joigus

Agreed. And I'm pretty peevish myself.

Exactly what I was thinking, besides the volume thing.

If you know your neighbour's address, there's knowledge. Whether you decide to send them a love letter or a card bomb is up to you. Atomic energy destroyed life in 1945. It created tension between superpowers. But it's been saving lives on a daily basis ever since, and allowed many other nice things.

I totally concur with @swansont that entropy can never decrease in closed systems, and the next best thing is a system that keeps it constant, which is what this system seems to be. I assume --and correct me if I'm wrong, Swansont-- that the moment you wanted to amplify the signal or involve any circuitry in any way, the constant-entropy condition would be lost. I suppose it would be like a phenomenally efficient chronometer, rather than your regular timepiece.

Certainly Australia's landscape is unique. Uluru is of such beauty... I know you like docos, as you say. I remember Australia's first Four Billion Years. One of the geographical features that most impressed me was the McDonnell Ranges. Because this mountain system formed so early, erosion has eaten away even the highest mountains. At some point it looks like the skeleton of a gigantic beast. It's one of the most strangely wonderful geological features I've ever seen.

People uniting for a good cause is devoutly to be wished... sometimes. For a good cause. Your example is a good cause, as the goal is to thwart violence. But it's got me thinking. The Khmer Rouge were strongly united, when you think about it. It seems to me unison per se is not necessarily good. I think we've missed that possibility in our discussion. So, when is unison a good thing?

An electron doesn't change spin because the other has changed spin. There's no such thing as the electron changing its spin. It's more like the electron potentially being able to produce either + or - as a result of the measurement. Pick one projection of spin; say z-projection for electron (1). Now measure its value. It can give either +1/2 or -1/2. If it gives +1/2, and you measure the same projection of spin on the other, you know with absolute certainty it will produce -1/2. And vice versa. But you can't chose electron (1) to have any projection you want. This is key. If you could, you would be able to code a word in binary; say X=00101011010111 and have a person placed where electron (2) is, read the message and write down 11010100101000 (the opposite word). If you could do that, you would be able to send the word X. But you can't. You can only send random words, but those are not messages. Also, the correlations are initial. When you prepare a singlet state \( \left|+\right\rangle \left|-\right\rangle -\left|-\right\rangle \left|+\right\rangle \), all the correlations are initial. All the correlations are already there from the beginning. So nothing is sent instantly.

When you think about it, that could be anything.

I know. I wasn't going for a complete list. Pity he had to go to Russia to show his talent, as there was no academic position for him in Basel. He did some sick things with infinite power series. Please, try to use the quote function; it's easier to guess when you're addressing me. By the way, nobody mentioned tourism, banking, cheese or chocolate. My whole point is that trying to shoehorn a country like the US into the pot of cliches that you just did is about as silly and misguided as trying to shoehorn Switzerland into a similar list of Swiss cliches. Do we understand each other now?

Ah, yes. I remember about this one. Nice.

Not exactly. That's proof that Harry Lime didn't know about the Bernoulli family of mathematicians --and many other things like: Velcro The Swiss army knife Muesli ... https://www.thelocal.ch/20180822/what-a-trip-eight-great-swiss-inventions/ Maybe Harry Lime didn't appreciate mathematics, or never had a use for Velcro.

There you are. Music is another thing that unites people. I wasn't familiar with the Wreck of the Edmund Fitzgerald song. I like music with a story. When a tune lives on for generations there's always an important reason behind. Music has the potential to unite people from different centuries. What about that? Ditto.

I would like to take the opportunity to welcome you and @Peterkin to the forums. Both of you are very welcome 'acquisitions'. This is one of those topics in which I don't have a very strong opinion, but yes. Focus on the show-business part without any emphasis on sport for everyone, is kind of the obvious 'dark side' of sports. In a manner of speaking, it's about praising Titmus for her feat, while saving Russell Crowe from heart disease. And I love Australia, by the way. I have Waltzing Matilda committed to memory.

Interesting related point in interesting article: https://www.theguardian.com/commentisfree/2021/jul/24/tokyo-olympic-sport-displacing-athletes David Goldblatt IOW: I'd rather see more people cycling to work than eating cheetos in front of the TV while they watch the Tour de France.

I do. You look young & rugged, @J.C.MacSwell looks young & smart, and @beecee looks ageless & 'iconic'. I can't say I didn't expect Weinberg's passing one of these days, but it makes me feel older suddenly anyway.

Pity even.

Read all the answers, because they're very helpful. Make a drawing with @TheVat's hints. The June-December clue gives you a baseline. Remember your trigonometry.

Awesome book. Totally compliant with Einstein's alleged* motto 'as simple as possible, but not any simpler'. The Making of... might be worth checking out. *https://www.nature.com/articles/d41586-018-05004-4

Pitty. You have never disappointed. 👍

Hyperbolic functions. It's done in relativity all the time. Whistle if you need more help. Clues: Rescale x and y; then assign hyperbolic cosine (cosh) and sine (sinh). z goes along for the ride.

He was. He didn't have the aura of genius that others have accrued perhaps, but nudged physics into common sense many times.

https://www.washingtonpost.com/local/obituaries/steven-weinberg-nobel-winning-physicist-who-united-principal-forces-of-nature-dies-at-88/2021/07/26/75d8d24a-ee31-11eb-bf80-e3877d9c5f06_story.html Nobel-Prize-winning Steven Weinberg dies at 88. One of the makers of the standard model. His influence in the world of physics in the second half of the 20th century has been only comparable to that of giants as Feynman, Gell-Mann, and 't Hooft. His books Dreams of a Final Theory and The First Three Minutes are a must-read for anybody willing to understand physics and how physicists think. He was notorious for his view of a universe without a purpose. May he rest in peace.

May be relevant to the discussion: http://www.olympedia.org/lists/55/manual https://www.insider.com/michael-phelps-weight-of-gold-olympians-suicide-depression-epidemic-2020-7 I'm not suggesting that these sources can be taken as particularly rigorous, or that any conclusions should be immediately drawn. Depression seems to be very common among elite sportspeople, whether successful in their careers or not. But upon first inspection, it doesn't seem that successful sportspeople are spared a lot of this alleged suffering. Gold medalist Jesús Rollán was a case very much debated in Spain 15 years ago: I haven't made up my mind on this topic. If I wanted to give an idea of what I think it would be a collage of sentences by other members. I agree with some points by @Peterkin and @Prometheus, but I'm not blind to the fact that sports have many positive values, aesthetic included, mainly represented by @beecee. I suppose it's one of those things that can make you or break you.

Unfortunately one's only covered for a colonoscopy.

As you posted this question in the Quantum Theory section, I'm going to assume you're pitching it at consequences of the holographic principle for human experience. Unfortunately there are none that we can discern so far. It is too fundamental, and at the same time too poorly understood, for anybody to be able to draw any conclusions for consciousness or any other presumably emergent phenomena (big clusters of matter doing something collectively). 'The universe is a hologram' is a catchphrase for a deep physical principle that is in the process of being understood. There is no direct connection to the double-slit experiment either. The connection may be more elaborate: quantum fluctuations being related to gravitational entropy.