An NPN, in conjunction with a PNP and resistors, can be used to create logic gates.
The Fantasy and Sci-Fi book club offered it, and £30 book vouchers, to return to them. I have to buy 4 books off them over the next year in return. Hmm.... I'll buy my 4 and leave I think ;) See what they'll offer me next time. With a little luck I can get the Encyc of Sci-Fi too :D
But just then there was a slight altercation between Master Tommy and Master Jacky. Boys will be boys and our two twins were no exception to this golden rule.
Theſe [trees] we ſhall divide into the Greater and more Ceduous, Fruticant and Shrubby; Feras and wild; or more Civiliz'd and domeſtique; …
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