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Dècada Del 1140

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Dècada del 1130

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Dècada del 1150

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Sjabloon:NatuurkundeAVDW 41

De Nipkowschijf is in 1883 bedacht door de Duitse ingenieur Paul Nipkow en vormde de basis voor wat hij zijn elektrische telescoop noemde. In 1885 kreeg hij hiervoor een octrooi. Deze uitvinding wordt gezien als de eerste aanzet tot de televisie zoals we die nu kennen. De Nipkowschijf was een snel ronddraaiende platte schijf waarin kleine gaatjes waren aangebracht in een spiraalvormig patroon. Het licht dat door de gaatjes in de Nipkowschijf viel, kon met behulp van een fotocel (selenium-cellen) worden omgezet in een elektrisch signaal.

gry tapety wygaszacze gry Hotele w Rzym sylwester w górach zujer










































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