Electric Circuits in Solar Installations
Teaches about basic electric circuits. The course introduces charge, voltage, current and resistance. It's a gentle introduction with no prior knowledge required. The focus is to enable students to take part in solar installations. To understand the design of a new installation and troubleshoot an existing one.

Linux and Operating System Concepts
You'll learn a lot about Linux maintenance. This tutorial shows how to manage Linux with its most powerful tool, the Terminal. It shows different aspects of Linux step-by-step. On the way, you'll be introduced to fundamentals of computing and essential concepts found in every modern operating system.

HTML by example
Tables and Styles in HTML. It's not about theory or a gentle introduction to HTML but a simple collection of examples. Your job is to re-create the example with your own code.