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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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Traveling With Your Pet :

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Many people most of the time travel. It's not a great think but when you are traveling with your pet that time you need to concentrate more on your pet which may disturb you to enjoy your vacation.

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Many people most of the time travel. It's not a great think but when you are traveling with your pet that time you need to concentrate more on your pet which may disturb you to enjoy your vacation.

If your pet is very young or old, or is ill, pregnant, injured recovering form surgery then avoid to take them with you as is such time they need more concentration and if you really wish to carry your pet in your vacation then consult with pet sitter rather than take a chance on injuring your pet by taking it with you. If you are in doubt, ask your veterinarian. If your pet has not traveled before, try a short overnight or weekend trip first.

Before you leave inform your veterinarian where you will be traveling to, for how long, as well as whether your pet will be traveling by air or car. Ask about any flea, heartworm, or tick risks for areas you will be traveling to. If your pet becomes carsick or restless when traveling, ask veterinarian about appropriate medications or treatments.

Many times while traveling it happen we get separated from our pet and they get panic so try to avoid such type of situation for traveling safely with your pet. Your pet should wear a safety collar all the time with a tag showing proof of rabies vaccination and your name address, phone number in case your pet becomes separated from you.

To take care of your pet when away from home try to keep fresh water available and don think of changing their die all of a sudden. Make sure your pet is accustomed to the crate before you begin your trip.

Source : PLR

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