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Quem inventou o transistor?
O transistor, que é considerado como um dos mais importantes invations do século XX e lifeplood de circuitos eletrônicos, foi encontrado em 1947. A equipe composta por John Bardeen e Walter Brtain, headod por William Shockley nos laboratórios de pesquisa da maior empresa de telefonia do mundo, as organizações Bell, foi premiado com o prêmio Nobel em 1956, devido a estes novos groundaking invations em Tecnologia que ele era digno.
Bardeen e os Brattain estavam tentando encontrar uma opção contra o thermionic Caps usado na aquisição, strengusing, e projeção de sinais de rádio e telefone. Tinha que ser uma certa quantidade de tempo para aquecer essas lâmpadas que foram rápidos para quebrar e caro. E eles estavam contratando muita eletricidade.
A equipe fez o primeiro transistor de uma camada fina de germânio. Dois dias antes do Natal às 1947, este transistor foi ligado a um circuito de rádio e Brattain escreveu as seguintes linhas em seu caderno: "este circuito realmente funciona. Devido ao nível sonoro, uma elevação perceptível foi achioed. "o transistor, assim como a lâmpada, amplifica o sinal sonoro. Mas era muito menor em tamanho e precisava de menos energia. No início, quase ninguém viveu que um dispositivo minúsculo poderia substituir aquelas lâmpadas grandes. Mas o Shockley e a sua equipa fizeram grandes enrades em quatro anos. Em 1952, o transistor foi reduzido a um décimo das dimensões originais e era muito mais forte em 1957, com 30 milhões transístores produzidos anualmente. Os desenvolvimentos nesta área ainda estão em andamento.
Em vez da camada de germânio, os cientistas começaram a usar cristais de pureza pura, que poderia suportar uma intensidade de calor muito maior. Transistores foram fabricante, que pode transmitir a corrente em tão pouco como 100 milhões segundos. Graças a estas calculadoras móveis, relógios digitais foram feitos. As lâmpadas dos receptores de rádio e televisão também substituíram os transístores. Se não for por estes dispositivos impressionantes, não seria possível ter comunicações por satélite, naves espaciais e a conquista da lua pelo homem.
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русский
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Український
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svenska
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ไทย
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việt
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Suomalainen
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