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Sautin ruwa mai narkewa daga famfo

Kwanan masana kimiyyar sun magance wasanin ban mamaki a baya ɗaya daga cikin mafi ban sha'awa da fushi na sauti: Sautin ruwa mai narkewa. M, Sun kuma sami sauki mafi sauƙi don dakatar dashi, kuma yawancinmu sun gano cewa mafita a cikin kitchens. Masana masana kimiyya sun magance matsalar wasan kwaikwayo a bayan daya daga cikin mafi ban sha'awa da haushi sauti: Sautin ruwa mai narkewa. M, Sun kuma sami sauki mafi sauƙi don dakatar dashi, kuma yawancinmu sun gano cewa mafita a cikin kitchens. Amfani da kyamaran mai zazzagewa da Hanyoyin Kulawa na zamani, Masu bincike a Jami'ar Cambridge sun gano cewa “hantsi, hantsi” Sauti da aka samar lokacin da ruwa ya buge da saman ruwa a saman ruwa ba sa haifar da sauke kanta, Amma ta hanyar girgiza kananan kumfa da aka kama a ƙarƙashin ruwa. Da kumfa suna tilasta saman ruwa don tsoratar da kanta, Tuki da iska mai iska kamar piston. Bugu da kari, Masu binciken sun gano cewa suna canza tashin hankali, kamarara sabulu, na iya toshe sautin. An buga binciken a cikin rahoton ilimin kimiyya. Kodayake mutane sun farkar da mutane zuwa tsararrun ruwa daga ruwan sanyi ko rufin, ainihin tushen sauti bai taba san. Dr Anurag Agarwal na Jami'ar Ma'aikatar Injiniyan, Wanene ya jagoranci binciken, in ji: “Da yawa da aka yi akan kimiyyar ruwa, Amma ba a yi abubuwa da yawa a cikin sauti ba. “Amma godiya ga bidiyo na zamani da fasahar sauti, A ƙarshe mun iya nuna tushen sauti, wanda zai iya taimaka mana mu dakatar da shi. "Agarry shine shugaban limustics din da mai bincike a Kwalejin Emmanuel, wanda ya fara yin bincike game da matsalar lokacin da ya ziyarci wani aboki wanda ya sami karamin yadudduka a rufinsa. Nazarin Agarwalcs da Aerodynamics na Aerospace, Kayan kayan gida da aikace-aikacen dabbobi. Ya ce: Lokacin da na farka da sauti na ruwa, Na fara tunani game da shi. “Rana mai zuwa, Na tattauna batun tare da abokina kuma wani malamin ziyarar, Kuma mun kasance muna mamakin cewa babu wanda ya amsa dalilin muryar. "Agawal hadin kai tare da DR. Peter jordan daga Jami'ar Poitiers (wanda ya kashe lokaci a Cambridge ta hanyar tattaunawar ta Emmanuel) Kuma Babban Phillips a kan gwaji don yin nazarin matsalar. Na'urar su tana amfani da kyamarar mai sauri, makirufo da hydrophone don rikodin ruwa da ruwa da suka fada cikin tanki. Ruwa na ruwa sun zama tushen son sani ga al'ummar kimiyya fiye da ƙarni: da farko hotunan ruwa na ruwa da aka buga a ciki 1908, Kuma tun daga baya masana kimiyya sun yi gwagwarmaya don nemo tushen sauti. Da hydrodnamics na ruwa droplets yana jan ruwa mai sanannen ruwa sosai: Lokacin da ruwa ya zube, Yana haifar da ƙirƙirar rami, wanda boyos baya da sauri saboda tashin hankali na ruwa, haifar da shafi na ruwa ya tashi. Da rami ya sake farfadowa da sauri bayan droplet ya buge, haifar da karancin kumfa don zama cikin rami a karkashin ruwa. Karatun da suka gabata na tunanin cewa “Yiwuwa” Sauti yana faruwa ne ta hanyar tasirin kanta, Resonance maimaitawa ko filin sauti mai santsi ya yadu ta hanyar ruwa, amma wannan ba zai iya tabbatar da wannan ba. Masu bincike a Jami'ar Cambridge samu a gwaje-gwajen su cewa, da ɗan abin da ke faruwa, farkon splash, da samuwar rami kuma an gyara ruwa sosai yadda ya kamata. Tushen sauti shine kumfa. Phillips, Yanzu dalibi na PhD a cikin Sashen Injiniyan, in ji: “Amfani da kyamarar mai saurin gudu da kuma makiriya mai hankali, Mun sami damar kiyaye oscillations na kumfa a karon farko, Nuna cewa kumfa sune manyan direban ruwa na ruwa da kuma na musamman 'Clink’ sauti a kan jirgin. “Duk da haka, sauti a cikin iska ba kawai filin sauti mai kyau bane wanda ke yaduwa ga farfajiya, Kamar yadda aka yi tunani a baya, Domin “tushe” ya zama mai mahimmanci, Bubbles iska masu tarko suna buƙatar kusa da kasan kogin ya haifar da tasirin faɗuwar. Kumfa sannan fitar da oscillation na saman ruwa a kasan kogon, Kamar piston aika raƙuman sauti a cikin iska. Wannan shine mafi inganci inji ta hanyar wacce ruwa ke fitar da filin sauti na iska fiye da yadda aka ba da shawarar a baya. Dangane da masu binciken, yayin da aka gudanar da binciken daga cikin tsarkakakken son sani, Ana iya amfani da sakamakon don haɓaka ingantattun hanyoyi don auna ruwan sama, ko kuma ci gaba da tabbatar da sautunan roba don ɗigon ruwa ko fina-finai, wanda har yanzu ba a fahimci shi ba.

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