Acceleration is done by RF power : the magnetic fields bends the particles round the ring, and focusses the beams (yes, that is an acceleration, but ramping up to the TeVs is RF)

Most of the UK is SI now. Road signs still use miles and you can get two metres of two-by-four but it's liable to be 5cm by 10cm, whatever it's called. And asking for a kilo of tomatoes got me 'That's two pounds, sir, and f*ck the French'

London to Perpignan a year ago was easy, a reasonable price (with a small child in tow I wouldn't fly PlummetAir) and maybe an hour or two longer, given end effects.
It was also fun; and a hugely enjoyable holiday wasn't darkened at the end by the thought of a miserable battle through the airports.

>> That's not to say that C++ isn't important. It is, because of its widespread adoption. It is baroque, however.
I beg to differ. It is byzantine. Or perhaps gothic.
Whatever, it ain't post-modern.

And do it. There's plenty of FOSS projects who could do with some help. When you've got a job to do, you'll get the idea of what tools to use.
Maybe it's kernel, maybe it's AJAX. Find the job and then find the tools. If you're any good, a new language will give you a week of pure panic followed by....oh, I get this....
My nightmare has been people who had deep, even obsessive, knowledge of X, X++ and Z-- and little ability to analyse the problem in the first place.
From PDP assembler to Javascript and Java, it's how to find the appropriate 'ammer, not being a pin-hammer specialist.
Except Cobol, of course. You're safe there.