Project management, specifically the importance of not being a bottleneck.
It's not a very good pun.
A good pun would present, on the surface, a deeper knowledge of the (admittedly complex) material.
"I know a place
Where you're all going to go
They'll pay you to kill
If You're eighteen years old
First You'll need a haircut
And then some new clothes
They'll stick you in a jungle
To play G.I. Joe
CHORUS:
You fight for democracy
And the "American Way"
But you're not in your country
"What am I doing here?" you say
But now it's too late
You're entering Managua
If you had brought your surfboard
You could surf Nicaragua
CSS/JavaScript/HTML5 is plainly obvious. Everything from Microsoft to mobile hybrid development relies on this these days.
C# is the standard language of the Microsoft stack --- in fact, the bulk of MS-stack training is in C#, with only a smattering in VB.NET.
Java is the COBOL of the early 21st Century. It isn't sexy anymore but it will always be around.
PHP is used in a lot of web applications. I wish it weren't. In fact, I'd really rather see Ruby on Rails take over this space.
If you're going to program native code, you could learn Swift, sure. You could also learn Rust (Mozilla's systems-level language with significant buy-in from Samsung) for device programming. If your goal is to write native apps, your best bet for Android is actually Java. By the way, one can also design native apps in Java (the code is Swing-like) and compile them to native apps for iOS or Android using Codename One, and I imagine a few shops will pick up that practice.
I like Erlang as an honorable mention. I'd also add two others: Python (especially for data analysis) and PowerShell (which will set the grown-up Microsoft sysadmins from the point-and-click kids).
It sounds like this transformer had its center tap grounded and was the path to ground on one side of a ground loop as the geomagnetic field moved under pressure from a CME, inducing a common-mode current in the long-distance power line. A gas pipeline in an area of poor ground conductivity in Russia was also destroyed, it is said, resulting in 500 deaths.
One can protect against this phenomenon by use of common-mode breakers and perhaps even overheat breakers. The system will not stay up but nor will it be destroyed. This is a high-current rather than high-voltage phenomenon and thus the various methods used to dissipate lightning currents might not be effective.
"The one charm of marriage is that it makes a life of deception a neccessity." - Oscar Wilde