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TODAY IN HISTORY

    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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    about Steve Jobs

    Steve Jobs' annual salary was $1, just enough to keep company health benefits.

Advanced Video Editing Software :

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ARTICLE INFORMATION :

The article concentrates on software - especially video editing programs - that can be used to make and edit dynamic and still images by professionals and amateurs.

ARTICLE CONTENT :

Before, making movies was mainly associated with cinematography, but today due to the development of computer technology an ordinary person can edit video files in the comfort of their home and share with Web users or burn onto a DVD. A video editor is all you need to use.
A video editor is a software program enabling the user to create audio and video films. This kind of computer software programs can be used to add visual effects to dynamic or still images. Video editing software can be used both by professionals and amateurs to create documentaries, films, broadcast ads, magazine shoots, modeling and more. Even firms can make and edit video files for video presentations.

Video editing software can be used as an audio-visual aid to display information at educational establishments. When selecting a video editing program, you should pay attention to a few factors. Some video editing tools enable the user to create and edit video files. A good video editing tool is the one that is cost effective and simple and easy to use. The price and the usability factors are closely connected. In other words, a person should first consider the price of a video editing program and then the usability factor. It should be user-friendly and provide the user with customizable options.

A person should be able to easily make videos and add audio or visual effects to images or shots. You can choose images and make desirable effects. A user can also perform chroma key deploying these editing tools. Chroma key editing is when you deploy a green or blue screen behind an object while making, and you digitally supplant the background with a chosen image. Some start-of-the-art editing programs contain a video cloning option. You can clone an object using start-of-the-art video editing programs.

One can even use graphics behind an object, such as the ones deployed in television news anchoring. Other software programs convert videos from and to required video formats. In other words, an advanced video editing software tool provides professional, dynamic, state-of-the-art and customizable features.

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