It's time for another physics example. In this case, I am going to calculate the electric field due to an electric charged rod. Of course you could do this analytically using a bit of calculus. This ...

The electrical panel, also known as the service panel, is the control center for all the electrical circuitry in a residence. Today’s panels are bigger than earlier versions. They have to be, because ...

Explanation: For the 2026 NEC, calculations were relocated to a new article 120. 416Y/120 was also added as a standard nominal voltage as it is becoming increasingly popular in industrial and ...

Mlulti-family service calculations can seem confusing, especially since you have a choice of methods — standard (Art. 220, Part II) and optional (Art. 220, Part III). But clearing up that confusion is ...

SOLAR: Solar heat gain through glass facades is among the inputs that ASHRAE Standard 183 requires engineers to model in three dimensions. June 3, 2026 Here is something I have noticed presenting at ...