. Radio, miracle of the 20th century ... a story of human achievement that stands unrivalled in the history of humanity, together with a colorful portrayal, giving a broad, general view of the whole subject of wireless telegraph and telephone and its marvelous development . al on the gridattracts the electrons and these fly past the grid to theplate. An increase of suction at C gives an increased flowof flour through P, in the same way as an increased po-tential on the grid causes an increased current of elec-tricity through the plate circuit. If the suction at C ismade strong enough, however,
. Radio, miracle of the 20th century ... a story of human achievement that stands unrivalled in the history of humanity, together with a colorful portrayal, giving a broad, general view of the whole subject of wireless telegraph and telephone and its marvelous development . al on the gridattracts the electrons and these fly past the grid to theplate. An increase of suction at C gives an increased flowof flour through P, in the same way as an increased po-tential on the grid causes an increased current of elec-tricity through the plate circuit. If the suction at C ismade strong enough, however, the particles of flour aresucked with such force that, instead of flying past the MIRACLE OF THE AGE 289 openings at G, they are drawn from their straight pathand made to enter them. They do not get to P and hencethe flow to the plate is decreased. In the same way plac-ing too great a potential on the grid causes the electronsto fly to the grid instead of the plate, and hence the platecurrent is decreased at such high potential of the versing the pump at C has the same effect of stoppingthe flow of flour as reversing the pump at B. If the pumpC were reversed so that it acted as a blower it would tendto prevent any flour passing from F to P, as it would tend. Plate Qgrfrf 300 Vo/t* on Plate Gr,J Current
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Keywords: ., bookcentury1900, bookdecade1920, bookidradiomiracle, bookyear1922
