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Both Ajb and I regularly discussed lie algebra. It's a very useful tool to understand physics in particular the standard model. However it's used in every major physics theory in general. I'm a little tied up atm but I will add more detail later on with regards to isospin and hypercharge.

If my lifetime lasted the length of the universe my experiences still won't be exact duplicates. As long as my surroundings change, my experiences change.

You have to distinguish total spin J=3/2 from spin projection. A particle of total spin J has 2J+1 possible spin projections. Eg, a particle of spin 1/2 has 2*(1/2)+1=2 spin projections, which are -1/2, +1/2. In the case of omegas, we have 2*3/2+1=4 possible spin projections, which are -3/2, -1/2, +1/2, and +3/2. If omegas lasted long enough, we would be able to perfom a Stern-Gerlach experiment and separate them into 4 distinct beams, I'm sure. Omega- has spin 3/2 for the reason that these are isospin multiplets, so all the particles in the n-plet have the same spin. The ultimate reason for that is the concept of approximate symmetry iso-spin='same spin'. IOW, baryons with the same spin have approximately the same mass. Exactly. I wouldn't call it S, as that's reserved for strangeness. I particle physics it's traditionally called J.

She wasn't training her replacement; she was training the customers to deal with her replacement. As the cashiers in all my grocery stores have been doing. Three years ago, when our Walmart brought in automated checkouts, there was a cashier at each of the three stations; now, there is one supervising all eight, and only three checkout counters operated by a human being. Now, two other food stores and both hardware stores have them. (Obviously, I'm one of the old diehards who stand in line as long as it takes at one of the ever-fewer checkouts with a person who draws a salary, but I know we can't hold out forever.) If there were any justice, studying for her MA in Archeology or home-schooling her children or painting landscapes, or whatever her talents and desires prompt her to do. If there isn't, she'll be on one of the social assistance programs that pay you just enough to survive, not to thrive. AI is just the latest iteration of a technological trend that started.... I suppose you can trace it all the way back to a chimpanzee picking up a stone to crack a nut. Some of us like inventing things and improving on things their predecessors invented; a few like owning the right to monetize those inventions, and the inventive people, in order to enrich themselves; some see technological innovation as a source of improved weaponry; some see the products as fresh fields for criminal activity; a great many consumers believe sufficiently in the labour- and time-saving convenience to devote many effort/hours to their acquisition. There is a cost. We don't generally think much about costs other than what comes out out of our wallets - not even to the depth of the number of hours each $ in that wallet cost us in wasted effort, commuting, frustration, humiliation, lost social opportunities, relationships, leisure, personal interests, emotional health, let alone the costs to our society, other societies, the environment, the ecology at large, etc. Most of the time, when we buy something, we have no idea what its actual cost-to-date is - and we certainly can't project it long-term cost/benefit ratio for the future. Only if you are one of the people who owned a lot of other enterprises and real estate before AI took over. Otherwise, you're out of work, on a pathetic dole from a near-bankrupt government, and can't even afford to dream of such a refrigerator or such foodstuffs. Google keeps you abreast of the latest gossip and entertainment. What you want is one of these guys. How it goes down from here depends on human decisions. Good luck with that!

Watch this space: 'A Unified pH Scale for All Phases'

English is weird and it's two hard too remember witch homonym is wich. Also, spellcheck is an asshole sometimes.

Yup. Here it is:

https://vimeo.com/340695809 https://www.youtube.com/watch?v=H9fjhQMsDW4

Was it? The Scientists: The World From Another Point of View

That's absolute laughable rubbish. They are both clearly expressing my opinion. You would have to be a bit backward, to understand it any other way because it's clearly stated that way. Backward, or deliberately nit picking for it's own sake. Of course, I'm saying it's the second. If I say, "nobody's going to want to watch blah blah blah" this is how english speaking people give an opinion in english. Of course you can come along and nit-pick on the wording and say "how do you know NOBODY will want to watch it? " . At my school, we did that for laughs until we reached our teens. I did expect more adult posting on here.