• 
    

    
    

      99热精品在线国产_美女午夜性视频免费_国产精品国产高清国产av_av欧美777_自拍偷自拍亚洲精品老妇_亚洲熟女精品中文字幕_www日本黄色视频网_国产精品野战在线观看 ?

      A quieter world during the lockdown疫情封鎖使地球更安靜

      2021-11-23 03:04:01
      瘋狂英語·新悅讀 2021年10期
      關(guān)鍵詞:封鎖排練安靜

      佚 名

      Humans are a really noisy species:hammering and digging,flying and driving,delivering heavy cargo all over the world.And those activities create noise as if it were from an earthquake,which masks delicate signals from faraway small earthquakes.

      Raphael De Plaen,a seismologist(地震學(xué)家)at the National Autonomous University of Mexico,compares listening for small earthquakes during normal times to sitting at a wedding,at a table far away from the band.You can't really make out the music,because there are so many people laughing and talking in between you and the loudspeakers.

      “And so now the lockdown is like coming during the rehearsal(排練)—no one is talking.So even though you're far away,the speakers are loud enough for you to listen to all the songs and clearly identify them.”

      De Plaen says he and his team have been able to detect“songs”—in this case,signals from earthquakes which they didn't even know existed.And now that they've identified those signals,they'll be able to look back at decades of data and use these newly discovered seismic(地震引起的)fingerprints to better identify small earthquakes like these in the past.

      The study,co-authored by more than 70 seismologists from around the world,appears in the journal Science.

      In addition to discovering new seismic phenomena,the study also demonstrates how seismic data could be used to track human activity and movement—like traffic in a certain region,for example—all without the privacy concerns that go along with cellphone tracking.

      “By definition,what we are observing is already anonymous(匿名的)—there's no way to actually know if someone like John Doe has left his home to spend the night in another place.”

      De Plaen points out that this finding may be one of the only positive thing to come out of the global pandemic:the ability to better detect future earthquakes.

      Reading Check

      What might be one positive thing the lockdown of the pandemic brings according to Raphael De Plaen?

      ______________________

      猜你喜歡
      封鎖排練安靜
      舞動未來
      聽,安靜會說話
      深入敵后,保持安靜
      A quieter world during the lockdown
      兩個大忙人
      青海湖(2020年6期)2020-09-07 08:08:22
      新世紀智能(高一語文)(2020年5期)2020-07-24 08:27:12
      樓上請安靜
      坐擁安靜
      散文詩(2017年18期)2018-01-31 02:43:43
      指揮藝術(shù)指導(dǎo)與學(xué)生的排練教學(xué)
      樂府新聲(2016年4期)2016-06-22 13:03:15
      二戰(zhàn)以來三次島嶼封鎖作戰(zhàn)的戰(zhàn)略決策及啟示
      軍事歷史(2004年3期)2004-11-22 07:28:36
      阳春市| 石门县| 南陵县| 冀州市| 嘉禾县| 海安县| 中牟县| 锡林郭勒盟| 望都县| 达孜县| 锦州市| 宁陵县| 滕州市| 枣阳市| 台山市| 龙口市| 乐陵市| 木兰县| 潞城市| 虎林市| 晋中市| 嵊州市| 馆陶县| 河曲县| 紫金县| 福建省| 利辛县| 若尔盖县| 孟村| 鄯善县| 洛宁县| 巴林右旗| 兖州市| 洪雅县| 林芝县| 广德县| 涟源市| 额尔古纳市| 合山市| 蒲江县| 和硕县|