Student "edition" found at {csi dot journalspace dot com}.

Maybe I shouldn't have started this blog now, not with everything that's been going on.

In the first meeting of my Energy Conversion lecture class, there was only one student present.

We waited there for around fifteen minutes before I told her that I would be returning to the faculty room.

All her other classmates, engineering fourth year students all, had gone off campus for lunch.

It was, after all, a 1pm Class in the first week of classes, when other teachers were dismissing their students early after discussing their class policies for a few minutes.

I knew the students would be calling for me when they returned, but I wasn't planning to meet them anymore that day. Just as well, it turned out, because they went to the faculty room more than an hour after the class would have started.

And there were those who were insisting they were only five minutes late, and that all that time they were just in the classroom waiting. I know the truth is otherwise.

I also tried to change the room to the one that is nearer the engineering faculty room, but what I didn't see is that there is a Monday-Wednesday class that meets there at that time, so I can't use the room on Mondays and Thursdays.

On the second meeting, not only are the students there when I arrived, but the class size had swelled by more than half, since one of my co-teachers had moved the schedule of another lab class that was in conflict with my lab class, thus allowing for some irregulars to enroll in both. Just like in my Engineering Materials Science class a year ago, this class is now a mixture of fourth year regulars and irregulars, minus a certain student. In fact, this class only occupies the first two rows of the room, not all the rows like that other class.

For the first lecture I reviewed them on the equation for electrical power for alternating current networks.

This includes equations for voltage and current with angular velocity, and thus may have their own phase shifts.

Using a trigonometric identity we were able to simplify the equation, relate maximum values with effective values (also known as root-mean-square values), and apply them to ideal resistive, inductive and capacitive circuits with either the current phase shift leading the voltage or vice versa, or neither.

Then i gave them a refresher on the operations of complex numbers.

Session 1645 sees no consequence in showing up late for class. Class dismissed.