English
聯系我們
網站地圖
郵箱
舊版回顧



白鱀豚躲貓貓之神奇的隱身毯

文章來源:聲學研究所   發布時間:2019-05-10  【字號:     】  

  中科院聲學所的LOGO里有只白鱀豚。

  白鱀豚家族曾經生活在長江里,他們聲吶系統發達,玩起躲貓貓游戲來,誰在他們面前都是小透明。

  直到有一天,中科院聲學所的博士提供了一個神奇寶物,白鱀豚寶寶就成功躲起來了。這究竟是怎么回事呢?

[video:01-白鱀豚躲貓貓-2'20'']

  短視頻《白鱀豚躲貓貓之神奇的隱身毯》

  白鱀豚視力不好,就靠聲信號充當眼睛。除了用于通信聯絡的 “呼喚聲”(低頻),還有玩耍時悠閑自在的“哞叫聲”(中低頻)和回聲定位的“的答聲”(高頻)。

  第一輪“躲貓貓”,灰仔和小優裹緊了橡膠外套,等著白奇來找。

  白奇發出高頻“的答聲”,波束較窄,峰值頻率20~120kHz,但是一遇上橡膠就被吸收了,啥也沒反饋回來。

  白奇連忙換“呼喚聲”,這種聲波頻率低、波束寬,覆蓋范圍大,峰值頻率12kHz。“呼喚聲”信號經過灰仔和小優時很快就反射回來,白奇腦袋里形成了兩只白鱀豚的圖像。

  第二輪“躲貓貓”,白奇和灰仔披上博士用超材料做出的水下聲學隱身毯,等著小優來找。

  小優向四周發出“的答”聲。聲波繞過隱身毯繼續往前走了,沒有回波。小優又發出“呼喚聲”,還是沒有一點回音。

  小優只好認輸。

  原來,橡膠可以吸收高頻信號,對于低頻信號可是一點辦法都沒有。我們知道,在水下能夠遠距離傳播的就只有低頻聲波信號,所以中科院聲學所的博士專門研究了怎么騙過低頻信號的隱身毯。




(責任編輯:侯茜)

附件:

專題推薦

相關新聞


© 1996 - 中國科學院 版權所有 京ICP備05002857號  京公網安備110402500047號  聯系我們

地址:北京市三里河路52號 郵編:100864

福彩天下www.fcff7.com 110637.com | www.508718.com | www.87ji.com | www.858637.com | www.051899.com | 025875.com | www.419028.com | www.09an.com | www.763115.com | www.48464.com | 419163.com | www.305573.com | www.md10.com | www.716942.com | www.24684.com | 778807.com | www.210915.com | 购彩在线www.66332i.com | www.586320.com | www.4215.pw | www.958482.com | www.118401.com | 248322.com | www.447822.com | www.35uw.com | www.836922.com | www.151738.com | 大赢家彩票网www.54400x.com | www.591980.com | www.1622.in | www.999732.com | www.131223.com | www.cd90.com | www.652027.com | www.30339.com | 586607.com | www.287669.com | www.dh52.com | www.651398.com | www.000740.com | www.8924.xyz | www.974939.com | www.113081.com | 033057.com | www.472437.com | www.402.biz | www.954603.com | www.072679.com | www.595498.com | www.439901.com | www.7066.vip | www.956627.com | www.069085.com | www.522478.com | www.388170.com | www.50uo.com | www.800316.com | www.66414.cc | 750606.com | www.336617.com | www.tn42.com | www.703387.com | www.9896.biz | www.981793.com | www.103864.com | 027959.com | www.501137.com | www.31mj.com | www.787451.com | www.54455.cc | 984431.com | www.275107.com | www.nw30.com | www.719108.com | www.06122.com | 243880.com | www.216133.com | www.vr5.com | www.826980.com | www.69791.com | 大赢家彩票www.327836.com | www.579938.com | www.452.com | www.937002.com | www.071515.com | 588137.com | www.421382.com | www.9si.com | 332440.com | www.501982.com | www.64wy.com | www.809309.com | www.67137.com | 804224.com | www.454939.com | www.07mo.com | www.751410.com | www.22489.com | 449776.com | www.162789.com | www.cai678.cc | www.606380.com | www.9010.vip | www.970725.com | www.086098.com | 985204.com | www.473895.com | www.090.in | www.948866.com | www.495272.com | www.36ld.com | www.756891.com | www.21235.cc | www.973427.com | www.087728.com | 640084.com | www.338392.com | www.lg04.com | www.696316.com | www.006515.com | 023602.com | www.380088.com | www.83zc.com | www.842424.com | www.66798.cc | 085773.com | www.302122.com | www.di66.com | www.665347.com | www.38568.com | 110612.com | www.190578.com | 397913.com | www.528258.com | www.7737.in | www.983420.com | www.152079.com | 博友彩www.996546.com | www.555729.cc | www.85ef.com | www.802644.com | www.69543.com | 88a33.com | www.341099.com | www.iz32.com | www.655042.com | www.001706.com | 079063.com | www.279197.com | www.nx3.com | www.595660.com | www.5555.in | www.960520.com | www.058141.com | 782599.com | www.323297.com | www.ar24.com | www.587087.com | www.672.live | www.872225.com | www.256692.com | 爱购彩票www.355240.com | www.573589.com | www.76rf.com | www.799605.com | www.53279.com | 902670.com | www.249868.com | 博乐彩票www.35918u.com | www.554287.com | www.695325.com | www.659253.com | 322944.com | www.990920.com | www.951495.com | www.939001.com | 848774.com | qy14.com | 975858.com | www.996816.com | www.928535.com | www.828492.com | www.775772.com | www.675074.com | www.603293.com | www.570277.com | www.495033.com | www.369790.com | www.576962.com | www.502583.com | www.361157.com | www.953905.com | www.hg69.com | www.kx64.com | 大赢家彩票平台www.657320.com | 899094.com | 158229.com | 654122.com | 106543.com | 580696.com | 298138.cc | 771805.com | 739324.com | 554749.com | www.yp6.com | www.mf90.com | www.13vj.com | www.31gj.com | www.319196.com | www.326921.com | www.354263.com | www.355047.com | www.308818.com | www.318958.com | www.312633.com | www.361735.com | www.855262.com | www.954146.com | www.907069.com | www.885018.com | 65so.com | 345230.com | www.77451.com | 天天中www.22ttz.com | 博友彩www.371l.cc | 中国福利彩票www.3478q.cc | 好彩在线www.hczx3.com | 219794.com | 081909.com | 816751.com | 彩票驿站www.2350r.com | 华彩www.71399e.com | 天天彩票www.132880.com | 500彩票www.52072t.com | 998580.com | www.988459.com | 414848.com | 023181.com | 40xf.com | 886615.com | 458338.com | 惠民彩票www.hm7288.com | 易彩网www.36166l.com | 福彩网www.5522q.cc | 网易彩票www.080wy.com | 89ba.cc | www.837029.com | 356684.com | 657445.com | 003339.com | 316581.com | 984743.com | 026369.com | 名门彩www.33997k.com | 204311.com | 261685.com | 265779.com | 37vk.com | 头条彩票www.cp58870.com | 985592.com | 838419.com | 955242.com | 0381.com | 08ax.com | 357720.com | 大赢家彩票平台www.375805.com | 中国福利彩票www.08588l.com | 500彩票www.701514.com | 500彩票www.50788p.com | 中国福利彩票www.34788d.com | 乐彩赢www.0014b.com | 大玩家彩票www.84499j.com | 539036.com | 365710.cc | 993622.com | 140306.com | 099616.com | 954534.com | cai3455.com | 029164.com | www.991298.com | www.870504.com | www.958604.com | www.780925.com | www.657172.com | www.745205.com | www.662938.com | www.708223.com | www.612817.com | www.592816.com | www.066907.com | lq07.com | www.297889.com | 瑞彩网www.809215.com | www.779878.com | www.335941.com | www.66303.com | 997041.com | www.382109.com | www.671575.com | www.635668.com | 035203.com | 018493.com | 500彩票www.927793.com | www.cp6665.cc | www.cai1877.com | 如意彩票www.865657.com | www.f69.xyz | www.ug92.com | www.ni23.com | www.80se.cc | www.79th.com | www.59be.com | www.23rh.com | www.09ja.com | www.48rf.com | www.74ge.com | www.33md.cc | www.44uv.com | www.14qp.com | www.q83.net | www.i67.club | www.pm30.com | www.su84.com | www.wa07.com | www.tn88.cc | www.qq70.com | www.kh84.com | www.91690.com | www.735307.com | www.992596.com | www.962931.com | www.913330.com | www.854664.com | www.954426.com | www.914936.com | www.855616.com | www.892700.com | www.830256.com | www.804050.com | www.772863.com | www.767342.com | www.764802.com | www.721357.com | www.711811.com | www.669025.com | 4881.biz | 789423.com | www.993422.com | www.944518.com | www.858267.com | www.997193.com | www.942929.com | www.835272.com | www.713763.com | 凤凰彩票www.77803d.com | 808365.com | www.78333.com | 091673.com | 327102.com | 606533.com | 923319.com | 692442.com | 633506.com | 233403.com | xj51.cc | 开心彩票www.363067.com | 发彩www.50732s.com | 018050.com | 350803.com | 356590.com | 132263.com | 881945.com | 974477.com | 548249.com | 1678.cc | 0954.loan | www.976588.com | www.906829.com | www.801302.cc | www.711285.com | www.667950.com | www.626717.com | www.622806.com | www.657723.com | www.711739.com | www.627448.com | www.627850.com | www.608393.com | www.539726.com | www.383257.com | www.454007.com | www.382000.com | www.511171.com | www.654416.com | www.680258.com | www.43498.com | www.10766.com | www.6472.cn | www.8061.biz | www.1862.tv | www.3448.com | www.097.link | www.2224.top | www.79fv.com | www.d37.org | www.m51.com | www.23ey.com | www.yi65.com | www.pd65.com | www.q65.cc | www.of21.com | www.nx30.com | www.cw16.com | www.rn92.com | www.bf10.cc | www.pz20.cc | www.yf13.com | www.qx5.cc | www.iw98.com | www.3163.tv | www.1231.pw | www.3556.biz | www.0022.com | www.09888.cc | www.34979.com | www.004547.com | www.67086.com | www.91165.cc | www.52197.cc | www.58428.com | www.44136.com | www.18317.com | www.6230.org | www.2763.cc | www.54949.com | www.65988.com | www.77952.com | www.24845.com | www.20989.com | www.528165.com | www.520962.com | www.411609.com | www.405342.com | www.416132.com | www.340388.com | www.279569.com | www.202536.com | www.140250.com | www.267362.com | www.186731.com | www.343896.com | www.349133.com | www.285626.com | www.223875.com | www.129740.com | www.201247.com | www.233078.com | www.179517.com | www.180225.com | www.320090.com | www.260117.com | www.210721.com | www.142036.com | www.173613.com | www.208272.com | www.132164.com | www.133057.com | www.111702.com | www.038769.com | www.019060.com | www.81899.com | www.100348.com | www.045819.com | www.013512.com | www.71662.cc | www.85398.com | www.85768.cc | www.30723.com | www.8288.in | www.3696.biz | www.70xp.com | www.w01.net | www.fm84.com | www.14rl.com | www.or29.com | www.ao28.com | www.lt55.com | www.mm17.com | www.lm74.com | www.pq1.com | 500万彩票www.39500v.com | 881904.com | 599130.com | 005555.cc | 068500.com | www.979442.com | www.870680.com | www.956879.com | www.891582.com | www.766121.com | www.724286.com | www.615389.com | www.751926.com | www.645788.com | www.911903.com | www.775994.com | www.678430.com | www.596895.com | www.878161.com | www.965560.com | www.840911.com | www.792523.com | www.736827.com | www.631131.com | www.700343.com | www.698569.com | www.482955.com | www.139792.com | www.24642.com | www.06011.com | www.4888.hk | www.83dd.com | www.w89.xyz | www.nk68.com | www.cd59.com | www.sd6.cc | 网易彩票www.560726.com | 522898.com | www.980834.com | 082333.com | 111393.com | 968390.com | 265599.com | 500万彩票www.39500y.com | www.059277.com | www.026097.com | www.59913.cc | www.58333.cc | www.37626.com | www.6685.cc | www.93qy.com | www.p29.cc | www.jg61.com | www.gs6.cc | 057508.com | 126461.com | 960841.com | 042225.com | www.914033.com | www.771006.com | www.644131.com | 970970.cc | 142073.com | www.974728.com | www.857846.com | www.910538.com | www.771976.com | www.653434.com | www.809185.com | www.707331.com | www.572693.com | www.459646.com | www.413300.com | www.354901.com | www.241148.com | www.135952.com | www.674576.com | www.618986.com | www.812000.com | www.705844.com | www.570105.com | www.551759.com | www.399789.cc | www.339655.com | www.215171.com | www.109034.com | www.000647.com | www.26360.com | www.4332.biz | www.39ma.com | www.gc98.com | www.cai9366.com | 122551.com | 385606.com | 209148.com | 131807.com | 758003.com | www.938956.com | www.985016.com | www.838545.com | www.732658.com | www.620639.com | www.693026.com | www.576301.com | www.412241.com | www.369119.com | www.366319.com | www.280563.com | www.152629.com | www.059811.com | www.64822.com | www.48442.com | www.979916.com | www.965958.com | www.817733.com | www.732521.com | www.617105.com | www.749209.com | www.603458.com | www.547199.com | www.388746.com | www.545314.com | www.356424.com | www.276519.com | www.141488.com | www.001597.com | www.28267.cc | www.0596.xyz | www.72oh.com | www.72sz.com | www.lg07.com | 网易彩票www.080wy.com | 562973.com | 936583.com | www.962537.com | www.781507.com | www.718719.com | www.561711.com | www.483821.com | www.307951.com | www.256872.com | www.156753.com | www.163929.com | www.085901.com | www.97510.com | www.11796.com | www.988.org | www.238.com | www.36ae.com | www.fc99.cc | 201275.com | 2015.com-5wk.com | 748249.com | www.915891.com | www.727001.com | www.670708.com | www.523379.com | www.343597.com | www.159566.com | www.118262.com | www.72600.com | www.23513.com | www.1048.cc | www.13jk.com | www.cp861.com | 032397.com | 140016.com | 162964.com | www.977841.com | www.810602.com | www.661131.com | www.696521.com | www.557565.com | www.370931.com | www.356811.com | www.361164.com | www.237660.com | www.101431.com | www.69532.com | www.9002.loan | www.80el.com | www.hp72.com | 752061.com | 945222.com | 765345.com | www.948700.com | www.799401.com | www.659566.com | www.651270.com | www.535420.com | www.392819.com | www.290808.com | www.114867.com | www.88563.cc | www.029952.com | www.21225.cc | www.36037.cc | www.0032.net | www.4311.vip | www.15vt.com | 博通彩票www.606614.com | 719282.com | 04dw.com | www.968074.com | www.777828.com | www.859406.com | www.788973.com | www.627263.com | www.612270.com | www.391820.com | www.334672.com | www.170252.com | www.015753.com | www.9555.in | www.81as.com | www.hs56.com | 637267.com | 172005.com | www.984124.com | www.788739.com | www.716879.com | www.530281.com | www.315611.com | www.128079.com | www.273526.com | www.056722.com | www.05777.com | www.67bo.com | www.a23.ren | 乐彩赢www.0014e.com | 432511.com | www.972143.com | www.692027.com | www.525214.com | www.279203.com | www.070064.com | www.11945.com | www.56tw.com | 91彩票网www.912486.com | 552305.com | www.970712.com | www.777470.cc | www.569069.com | www.368328.com | www.282494.com | www.073044.com | www.00451.cc | www.10pz.cc | 439493.com | 687893.com | www.925299.com | www.669670.com | www.396850.com | www.278518.com | www.079021.com | www.9579.cm | www.01ng.com | 829171.com | www.00602.com | www.302514.com | www.100093.cc | www.32613.cc | www.41go.com | 旭彩www.565378.com | 723753.cc | www.969763.com | www.803703.com | www.603395.com | www.333824.com | www.128784.com | www.37896.cc | www.41rw.com | 易彩集团www.25688e.com | 364655.com | www.918405.com | www.657153.com | www.534240.com | www.252050.com | www.041967.com | www.4962.vip | www.tu97.com | 70980.com | 418585.com | www.812304.com | www.567309.com | www.309718.com | www.091883.com | www.05177.com | www.92148.com | www.5104.xyz | www.aa89.cc | 113902.com | 98sh.com | www.858904.com | www.602770.com | www.241042.com | www.009452.com | www.4534.vip | www.ua83.com | 740043.com | 443558.com | www.846855.com | www.667708.cc | www.772067.com | www.552927.com | www.300658.com | www.098007.com | www.32631.cc | www.30il.com | 中国福利彩票www.33588c.com | 网易彩票www.092wy.com | 004898.com | www.943513.com | www.677889.com | www.409904.com | www.239802.com | www.036176.com | www.9368.cn | www.69kk.cc | www.1ln.com | 购彩网www.75gcw.com | 044060.com | www.945563.com | www.931212.com | www.678735.com | www.515586.com | www.267439.com | www.038846.com | www.9563.biz | www.07yt.com | 901901.cc | 073566.com | www.953043.com | www.698915.com | www.871831.com | www.785992.com | www.559107.com | www.376269.com | 423163.com | www.918543.com | www.658980.com | www.477336.com | www.265363.com | www.077120.com | www.16440.cc | www.27mf.com | 福彩网www.5522v.cc | 03838.com | www.951698.com | www.683112.com | www.434434.com | www.285937.com | www.063922.com | www.00060.com | www.06rs.com | 841134.com | 466861.com | www.906268.com | www.692900.com | www.546828.com | www.276289.com | www.079653.com | www.16217.cc | www.24gm.com | 彩乐坊www.77clf.com | 946719.com | www.895081.com | www.631340.com | www.473568.com | www.282632.com | www.024265.com | www.7401.cm | www.2mx.cc | 爱彩www.00ac.com | 57sw.com | www.900069.cc | www.630082.com | www.620125.com | www.479303.com | www.218839.com | www.83910.com | www.015946.com | www.5213.org | www.mx98.com | www.8867.com | 360464.com | www.867417.com | www.856699.com | www.627879.com | www.618600.com | www.492567.com | www.197669.com | www.96679.cc | www.658.me | www.oh52.com | 458012.com | 4777.biz | www.830951.com | www.552803.com | www.276281.com | www.149554.com | www.97757.com | www.3811.cc | www.qa13.com | www.bo7.cc | 838279.com | www.966765.com | www.687234.com | www.355593.com | www.705953.com | 681736.com | www.879703.com | www.854234.com | www.666607.com | www.439999.com | www.191667.com | www.145488.com | www.89385.com | www.1822.me | www.q21.net | 网易彩票www.073wy.com | 346873.com | www.846390.com | www.598069.com | www.400782.com | www.456320.com | www.178916.com | www.006436.com | www.5873.org | www.ki66.com | 739053.com | 293458.com | www.797984.com | www.933068.com | www.633546.com | www.616608.com | www.373270.com | www.315923.com | www.054468.com | www.7037.vip | www.tm41.com | 671490.com | www.961420.com | www.663879.com | www.636484.com | www.406904.com | www.383309.com | www.270718.com | www.053606.com | www.5333.mobi | www.qf61.com | 692589.com | www.264618.com | www.809955.com | www.889051.com | www.603323.com | www.316761.com | www.077586.com | www.2921.win | www.h61.com | 139201.com | 026860.com | www.861705.com | www.836708.com | www.711856.com | www.585498.com | www.311666.com | www.054823.com | www.4869.cn | www.wj07.com | 583352.com | 9569.biz | www.800727.com | www.696038.com | www.377752.com | www.199857.com | www.86494.com | www.65za.com | 网易彩票www.503433.com | 易彩网www.12455d.com | 186871.com | www.871434.com | 036652.com | 971756.com | 华人彩票www.040451.com | 941699.com | www.929635.com | www.723372.com | www.501378.com | www.289068.com | www.071515.com | www.7372.loan | www.px72.com | 购彩票www.c5907.com | 428896.com | www.866452.com | www.582091.com | www.306773.com | www.040268.com | www.21982.cc | www.25jy.com | 494455.com | 013403.com | www.796480.com | www.516723.com | www.173448.com | www.32051.com | www.45pv.com | E彩堂www.9818o.cc | 967734.com | www.901701.com | www.606566.com | www.243563.com | www.68600.com | www.2781.biz | www.md69.com | 684577.com | www.986772.com | www.697965.com | www.371568.com | www.167352.com | www.035759.com | www.9261.online | www.c99.org | 685029.com | 82466.com | www.767014.com | www.460277.com | www.134733.com | www.62319.cc | www.252.cm | www.ow74.com | 502597.com | 0820.cc | www.795765.com | www.624712.com | www.671258.com | www.344367.com | www.043541.com | www.2174.win | 福彩天下www.801896.com | 924917.com | www.796156.com | www.446500.com | www.166881.com | www.186169.com | www.002316.com | www.7057.biz | www.fb47.com | 41sa.com | www.977253.com | www.653936.com | www.439951.com | www.281141.com | www.86355.cc | www.33il.com | 950772.com | 025751.com | www.787234.com | www.444897.com | www.215861.com | www.29717.cc | www.zg37.com | 366998.com | 556211.com | www.724611.com | www.358576.com | www.165559.com | www.84375.com | www.40gy.com | 152560.com | www.979257.com | www.656857.com | www.591998.com | 138540.com | www.890737.com | www.562581.com | www.208828.com | www.79922.com | www.1711.bid | 九五彩票www.959581.com | 950772.com | www.980864.com | www.631990.com | www.351139.com | www.020604.com | www.3777.live | www.cp960.com | www.6200js.com | www.942789.com | www.566659.com | www.205205.com | www.36786.cc | www.vf87.com | 429738.com | www.960740.com | www.584498.cc | www.601766.com | www.339808.com | www.028274.com | www.1487.vip | www.nm22.com | cai995.cc | www.939057.com | www.562613.com | www.174109.com | www.32981.com | www.16861.com | www.zx04.com | 549623.com | www.873930.com | www.677960.com | www.442127.com | www.099778.com | www.8667.loan | www.ng91.com | 137294.com | www.975274.com | www.713052.com | www.354418.com | www.018576.com | www.33460.com | www.4rv.com | www.289415.com | www.911558.com | www.519930.com | www.146568.com | www.82827.cc | www.11rd.com | 272745.com | 872947.com | www.755610.com | www.347062.com | www.022378.com | www.6066.biz | 500彩票www.641477.com | 113801.com | www.772120.com | www.793882.com | www.818411.com | www.698249.com | www.028368.com | www.66395.com | www.62xy.com | www.cp800.com | 79566.com | www.970435.com | www.599790.com | www.192203.com | www.65195.com | www.88uj.com | 952636.com | 873946.com | www.859972.com | www.541333.com | www.170003.com | www.040887.com | www.627.cm | 网易彩票www.506932.com | 092280.com | www.817657.com | www.520297.com | www.122526.com | www.8701.cn | www.hb28.com | 014118.com | www.830971.com | www.415577.com | www.096900.com | www.1290.cc | www.bl63.com | 6539.biz | www.702177.com | www.351744.com | www.85305.com | www.0909.pw | www.cp978.com | jh97.com | www.517338.com | www.40055.cc | 951809.com | 556388.com | www.722260.com | www.320608.com | www.82517.com | www.56bv.com | 967449.com | www.908909.cc | www.567457.com | www.165068.com | www.30454.cc | www.ln43.com | 083751.com | www.691378.com | www.307391.com | www.57095.com | www.15qs.com | 197077.com | www.860813.com | www.689230.com |