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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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If your back porch is empty it might be time to think about adding some great patio furniture. Patio furniture is a simple way to add a lot to any porch or deck.

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If your back porch is empty it might be time to think about adding some great patio furniture. Patio furniture is a simple way to add a lot to any porch or deck.

Think about the many uses of well chosen patio furniture. First, having great patio furniture for your back deck or porch will encourage you to be outside more. When the weather turns nice not many people want to remain indoors any longer. Most look for ways to get out into the beautiful weather. But who is anxious to use their back porch or deck if it is totally empty? No one will rush outside to read a book or enjoy a glass of lemonade without somewhere comfortable to sit. Everyone could use a little more time outside, so think about purchasing some patio furniture so you can get out and enjoy the weather.

Another great reason to purchase patio furniture is to have a place to enjoy one of the most classic things to do in summer: barbequing. Every family I know could use an excuse to spend more time together and nothing is more fun in the summer than enjoying a great barbeque. Adding perfect patio furniture can give youreason to fire up that grill and make a family memory. If barbequing isn’t something your family enjoys consider having a game night using your patio furniture or make a picnic to enjoy just outside your home. Get creative. The important thing here is to use your new patio furniture to spend more quality time as a family, whatever that means for you.

Having patio furniture brings you one step closer to being able to host a great summer party. Invite all of your closest family and friends over to enjoy an afternoon of fun, food and fellowship. People will love to share good conversation and a glass of iced tea while they lounge on your patio furniture. There is nothing worse than hosting a party and having no where for people to sit and relax. You can host the best parties of the summer if you add small things like patio furniture to make your home more guest and party friendly.

A final great reason to consider purchasing patio furniture for your home is that patio furniture is really durable. Unlike some purchases that you have to buy over and over, when you purchase quality patio furniture you are investing in something that will add fun to your summers for years to come. Be sure to choose a style that will last a long time and that you’ll enjoy for a while. Shy away from choosing a trendy design or fabric pattern for your patio furntiture. The more basic and classic you choose, the longer you will want to keep it.

If you still aren’t convinced that patio furniture is right for you, a final thing I can suggest is to check it out. Go to a store or two and see what is available. Take time to sit in the chairs. I’m quite sure that once you see how full of comfort patio furniture really is, you’ll be purchasing some for your home before you know it.


Source : PLR

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