American inventor and a pioneer in the fields of radio and for sound-on-film recording (Phonofilm). He is most famous for inventing the three-electrode vacuum-tube (Audion).
Nupedia, which was available in five different languages, was the precursor of Wikipedia. However, unlike the now popular online encyclopaedia, Nupedia wasn't "open" to everyone. Only selected people with expertise in their fields could write articles which were then reviewed by editors. [more...]