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    PITOT TUBE
    November 12, 1732 - Academy of Sciences, Paris

    Henri Pitot read a paper to the Royal Academy of Sciences in Paris about an instrument he had invented to measure the flow velocity at different depths of water in the River Seine. It had a scale and two open vertical glass tubes on a wood frame. The lower end of one pointed down, the other bent at 90 facing the flow. The belief of the time was that flow velocity at a given depth was proportional to the mass above it, meaning increasing velocity at greater depth. Recording the difference in liquid levels in the two tubes, he showed the opposite was true. Henri Darcy improved the design, with the support of Henri Bazin. Today, the Pitot tube has an important application in aerodynamics for the measurement of the airspeed of aircraft.

    POLYPROPYLENE
    November 12, 1999 - Bartlesville, Oklahoma, U.S.A.

    In Bartlesville, Oklahoma, a plaque was placed on the site of the laboratory where the polymer polypropylene was invented, designating it a National Historic Chemical Landmark by the American Chemical Society. The first commercially successful use of the new material was in the Hula Hoop®. In 1951, J. Paul Hogan and Robert L. Banks, research chemists working for Phillips Petroleum Company, discovered the polymer unexpectedly during experiments with catalysts while trying to convert the natural gas components ethylene and propylene into compounds useful for gasoline. Later, they also developed a new catalytic process for making high-density polyethylene. Phillips soon invested in new plastic manufacturing plants.

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Website preview thumbnail for : Audio Electronics
We specialize in the service & repair of a variety of pro audio gear including guitar and bass amps power amps keyboard amps and keyboards.
http://www.audioelectronics.com
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If you are looking for quality digital video surveillance, then our company is the right place, these digital video surveillance are made with the use of advanced encryption technology to insure th...
http://avalanwireless.com
Website preview thumbnail for : Bender Converter
Our website that specializes in Online Converter Youtube contains details about dailymotion converter, mp3 twitvid. Here is a possibility to download and convert videos from various websites.
http://benderconverter.com
Website preview thumbnail for : Car Audio Electronics
We are a Car Audio Super Store. We are affiliated with Amazon, Best Buy Audio Super Store is a comprehensive and in-depth resource for Car Audio products In-depth Information about your favorite au...
http://bestbuy-audio.com
Website preview thumbnail for : Hit Right Technology
Is an expanding multinational company on a global scale. We create top notch technology turn-key solutions which serve as new tools For advertising and marketing. We are a pioneer supplying company...
http://www.hrt-me.com
Website preview thumbnail for : Johnson Audio Works
Here you will find helpful articles and downloads that will equip you and your team with the information to accomplish your goal of quality sound.
http://www.johnsonaudioworks.com
Website preview thumbnail for : Muvee's Video Editing Software
Reveal creates personalized, automatically edited home movies that are perfectly synced to your music. It's an automatic video editing software that lets you enjoy movie without manual processes.
http://www.muvee.com

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Worldwide business listings web directory Website submissions human reviewed business web index company directory with directory search.
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Carvers for Conservation was started to introduce the people conserving the habitat of migratory birds to the premier bird sculptors in the world. My intention was to be mutually beneficial to the ...
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Drs. Richards and Miller care for a pediatric dental practice dedicated to providing dental care, education and community service to Lake County and surrounding areas.
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A group of people with the same desire to help rescue and save small breed dogs from high-kill shelters throughout the united states and find them loving forever homes. We are always looking for vo...
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