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Transistors, How do they work ?

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Transistors are one of modern society's most important inventions and are used both for amplification of electrical signals and as switches. This explains how this miracle technology works.

Using the Graphical Modeler in QGIS 3.0

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While I've written a handful of plugins in the past for QGIS, I've always wanted to learn about the graphical modeler which is a lot easier than writing all the Python by hand, especially creating the dialogs and setting up the methods yourself.