Do you like buses, or do you just like the flippy-flappy displays they use to show route information? Either way, you’ll probably love the flip-disc clock created by [David Plass]. The build is based ...

Discover the importance of segment margin, how it's calculated, and its impact on business performance. Learn to identify valuable segments and optimize resources.

We highlight our top five stories of 2025 based on popularity; included are a special report on reshoring, a commentary on grid inertia, and a utility case study on substations... Power quality ...