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  1. For radio: The identity of the original inventor of radio, at the time called wireless telegraphy... [1] and Lee de Forest invented amplitude-modulated (AM) radio, so that...

  2. ...many stories about how the lollipop was invented . Some believe that a form of it has... and in 1916 Samuel Born invented the Born Sucker machine. This...

  3. To invent a new product by writing on a Report; this is what I...up by your Science Club,the following was invented . The chances were by the perception only in mind had not...

    分類:社會及文化 > 語言 2014年01月01日

  4. ...) which powered itself with an internal combustion engine, was invented by Karl Benz in the year of 1885. The vehicle was...

    分類:車廠 > 其他 - 車廠 2009年04月19日

  5. 其實計算機未必一定是數位 (digital) 型的,也有類比 (analog) 型的。所謂類比型,基本上就是能作連續形態的輸出。比如,類似心電圖在一個網格紙上畫出連續的曲線,再從網格上讀出數據。這種計算機從古早就用來作積分。 最早有記錄的類比積分器出現於 1814 年。 1855 年,寫下電磁波...

  6. Edison invented phone. Moblie phone is convenient because you can make a phone call everywhere and everytime you want.

  7. 飛機發明人 飛機是人類在20世紀所取得的最重大的科學技術成就之一,有人將它與電視和電腦並列為20世紀對人類影響最大的三大發明,關於世界上最早的飛機到底是由誰發明的各國上存在爭議: 法國人認為世界最早的飛機是由法國人克雷芒·阿德爾 (Clément Ader...

    分類:文學及人文學 > 歷史 2007年05月12日

  8. I guess you ask for the persons who discovered the physical theories in electricity. There are a number of pioneers, such as Ampere, Ohm, Orsted, Weber, Volta, Gauss ... etc. But...

  9. Hong Kong Tramways is one of the three tramways in the world that have regular operation of double-decker trams (the others being Blackpool, England and Alexandria), and is the only system that runs...

    分類:汽車及交通 > 鐵路 2007年04月14日

  10. Genetically-modified (GM) food is produced from plants or animals which have had their genes changed in the laboratory by scientists. All living organisms have...