radiotarixining dastlabki davri
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radiotarixining dastlabki davri radiotarixining dastlabki davri presented by: mahmudova marjona reja: kirish – radio tushunchasi va uning ahamiyati jeyms klerk maksvell – elektromagnetizm nazariyasining yaratilishi genrix rudolf gerts – elektromagnit to‘lqinlarning isboti oliver lodj – “koherer” detektori va gerts to‘lqinlarining tajribasi pyotr lebedev va jagadish chandra bose – mikroto‘lqinli tajribalar va yangi ixtirolar guglielmo markoni – birinchi radio stansiyalar va transatlantik aloqa xulosa – radio ixtirosining insoniyatga ta’siri radio — bu elektromagnit to‘lqinlar yordamida ma’lumot uzatish va qabul qilish tizimi. uning tarixi simlarsiz telegrafiya (wireless telegraphy) sifatida boshlangan. dastlab ilmiy tajribalar uchun ishlatilgan bo‘lsa, keyinchalik eshittirish (broadcasting)...
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