Genady

Somebody just went to an old thread and marked -1 four of my posts in a row: starting with this one: I am very curious, what makes these posts deserving negs. And why extra image appears in my post when viewed in the activity lists? Here, the "IMG Lifestyle" image:

I understand 'emergence' in the same way. I think of this emergence as a result of averaging uncountable local changes in curvature, expansions and contractions caused by dynamics of local mass-energy inhomogeneities. On the large scales where these inhomogeneities become 'invisible', the net effect of all these local effects becomes uniform expansion of space.

These need to be considered separately. Vacuum energy is not a model of expansion. GR alone models expansion. Vacuum energy models acceleration of expansion. And in fact, effect of vacuum energy on the cosmological scales would be acceleration of expansion while on lab scales it is something else, an extra repulsion unrelated to any expansion.

The answers are here: Simple harmonic motion - Wikipedia

On page 4 of Gravitation by MTW I read, Here seems to be a mistake. Although motion, or more generally, causality is local, there exists other physics, which is non-local. This 'jump' from motion to physics seems wrong. Was such a 'jump' Einstein's mistake?

I have trouble doing this. Dimensions (mathsisfun.com)

It had nothing to do with faith.

I think that the biological nature of our existence requires us to be alive. The other three natures, i.e., the physical, the chemical, and the social, do not.

Would it be correct to say that cosmological expansion is an emergent property? I think so because it appears only on scales of hundreds of megaparsecs where the space becomes homogeneous and isotropic on average.

I've it added to my favorites!

This is right for this thread.

I wrote in Papiamentu. Japanese?

I know. That was my point. What I wrote says, "Everyone can translate that, but can you translate this?"

Tur hende por tradusi e, ma por bo tradusi esaki?

Thank you very much! Your review is very helpful. Both aspects - what the book offers and what it does not - are positive for me, because I am interested in ideas and fundamentals rather than in techniques. I am going to have this book, the 2023 edition, and will enjoy studying it. Cheers.

"... the whole numbers must at the same time be more numerous and equally numerous with the squares ..." Just wanted to note that the whole numbers can also be at the same time less numerous than the squares.

What is the nature of our existence? Assuming that our means humans', our existence has physical, chemical, biological, and social natures.

One of my favorites from the local bakery, which is called "Real Dutch Bakery", is Oberländer. It's a sourdough bread. I don't know if they do it exactly like in this recipe, but it looks similar: Oberländer Bread | Yeast and more (hefe-und-mehr.de) Two of my favorites of all times that I cannot get anywhere else in the world are New York bagels from Brooklyn and pita breads from Arabs in Bethlehem.

This is exactly my point. I love bread. But I never buy it in a supermarket. I get one or two kinds directly from a small local bakery.

That was one of my first "jobs" in my astronomy club, when I was about 9. To manually follow a star with a telescope for a long exposure picture.

We aren't evolved to eat rice, corn, potatoes, squash, banana, olives, cereal, sheep, cheese, ... Maybe we don't need to be evolved to eat something?

I think it's bad science. One can make a lot of other guesses on why they avoided the gap. For example, they knew that it is easier to stay on a flat surface.

"If he had only stuck to math he would not have gotten into trouble with the Pope. There's a lesson in there somewhere." Also, if he had only stuck to strength of materials he would not have gotten into trouble with the Pope. Galileo's Beam Experiment (lindahall.org)

Sorry. Too lazy to cancel.

I give you -1 for putting this thread in a Science forum. I promise to cancel this -1 if you can justify that.