<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区
          English 中文網(wǎng) 漫畫網(wǎng) 愛新聞iNews 翻譯論壇
          中國網(wǎng)站品牌欄目(頻道)
          當前位置: Language Tips > Normal Speed News VOA常速

          Austrian programmers build free bridge to Internet(視頻)

          [ 2012-09-03 13:24] 來源:中國日報網(wǎng)     字號 [] [] []  
          免費訂閱30天China Daily雙語新聞手機報:移動用戶編輯短信CD至106580009009

          Get Flash Player

          Get Flash Player

          Download

          VIENNA — A group of computer programmers and hackers in Austria is creating a low-cost way of spreading Internet access across communities. "FunkFeuer" which means "network fire" in German, uses everyday technology to create a wireless network, called a "mesh," that can transmit data from person to person, without involving companies or governments.

          A group of computer programmers and hackers in Austria is creating a low-cost way of spreading Internet access across communities. "FunkFeuer" which means "network fire" in German, uses everyday technology to create a wireless network, called a "mesh," that can transmit data from person to person, without involving companies or governments.

          For most users, Internet access is a utility, like phone service and electricity. Customers pay a company to access the Web through phone service or cable TV lines. But FunkFeuer's equipment on Vienna rooftops is a different model.

          It provides wireless network access across large areas using the same open radio spectrum as WiFi. But unlike traditional WiFi, responsible for small wireless networks in homes and offices, the FunkFeuer mesh operates over much bigger distances.

          "You could do the same, of course, in a road, from window to window, and just sort of bounce along the road," explained Aaron Kaplan, a founder of the FunkFeuer mesh network. "Then you don't need these complicated, big-looking antennas. You can take just small ones just like this and just put it in your window."

          The key is to have enough users to put routers and antennas out in the open, so that every user becomes another provider, further extending the network. If one node has access to the Internet, all of the FunkFeuer users on the network do too.

          Many look at the technology as a way to circumvent government Internet controls.

          "It's very hard to shut them down, because you have to go after each single node, every single node owner," Kaplan explained. "So it's not easy, it's not as easy as it was in Egypt, where you go to one ISP (Internet Service Provider), which has all the Internet cables going through one building, and you just call them and say you need to shut this down. This is not possible anymore because it's so distributed."

          Metalab is a so-called hackerspace in Vienna, where tech enthusiasts collaborate on projects like computer networks as well as radio.

          Adrian Dabrowski was one of the first to work on FunkFeuer. Dabrowski recalled first playing with the then-new WiFi possibilities.

          "There were these experiments, make an own antenna and get not 20 meters but get 100 meters or get 200 meters and yeah, it was very interesting and suddenly you could build networks over a whole city and it was like a whole new world," Dabrowski recalled.

          And here, collaboration with ham radio operators like Clemens Hopfer has led to a new breakthrough that has allowed them to send data by shortwave radio to receivers up to 200 kilometers away.

          "If you want to spread links across a big country, it's not that easy to do it, but, it is possible," Hopfer said.

          Programmers say the technology holds great promise - and to help spur innovation, all of their plans and technical memos are available free, online.

          相關(guān)閱讀

          How parents can try to prevent dating abuse(視頻)

          American pediatrics group cites benefits of male circumcision(視頻)

          Scandals and mistakes influence US political campaigns(視頻)

          New laws needed to deal with users' digital legacies(視頻)

          (來源:VOA 編輯:Julie)

           
          中國日報網(wǎng)英語點津版權(quán)說明:凡注明來源為“中國日報網(wǎng)英語點津:XXX(署名)”的原創(chuàng)作品,除與中國日報網(wǎng)簽署英語點津內(nèi)容授權(quán)協(xié)議的網(wǎng)站外,其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉(zhuǎn)載和使用,違者必究。如需使用,請與010-84883631聯(lián)系;凡本網(wǎng)注明“來源:XXX(非英語點津)”的作品,均轉(zhuǎn)載自其它媒體,目的在于傳播更多信息,其他媒體如需轉(zhuǎn)載,請與稿件來源方聯(lián)系,如產(chǎn)生任何問題與本網(wǎng)無關(guān);本網(wǎng)所發(fā)布的歌曲、電影片段,版權(quán)歸原作者所有,僅供學習與研究,如果侵權(quán),請?zhí)峁┌鏅?quán)證明,以便盡快刪除。
           

          關(guān)注和訂閱

          人氣排行

          翻譯服務(wù)

          中國日報網(wǎng)翻譯工作室

          我們提供:媒體、文化、財經(jīng)法律等專業(yè)領(lǐng)域的中英互譯服務(wù)
          電話:010-84883468
          郵件:translate@chinadaily.com.cn
           
           
          主站蜘蛛池模板: 久久国产一区二区日韩av| 亚洲成人动漫在线| 国产成人午夜精品永久免费| 国产农村激情免费专区| 日韩中文字幕v亚洲中文字幕| 亚洲欧美综合精品二区| 国产MD视频一区二区三区| 伊人激情av一区二区三区| ww污污污网站在线看com| 深夜福利啪啪片| 九九九精品成人免费视频小说 | 午夜夜福利一区二区三区| 欧美一区二区三区成人久久片| 欧美日本一区二区视频在线观看| 欧美日韩一区二区综合| 在线观看精品自拍视频| jizz视频在线观看| av在线手机播放| 国产精品成人一区二区不卡| 国产午夜福利精品视频| 久热视频这里只有精品6| 亚洲不卡av不卡一区二区| 四虎永久在线精品无码视频| 国产在线精品中文字幕| 在线天堂最新版资源| 国产丝袜啪啪| 夜夜爽夜夜叫夜夜高潮漏水| 超清无码一区二区三区| 久久精品视频这里有精品| 日韩一区在线中文字幕| 91精品国产免费人成网站| 亚洲av美女在线播放啊| 国产成人午夜福利院| 国产在线精品综合色区| 性一交一乱一伦一| 久久99热全是成人精品亚洲欧美精品| 久久综合久中文字幕青草| a级毛片无码免费真人| 亚洲一区二区三区人妻天堂| 国产成人高清亚洲综合| 韩国美女福利视频在线观看|