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Breathalyzers Search HSW and

Howstuffworks "How Breathalyzers Work" Auto Stuff Science Stuff Health Stuff Entertainment Stuff People Stuff Computer Stuff Electronics Stuff Home Stuff Money Stuff Travel Stuff Shop for Stuff Popular Searches Body Armor Hurricane Hypnosis Intelligent Design Military Technology Stem Cells UFOs Sponsored By: Subjects Earth Science Engineering Life Science Military Physical Science ShortStuff Space Supernatural Browse the Science Library Reference Links San Diego DUI Lawyer LA DUI Lawyer Explore Stuff Lidrock.com Big List of Articles Get the Newsletter Shop for Top Products Compare Prices for Breathalyzers Search HSW and the Web Main > Science > Physical Science How Breathalyzers Work by Craig C. Freudenrich, Ph.D. Table of Contents Introduction to How Breathalyzers Work Why Test? Principle of Testing Types of Devices: Breathalyzer Types of Devices: Intoxilyzer Types of Devices: Alcosensor III or IV Lots More Information Compare Prices for Breathalyzers Types of Devices: Breathalyzer There are three major types of breath alcohol testing devices, and they're based on different principles: Breathalyzer - Uses a chemical reaction involving alcohol that produces a color change Intoxilyzer - Detects alcohol by infrared (IR) spectroscopy Alcosensor III or IV - Detects a chemical reaction of alcohol in a fuel cell Regardless of the type, each device has a mouthpiece , a tube through which the suspect blows air, and a sample chamber where the air goes. The rest of the device varies with the type. Breathalyzer The Breathalyzer device contains: A system to sample the breath of the suspect Two glass vials containing the chemical reaction mixture A system of photocells connected to a meter to measure the color change associated with the chemical reaction To measure alcohol, a suspect breathes into the device. The breath sample is bubbled in one vial through a mixture of sulfuric acid, potassium dichromate, silver nitrate and water. The principle of the measurement is based on the following chemical reaction: In this reaction: The sulfuric acid removes the alcohol from the air into a liquid solution. The alcohol reacts with potassium dichromate to produce: chromium sulfate potassium sulfate acetic acid water The silver nitrate is a catalyst , a substance that makes a reaction go faster without participating in it. The sulfuric acid, in addition to removing the alcohol from the air, also might provide the acidic condition needed for this reaction. During this reaction, the reddish-orange dichromate ion changes color to the green chromium ion when it reacts with the alcohol; the degree of the color change is directly related to the level of alcohol in the expelled air. To determine the amount of alcohol in that air, the reacted mixture is compared to a vial of unreacted mixture in the photocell system , which produces an electric current that causes the needle in the meter to move from its resting place. The operator then rotates a knob to bring the needle back to the resting place and reads the level of alcohol from the knob -- the more the operator must turn the knob to return it to rest, the greater the level of alcohol. The Chemistry of Alcohol The alcohol found in alcoholic beverages is ethyl alcohol (ethanol). The molecular structure of ethanol looks like this: H H 3 C - C - O - H H where C is carbon, H is hydrogen, O is oxygen and each hyphen is a chemical bond between the atoms . For clarity, the bonds of the three hydrogen atoms to the left carbon atom are not shown. The OH (O - H) group on the molecule is what makes it an alcohol. There are four types of bonds in this molecule: carbon-carbon (C - C) carbon-hydrogen (C - H) carbon-oxygen (C - O) oxygen-hydrogen (O - H) The chemical bonds between the atoms are shared pairs of electrons. Chemical bonds are much like springs: They can bend and stretch. These properties are important in detecting ethanol in a sample by infrared (IR) spectroscopy . Next Page Prev Page Intro Next Page >> HSW Home Table of Contents: › Introduction to How Breathalyzers Work › Why Test? › Principle of Testing › Types of Devices: Breathalyzer › Types of Devices: Intoxilyzer › Types of Devices: Alcosensor III or IV › Lots More Information › Compare Prices for Breathalyzers Rate this Article! Home Store Newsletter Search Advertising Privacy Contact About Help © 1998 - 2006 HowStuffWorks, Inc.



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DUI Help with Drunk Driving Laws, Alcohol Treatment, DWI Attorneys and Criminal Defense Lawyers Everything You Need to Know About First Offender DUI / DWI, Drinking Driving and Drugs Home | State By State Help | DUI Lawyers | Insurance Help | Breath Testers | DUI Videos What's Hot New DWI Articles... Breath Test Penalties New DUI and DWI Laws for 2006 New MA OUI Law Poppy Seed Defense Works on DUI Charge Others Share Their DUI Experience... DUI Consequences Drunk Driving Education and Information National DUI.com A State by State Listing of DUI/DWI/OUIL Resources DUI Attorneys Lawyers Who Specialize in DUI/DWI/OUI Defense The DUI Library A Full Library of Information on DUI, Driving and Drugs Insurance Help Brokers Who Have the Best Rates for Each State Alcohol Issues Information on Issues Related to Use and Abuse of Alchohol and Drugs Videos Educational Videos for Schools and Programs Criminal Records Criminal Records, DMV, Employment Background Checks Breath Testers Breath Analyzers for Prevention and Calibration D.O.T./NHTSA Approved Prevent a DUI Arrest DUI Research Book for Lawyers How to Avoid a DUI Personal breath testers can save you and your friends the hassle and expense of a DUI arrest. Makes a great Christmas gift! More Information Drunk Driving Defense by Orange County DUI Attorney and Los Angeles DUI Defense Lawyer Lawrence Taylor. When you need a breath alcohol ignition interlock device (BAIID), there is no better choice than the Intoxalock . DISCLAIMER : This website provides only general information intended for those charged with drunk driving offenses. The information and news items on the site are for information only. This information is not legal advice, nor is it intended to create any binding advisory relationship. Do not take action based upon this information unless you consult with an attorney or other specialist. © 2005 Drivers Research Institute   All Rights Reserved   Send eMail   Advertise With Us



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DUI Insurance

Alaska DUI Guide: Car Insurance Everything You Need to Know About First Offender DUI / DWI, Drinking Driving and Drugs Home | State By State Help | DUI Lawyers | Insurance Help | Breath Testers | DUI Videos Other States Alaska Topics Alaska DUI Alaska Car Insurance Alaska DUI Lawyers Google Search Results Alaska Auto Insurance Since 1993, InsureMe has helped countless consumers save money on their auto insurance. Fast, easy and free. With our free service, enter your information once and you are instantly matched with the most competitive companies in the business. You'll get back up to five quotes so you can compare and save. At InsureMe, we shop your insurance so you don't have to. Your privacy is important to us. At InsureMe, we use the highest level of security available to safeguard your personal information. We hate spam just as much as you do, so we'll never sell or rent your email address for mass marketing. Why not get started today? Get Quote Now Home > State By State Help > Alaska DUI > Car Insurance DISCLAIMER : This website provides only general information intended for those charged with drunk driving offenses. The information and news items on the site are for information only. This information is not legal advice, nor is it intended to create any binding advisory relationship. Do not take action based upon this information unless you consult with an attorney or other specialist. © 2005 Drivers Research Institute   All Rights Reserved   Send eMail   Advertise With Us



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DWI I first started

Dance With Intensity - The History of DWI Latest News | About | Support | Downloads | Tools | Donate | Links | Contact Us Current Version: 2.50.00 The History of DWI I first started working on DWI in late 2000, after a friend of mine told me about this dance game that was just starting to gain popularity in North America, at least in this area. I was curious, but not overly interested. After all, I had Samba De Amigo for my Dreamcast to keep me happy - and there were no arcades near me anyway. However, after hearing enough about DDR, I found an arcade machine and gave it a try for the first time. Very fun - but I found the way the steps were displayed very confusing. I much preferred the format that Samba used - notes moving outwards from a central point. That got me thinking - I could make a dance game that used Samba 's format... so I downloaded the TinyPTC graphics library for Windows, and started working on it. I quickly became addicted to DDR, however, and imported the games for my Dreamcast and some dance mats. I got used to the layout of arrows and my project evolved into a standard DDR simulator. By December, 2000, I had managed to get arrows moving up the screen, in time with the music. I was using MSD files I had found online as a basis. The first working version of "Dance!". No scoring, grading, or interface. Only one song could be used, as it was hard-coded into the program and no song-select screen existed. The background was random noise. By this point, I had found other DDR simulators online and it became a challenge to me to try to do something better. In the months that followed, I threw together a quick song-select screen and tried to mimic the interface of 2nd Mix into the game screens. It looked awful, but I was happy with it. It also now let me play music from the official games I owned, without having to switch discs in my game console. (NB: You should have the rights to use any music you use with this or any other simulator). "Dance!", March 2001. There was a very simple title menu, that you couldn't go back to. All songs were in the same folder as the program, and all images were BMPs. There were a few sound effects, but no announcer. In May, 2001, a friend of mine found out that I had been working on a DDR clone, and asked to see it. He was very enthusiastic about what I had done so far, and wanted to help if he could. He offered to make a bunch of announcer samples for the game. Egged on by his interest in the game, I decided to try improving the main program itself. I had by this time imported 3rd, 4th, and 5th Mix, and wanted to improve the interface to make it more like these games. So I started work on it, completely redoing all the screens. Along the way I added Doubles and Solo modes, and added a way to do animations in the background during the song. djDH supplied a bunch of great announcer samples which I put into the game, and slowly the program evolved into a complete package. DDRMAX was due out late that year, and I had heard about these new 'freeze arrows'. Intrigued, I tried to find out what I could about them, and implemented them into the game. I didn't have much to go on, so the initial behaviour was different than how DDR did it. However, it did make my program the first to support freeze arrows, before DDRMAX was even in wide release. Because of this, and additions to the MSD format to allow for speed-changes and pauses, djDH and I decided it was best to change the extension. We also thought it would be cool to put the program online and see what people thought of it. So we came up with a few different names, and ultimately, "Dance With Intensity" stuck. I preferred it to the other plays on the "DDR" name. After much worry about what people would think, and whether it was right to release, we ultimately released DWI version 1.0 on December 14th, 2000. DWI 1.0, December 2001. Featured an interface that resembled 4th Mix. Multiple collections were supported, and djDH supplied the announcer samples. I went on vacation soon after releasing it, and when I came back was pleasantly surprised that people enjoyed the program. This made me want to keep working on it, adding new features and fine-tuning others. Eventually, I moved from PTC to use SDL for graphics, and eventually, DirectX for even faster performance. I added support for different skins, to change the look of the program easily, and allow for different sound-packs. In February, 2002, I released a version that added a new song-select screen and style-select screen, in the same style as 5th Mix (though the 4th Mix interface could still be used). DWI 1.50, February 2002. Featured a new song-select and style-select interface. I wanted to implement the groove radar and newer, sleeker look that the new DDRMAX games had, but didn't want to do that and still have to maintain the older 4th and 5th-Mix screens. Eventually, I decided that it was time to get rid of much of the old code and start over, with DWI2. DWI2 was a major reworking of the code, as almost every screen was changed to some extent. I also wanted to make the program look better overall, and worked hard on a new graphic design for it - instead of the grey, brushed-metal look of before, DWI2 sported a new, more interesting design of blues and whites, with much more detail. DWI 2.0, July 2002. Completely new interface, Groove Radar, and CRS files for Nonstop mode. DWI is still very much a 'work-in-progress' - it's a hobby project I enjoy working on in my spare time, and I'm glad people enjoy what I've done. There's still a lot of things I'd like to do with it. I am just one programmer, but I like to think that DWI offers users a clean, simple, and easy-to-use dance game that plays well, and innovates along the way. Thank you for your support! SimWolf. Dance With Intensity | © 2003, SimWolf. | TOP



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Austin DUI Lawyer

Bill Mange, Criminal Defense Lawyer & DWI / DUI Attorney - Attorneys & Legal Services - Austin, TX, 78731 - Citysearch BOC Spa & Beauty: Vote for your fave today -- New to Citysearch? Sign In · Help · Jan 26 2006 Home Restaurants Bars & Clubs Hotels Shopping Spa & Beauty Movies Events See More Categories » Search Business name, category, and/or keyword Search by name only Address, city & state, or zip | Neighborhood Address, city & state, or zip | Neighborhood Address, city & state, or zip | Airport Address, city & state, or zip | Attraction Select a Austin Neighborhood Arboretum Bergstrom Airport Buda CedarPk/Leander Downtown Austin East Austin Georgetown Hill Country Hyde Park Lake Travis North Austin Northeast Austin Northwest Hills Oak Hill Round Rock/Pflugerville San Marcos South Austin Southeast Austin Tarrytown Travis Heights University of Texas - Austin West Austin West Lake Hills Select an Austin Airport Select an Austin Attraction My Locations Add/edit locations Recent Locations Clear recent locations Save to My Citysearch Printer Friendly Version Home · Yellow Pages · Attorneys & Legal Services · Criminal Defense Attorneys · Profile Bill Mange, Criminal Defense Lawyer & DWI / DUI Attorney 3301 Northland Dr., Suite 215 Austin, TX 78731 (512) 451-5885 8.4 Overall Popular About our ratings Ratings feedback Send to a Friend Own this business? » Enhance or edit your listing See something wrong? » Suggest a correction Things to do nearby: 3301 Northland Dr., Suite 215 Austin, TX 78731 · Restaurants · Hotels · Bars · Movie Theaters · Department Stores · Shopping Centers & Malls · Grocery Stores · Pharmacies · Florists · Banks Related Searches · Austin Attorneys & Legal Services · Austin Criminal Defense Attorneys Attorneys & Legal Services · Search anything in Austin · Search Yellow Pages in Austin · Search other Cities · Browse Austin Editorial Lists Bill Mange, Criminal Defense Lawyer & DWI / DUI Attorney A message from this business Board Certified Criminal Lawyer Free Consultation Call 8-NO-DWI-NO-WAY Close Related Editorial Content 24/7 in Austin From a 24-hour restaurant to a shop or gym that never closes, find the best spots for night owls in Austin. 5 to Try: Ethnic Grocers These five shops will add spice to your meals in more ways than one. At-Home Party Planner Planning a party at your house? Find the right DJ, florist , caterer, party rental company, and any other home party needs in Austin. View More » Driving Directions 1. Enter starting address: Address: City: State: Postal Code: 2. Enter destination address: Address: City: State: Postal Code: Options Display type: Text Turn by turn maps with text Avoid the following: Limited access highways Toll Ferry lanes Find A Different Location Enter Location Address: Address: City: State: Postal Code: Austin What's the best in your city? Choose a category: View All Categories Color Facials Hair Removal Hair Salon Health Club Manicures Massage Nutritionists Trainers Spa Sunless Tanning Tattoo/Piercing Yoga About Us | Advertise with Us | Contact Us | Press Center | Site Guide | List Your Business on Citysearch | Become an Affiliate | Job Opportunities | Other Cities | Get a Business Website | Submit an Event | Privacy Policy | Terms of Use | About BOC | Austin Yellow Pages Citysearch is a registered trademark of 720619 Ontario Inc. and is used under license (C) 2006 Citysearch.com All rights reserved. partner sites: Evite - Entertainment.com - Gifts.com - TripAdvisor - ServiceMagic - Ticketmaster - Expedia - Hotels.com - Hotwire - HSN - LendingTree - Match.com - RealEstate.com - ReserveAmerica - Zerodegrees - CondoSaver - ClassicVacations - Ballard Designs - Frontgate - Garnet Hill - Smith+Noble - The Territory Ahead - Travel Smith



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