5 жыл бұрынBBC Documentary Q.E.D. - Ray of Hope (1984) Рет қаралды 1,121Things 1 1 The BBC's Q.E.D., this episode looks at lasers. The programme was broadcast on BBC 1 on the 9th May 1984. Source Betamax, 4:3 SD.Жүктеу
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