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    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.

    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.

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Category Information : Sports

This is our Sports category. If you are interested in Sports, feel free to browse these listings. If you have a site that fits within this category, Submit it for inclusion.
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Website preview thumbnail for : Wilderness Folk
The most important thing in any survival situation is your mind. Knowing basic survival skills will boost your confidence should you find yourself up a creek without the proverbial paddle, leaving ...
http://www.wildernessfolk.com
Website preview thumbnail for : Dynamic Discs
DISC GOLF BASKETS: Check out a wide variety of the industry's best disc golf baskets from Dynamic Discs! We carry a full line of frisbee golf baskets to meet the needs of players of all skill leve...
http://dynamicdiscs.com/disc-golf-baskets
Website preview thumbnail for : Cricket Store Online
We pride ourselves in having some of the best cricket gear you can find. From cricket bats and cricket balls to wicket keeper gloves, we offer competitive prices and a broad selection of quality br...
http://www.cricketstoreonline.com
Website preview thumbnail for : Amigos Del Mar
Our business slowly went growing and now we are currently one of the largest dive centeAmigos del Mar Nowrs on the island and we also assist smaller dive centers with dive rental equipment such as ...
http://amigosdivebelize.com
Website preview thumbnail for : Altius Directory
Awards Information's, Company Secretary, Ad Agencies in USA, Fortune 500 and 1000, SW Companies Lists, Movies information, comics, banks, finance ministers, credit cards, companies list, beauty, he...
http://www.altiusdirectory.com
Website preview thumbnail for : Sports Bets Online
Today people are ready to bet on everything under the sun. Betting sites lure customers by offering them grand jackpots and prizes.
http://www.betsonline.eu
Website preview thumbnail for : Bam Boo
Martial arts information and tips for choosing and maintaining your martial arts gear.
http://www.bambamboo.com
Website preview thumbnail for : Capital Camps
The capital camps full day and half day tennis camp featuring free daily lunches, free Capital Camps t-shirt and free before and after care.
http://www.capitalcamps.ca
Website preview thumbnail for : Soccer Scene
Soccer Scene has quickly earned the reputation of being the original "speciality shop" within the soccer field and has become the trailblazer as a major outlet for soccer and rugby replica kits and...
http://www.soccerscene.co.uk
Website preview thumbnail for : Awards Online
Awards online are manufacturers of corporate award trophies, modern metal sculptures and sports trophies. These can be provided with presentation boxes and an engraving service based on client requ...
http://www.awardsonline.co.uk

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Karate Training: An Introduction.
Martial Arts For Kids.

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Website preview thumbnail for : Bis Henderson Recruitment
As recruitment specialists, Bis Henderson work with businesses to successfully hire supply chain, logistics and procurement professionals on a permanent and interim basis across professional, manag...
http://www.bis-hendersonrecruitment.com/
Website preview thumbnail for : Vegas Horseback Riding
Horseback riding in Las Vegas. Choose from rides that include breakfast, lunch, or a sunset steak dinner. Overnight Las Vegas horseback tours also available.
http://www.vegashorsebackriding.com
Website preview thumbnail for : Alive Network & Entertainment Agency
Has grown into the largest supplier of live entertainment for weddings, corporate events and private parties in the UK. With over 90,000 previous customers and an artist roster of over 1750 bands, ...
http://www.alivenetwork.com
Website preview thumbnail for : Ferienwohnung Kluntjes Greetsiel
Komfortable Nichtraucher Ferienwohnung im Herzen vom schoenen Fischerdorf Greetsiel.
http://www.greetsiel-feriendomizil.de

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The course of the River Thames as we know it today was created about 10,000 years ago, by melt water from the ice-sheets that covered much of the United Kingdom during the last ice-age...
Friendship poems happen to be just the best medium of expressing eternal friendship to that special friend. You can let all the love and affection you possess flow out, right onto the paper lying in front of you, through a sweet little friendship.
In this highly competitive market, people are looking out for effective ways to improve their businesses.
A whipsaw is a representation of profit-taking going on in the market.

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