Archive for March, 2010

Laser Technology

    “Light Amplification by Simulated Emission of Radiation” LASER in short, its an electronic device that emits an extremely intense beam of energy in a form of light rays. The laser function on the same basic principle as its forerunner, the maser and is sometimes referred as an optical maser. In both device, atoms had their energy increased are simulated, causing them to release this excess energy.

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    Posted by yizhan - March 30, 2010 at 7:01 pm

    Categories: General   Tags: , , , ,

    Transistor

    One of the first commercial application of transistors was in a telephone switching office. Consumers first saw them in transistorized hearing aids, sales of which began in 1952. Transistors and their multiple form, integrated circuits, are found in radios, television sets, tape recorders, toys, handheld calculators, fire and burglar alarms, video games and control of all kinds – from light dimmers to speed control on drills and motors.

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    Posted by yizhan - March 28, 2010 at 12:16 pm

    Categories: Tech-Reviews   Tags: , , , ,

    Manila hit by 6.0 magnitude earthquake

    MANILA, Philippines -- A 6.0-magnitude earthquake struck west of Manila last Thursday march 25, 2010, the seismology institute reported, causing buildings in the Philippine capital to shake and sending frightened workers out of their offices.

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    Posted by yizhan - March 26, 2010 at 5:55 am

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    Traveling through Time

    Traveling forward and backwards to different dimension and time, "time travel" an unsolved mystery in the world of physics. Theoretically, some physicist like Sir Isaac Newton said, that time is always the same for any one who observe it in any reference frame. This has been the belief and considered as a true fact by many people in the 19th century.

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    Posted by yizhan - March 25, 2010 at 9:05 pm

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    Robotics and its Legacy

    Robotics plays a great role in our technology today. It said to be the engineering science and main technology of robots. It is in relation with electronics, mechanics and software. Base in its history, the design for a humanoid robot or what was called the Mechanical Knight was design byLeonardo da Vinci in 1495.

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    Posted by yizhan - March 21, 2010 at 3:06 pm

    Categories: ASIMO, Robotics   Tags: , , , ,

    Solar Panel

    Solar panel, also known as photovoltaic module or photovoltaic panel is a device that collect light energy and convert it to electricity. It uses photovoltaic cells most commonly known as the solar cells. its development was started by a french physicist Antoine-César Bacquerel in his 1839 research. By observing its effect while doing an experement with the solid electrode dipped in an electrolyte solution(the one used in a battery) he notice a voltage was developed when the electrode is exposed to sun light.

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    Posted by yizhan - March 18, 2010 at 6:14 pm

    Categories: General   Tags: , , , ,

    Cloud Seeding

    Cloud seeding has been shown to be effective in altering cloud structure and size and in converting supercooled liquid water to ice particles. The amount of precipitation due to seeding is difficult to quantify. Cloud seeding may also suppress precipitation.

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    Posted by yizhan - March 17, 2010 at 11:09 am

    Categories: General   Tags: ,

    Automated Election in the Philippines

    The conduct of elections in the Philippines for the past four decades has remained largely unchanged. Philippine elections rely heavily on manual tallying and canvassing of votes thus making them vulnerable to control and manipulation by traditional politicians and those with vested interests.

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    Posted by yizhan - March 15, 2010 at 10:06 pm

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    LCD Television

    From CRT to Plasma Screen, now comes a new breakthrough in television technology, the liquid crystal display (LCD). For all we know, laptop computers, digital clocks and watches, microwave ovens, CD players and many other electronic devices uses this technology .

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    Posted by yizhan - March 12, 2010 at 10:54 am

    Categories: General   Tags: , ,

    CRT

    The first cathode ray tube to use a hot cathode was developed by John B. Johnson (who gave his name to the term Johnson noise) and Harry Weiner Weinhart of Western Electric, and became a commercial product in 1922.

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    Posted by yizhan - March 12, 2010 at 10:37 am

    Categories: General   Tags: ,