.edu/chudler/fair.html\n\nGood Luck
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Try this website http://www.discovercircuits.com they have 1000's of circuits for all different applications
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Nanotech is indeed real. Have you never seen surveillance cameras the size of a dime, and what about tracking devices about the size of a cigarette lighter?Do you remember how many different components use to be in a regular am radio & tv set? Tubes, capacitors, resistors, coils, etc. are now on a pc circuit board in the form of an integrated circuit about 1"x1/4". The first computer ever devised needed many rooms to house. The laptop now is less than the sise of some wire bound notebooks high school kids carry.
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http://www.cs.uiowa.edu/~jones/step/circuits.html\n\nyou might consider buying the chips that do most of the hard part unless you are trying to learn how they work in which case that link is just perfect.
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Apparently so, but this is all I could find.  Next time start working on your project sooner :)\n\nhttp://www.all-science-fair-projects.com/science_fair_projects/40/511/876cb29d53dd2afebdeaadc98cecc049.html
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http://www.ortodoxism.ro/datasheets/stmicroelectronics/7836.pdf
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If you are interested in learning about electronics you might look into BEAM robotics (BEAM = Biology, Electronics, Aesthetics, Mechanics). Their approach is to design robots whose interactions with the environment are built into the electronics rather than programmed like most robots. They have a history of liking to scavenge parts from old electronic and mechanical devices. They also have a very active and helpful community that includes many kids your age learning about electronics and robotics (look around for a mailing list in the links, I'm sure there's still an active one). Don't be intimidated by the elctronics stuff, in my experience that's the easy part, the hard part is getting the moving parts to work. I am attaching some links below:
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Conductors and insulators are only building materials that provide the means for directing data from one point to another. The functionality of manipulating data comes from the special properties of semiconductors, which can be made to amplify a signal (i.e., a variation in voltage). \nWhen connected together, two very simple amplifiers (possibly as simple as one transistor each) can make a bistable circuit, one which always has one transistor conducting and the other cut off. These bistable circuits, called flipflops, can store one binary digit (bit) of information: one state, with transistor A on and B off, is considered "0" and the opposite state is "1". So a single flipflop can take the role of one bit of memory. A flipflop can be triggered to go from one state to another. When connected so one flipflop's change of state in one direction (say from 1 to 0) triggers a change (from 0 to 1 or from 1 to 0) in the next flipflop, you have the beginning of a binary counter. Similarly, flipflops in other connections can form arithmetic registers, in which two binary numbers can be compared, added, and otherise manipulated. Building on these simple forms, complex logical and arithmetic functions can be implemented.\nThe above only describes digital circuits. Semiconductor amplifiers are also used in analog and hybrid (part digital, part analog) microcircuits.
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well. it looks tiny to all of us, but infact it has millions of transistors arranged in particular circuitry within itself doing the job. \n\nthis link will help you in detail\nhttp://computer.howstuffworks.com/microprocessor.htm
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Flip flops are embedded in microchips and provide many varied logic functions. Check the Wiki reference in the link below, its pretty good and contains graphics.\n\nI've also added a couple of other reliable links.