kev xav tsis zoo

Muaj qee qhov kev ua lej zoo nkauj tom qab nws tag nrho - cov kws tshawb fawb yuav tsum siv nws los nrhiav kev teeb tsa ob lub lo ntsiab muag kom lub teeb pom kev zoo li qhov uas lawv tuaj yeem nkaum qhov khoom ncaj qha tom qab lawv. Qhov kev daws teeb meem no ua haujlwm tsis yog thaum saib ncaj qha ntawm lo ntsiab muag - lub kaum sab xis ntawm 15 degrees lossis lwm qhov txaus. Nws tuaj yeem siv rau hauv tsheb kom tshem tawm qhov muag tsis pom hauv daim iav lossis hauv chav ua haujlwm, tso cai rau cov kws phais pom los ntawm lawv txhais tes.

Qhov no yog lwm qhov nyob rau hauv lub voj voog ntev ntawm kev tshwm sim txog cov yees tsis pom uas tau los rau peb hauv xyoo tas los no. Xyoo 2012, peb twb tau hnov ​​txog "Cap of Invisibility" los ntawm American Duke University. Hais txog dab tsi nws yog hais txog invisibility ntawm ib tug me me lub tog raj kheej nyob rau hauv ib feem me me ntawm lub microwave spectrum. Ib xyoo dhau los, Duke cov tub ceev xwm tau tshaj tawm txog kev siv tshuab sonar stealth uas yuav zoo li pheej hmoo hauv qee lub voj voog.

Hmoov tsis zoo, nws tsuas yog hais txog kev pom tsis pom los ntawm qee qhov kev pom thiab rau qhov txwv, uas ua rau kev siv tshuab me me. Hauv xyoo 2013, cov kws ua haujlwm tsis muaj zog ntawm Duke tau thov kom muaj 3D luam ntawv ntaus ntawv uas camouflaged ib yam khoom tso rau hauv nrog micro-qhov hauv cov qauv. Txawm li cas los, dua, qhov no tshwm sim nyob rau hauv ib tug txwv ntau yam ntawm nthwv dej thiab tsuas yog los ntawm ib tug tej yam taw tes ntawm view. Hauv cov duab luam tawm hauv online, lub kaus mom ntawm lub tuam txhab Canadian nrog lub npe ntxim nyiam Quantum Stealth zoo li pheej hmoo.

Hmoov tsis zoo, kev ua haujlwm prototypes yeej tsis tau tshwm sim, thiab tsis tau piav qhia nws ua haujlwm li cas. Lub tuam txhab hais txog cov teeb meem kev nyab xeeb raws li qhov laj thawj thiab cryptically qhia tias nws tab tom npaj cov khoom zais zais ntawm cov khoom rau cov tub rog. Peb caw koj nyeem qhov teeb meem hauv Tshuag.