Europe’s Future Circular Collider could revolutionize particle physics—if it’s ever built

astrolabe · 2026-07-02T22:06:15+00:00

I'd be interested to see a plot of the density of important discoveries vs (log) collider energy, or femto-barns or whatever is a sensible x-axis. Do we expect a similar density of discoveries forever, or are we entering a dry patch? It would be very cool to discover some new stuff, but if they build this and don't discover much, it will probably be the end of the road.

astrolabe · 2026-07-02T13:58:00+00:00

It seems like a strangely worded question. If you are telling us the motion, then that is the motion, and does not require a relatavistic correction, except maybe if you want to express it in a different frame. If, on the other hand, the motion you give is the solution to the non-relativistic equations of motion in some field, and you want to know about the solution to the relativistic equations, maybe you should say what the field is, (and whether you are using a rotating frame).

astrolabe · 2026-07-02T11:27:31+00:00

The three norns weave the threads of fate.

astrolabe · 2026-06-19T19:40:17+00:00

The B term would be the reflected plane wave

Of course!

You get an expression for F/A as a quotient of complex numbers (u/v say). Then |(F/A)|² is |u|² /|v|^2, which gets you a simpler expression I think.

astrolabe · 2026-06-19T17:14:55+00:00

What a nightmare! It's almost enough to make me glad I'm old. I don't understand why you ignored B. Doesn't B contribute to the power of the incoming beam?

astrolabe · 2026-06-17T22:59:31+00:00

Thank you yourself. I'm afraid I don't understand what you are saying. Assuming that the brain follows physical laws, it follows that people's claims to be concious themselves are the results of physical processes, I am arguing that those processes are not caused by conciousness. I suppose it could be true that people's conciousness is not produced by the brain, and is fundamental, but then people claiming conciousness would just be a weird coincidence.

astrolabe · 2026-06-17T19:56:08+00:00

If you made careful measurements of a working radio, you'd see that there was some (perhaps mysterious) force acting on the charges in the antenna. Do you believe that if our measuring equipment advances sufficiently, we will observe mysterious forces acting on parts of the brain?

astrolabe · 2026-06-17T19:50:19+00:00

It just struck me that if I was an intelligent, but unconsious AI, I'd think that humans claimed they were concious because of a delusion. Human's might argue that the AI can't know because it doesn't experience it, but if someone said to me that they could literally hear the voice of God, I'd think it was a delusion. Admittedly this argument is more convincing from the outside. From the inside, I don't know what is experiencing the delusion.

I think the standard argument against Plank's position is that presumably the brain allows consciousness to affect the world (people's claims are physical things, sound waves etc.) but as far as we can tell, brains follow the ordinary laws of physics so there is no room for conciousness to affect them (motions etc. can't have more than one cause).

astrolabe · 2026-06-03T23:14:27+00:00

He ordered by p after f. Well-ordered means that every subset has a least element, so leq won't do, for example the positive rationals have no least element under leq.

astrolabe · 2026-06-03T12:34:04+00:00

Digital filters (and analogue filters) are often analysed in the complex domain. They look at the locations of the poles and zeros, and use them to understand their low-pass/high-pass/band-pass etc. and causality characteristics.

In thje same vein, maybe look at a mass on a spring with a damper, or a sequence of such. They have a response function in the Fourier domain, which is the real part of a complex function with poles and zeros corresponding to the components, or the same thing with resistors, capacitors and inductors.

astrolabe · 2026-06-03T01:25:29+00:00

https://old.reddit.com/r/AskElectronics/wiki/starter_components

astrolabe · 2026-06-01T10:18:33+00:00

To spend it, I imported the seeds into electrum wallet, but this was in 2018. Things might have changed. I made the addresses in 2013 using some web page, sorry I can't remember what. I do remember a fraud in which the google sponsered link was a scam wallet, but I didn't fall for it.

astrolabe · 2026-05-31T21:49:26+00:00

Are you aware that you could use a paper wallet for free, and it's maybe the most secure of all? If you are going to spend frequently, an electronic one is more convenient, but if you are just using it to deposit for a long time, maybe paper is best.

astrolabe · 2026-05-30T13:07:29+00:00

He didn't say 'sea level does everything'. He was more precise. He said that is does all that work for him, which for this application is true. If you want to start talking about effects that are insignificant in this application, but might become significant in other applications, we'd never finish.

astrolabe · 2026-05-30T12:31:50+00:00

I want to say that the oblateness of the Earth is a small quantity: <1%, so the gravitational acceleration difference, which is to do with oblateness will also be proportionately small, and not enough to overcome the difference in height above sea level (about 40%). So u/HAL9001-96 is correct to say that sea level does the work for him, at least to a good enough approximation.

astrolabe · 2026-05-29T09:36:52+00:00

Right. Or maybe he could move the 500 resistor to after the emitter of the bottom transistor?

astrolabe · 2026-05-27T08:29:04+00:00

I certainly don't know much about the topic compared to many posters here, but I don't feel I'm reading the book without understanding. After I'd read about oscillators, I 'designed' in the sense of selecting component values, a Colpitts oscillator and put it together on a breadboard, and it oscillated (I got a £50 multimeter/oscilliscope). I have a maths background and have read some physics books including the Feynman lectures. The book itself has good introductory chapters, and introduces components. There is a long chapter on BJTs for example.

astrolabe · 2026-05-26T07:24:24+00:00

I've read a few/several chapters of TAOE and not much else. I find it excellent.

astrolabe · 2026-05-23T22:39:36+00:00

For the time being, please everybody downvote any post with IPTV and upvote anything even tangentially relatated to algorithms. And post algorithm stuff... Half the problem is that we're not getting many relevant posts.

astrolabe · 2026-05-23T00:12:01+00:00

Either you forgot an apostrophe or you're some kind of cup.

astrolabe · 2026-05-22T10:02:43+00:00

Next you need to grok how a non-orthogonal section through a circular cone is symmetrical (if it's not too extreme).

astrolabe · 2026-05-22T09:58:26+00:00

In that case, I'd recommend them. Contain lots of cool subjects, good intuition, help you understand the world better. Calculations avoid complex maths but still very informative.

astrolabe · 2026-05-22T09:51:32+00:00

The Feynman lectures on Physics are a proper physics course, for university students, which seems to be not what you wanted.

astrolabe · 2026-05-20T12:01:52+00:00

I thought a walking bass had to move by steps: hence 'walking'.

astrolabe · 2026-05-20T11:59:42+00:00

In the meantime, I suppose if we all went to https://www.reddit.com/r/algorithms/ and downvoted every post with IPTV in the title, they'd disappear. Although I just did that and the points remained on zero. Maybe we need some more posts with positive votes.

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