State officials are warning students and parents about a risky TikTok challenge that has surfaced in schools across Connecticut. The challenge encourages individuals to insert a conductive object into ...

For the PDF version of this article, including diagrams and/or equations, click here. In any off-line flyback converter design, it is possible that the output ...

Short circuits in the tracks, points or wiring are almost inevitable when building or operating a model railway. Although transformers for model systems must be protected against short circuits by ...