Recent content by daisey

First of all, thanks to PeroK, jtbell, and Sboh for their thoughtful answers. Unfortunately over my 12 years as a member I've noticed most responses on this forum are NOT thoughtful, so this will be my last post. It appears it's not possible to delete an account here. Like I stated in my...

I guess that means the answer to my original question is: Hogwash. I thought that might be the case. I did visit Wikipedia before coming here, and it still said it was an Elementary Particle. But I thought maybe it was something newly discovered. Apparently not. Thanks for your help!

Orodruin: Thanks for asking. Let me explain in detail if you prefer. I was researching why there are sometimes more neutrons than protons in a nucleus (such as Potassium). The statement I refer to was embedded in an answer. Here is a link to the article, which I didn't post at first because...

I have no formal Physics training, just what I've read over time. And I've always read and understood that Quarks are Elementary Particles. I was reading on the web today where someone who seemed to know what he was talking about stated that Down Quarks are not really elementary particles, but...

It's not a textbook, and it is not a book on cosmology. The book is called: "Time Explained", by Michael Savins. Here is the quote from his book. "The Universe is expanding and that expansion is accelerating but at the same rate as a metre measuring rod is increasing in length. The universe...

I agree the length of a meter does not change, but only relative to the expansion of space. The universe has always been the same width in "meters". And the length of a meter always remains "the length of the path traveled by light in a vacuum in 1/299,792,458 of a second" because as space...

Then what is meant by "the scale of space itself changes" in the following sentence?: "The metric expansion of space is the increase of the distance between two distant parts of the universe with time.[1] It is an intrinsic expansion whereby the scale of space itself changes"...

Regarding the expansion of space... In one book I've read the diameter of the universe is more than 100B light years across, even though the age of the universe is only roughly 14B years old. This is due to accelerated expansion of space. In another book it says that space is expanding in a...

When you say above "when you measure", do you mean to say "when you start measuring"? Does the Quantum Zeno effect not work reliably when the observer begins taking measurements late into what is considered (I guess) the so-called half-life of the subject particle?

I've heard an interesting explanation of how the Quantum Zeno effect works, but I am still confused. Here is a summary of that explanation, as I understood it... When constant observations (or a series of observations taken at very short intervals) are made of a system in a superposition of...

I thought that somewhere I read the Electron has no intrinsic mass, but instead gains it's mass via interaction with the Higg's field. But I found no reference to this in the electron's Wikipedia definition (although it is a long article, and I might have missed it). So what is true about...

I didn't mean to misquote Einstein. When I said that Einstein "said" that about gravity, I meant via his General Theory of Relativity. Although chances are I don't completely understand that theory.

I believe what you are saying is there are multiple theories on what causes gravity. And the Graviton is not part of Einstein's General Theory of Relativity. I am only familiar (in a very general sense, at that, no pun intended) with General Relativity. I know absolutely nothing about Quantum...

My apologies - in my question I should have stated "spacetime", not "space". For those that above are saying that gravity is the curvature of spacetime, can you please give me a simplified description of what the graviton is and what part it plays in curving spacetime? Or is there no way...

I have read a number of books that claim that, according to Einstein, gravity is not a force, but instead the curvature of space caused by mass. And some of those same books then go on to refer to it as a force, mediated by the so-called undiscovered graviton. Can someone please explain if...