Learn how to crochet the elegant Solomon Knot, also known as the Lover’s Knot, for shawls and blankets. This step by step tutorial shows how to create a light, lacy edging that adds a beautiful finish ...

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Within each content area, there are one or more tutorials. Each tutorial consists of lessons. Each lesson should be a page detailing the concept being taught, along with sample code. Lesson and page ...

The Joule Thief Circuit is a simple and clever electronic design that can power an LED using a nearly dead battery.