Recent content by Twinduck

For those of you who haven't read the book, it is a science fiction story in which a man named Dr Ryland Grace travels to Tau Ceti. The star is approximately 12 light years from Earth, and he got there in about 13 years, which for him was a 3 year journey. He is accelerating at 1,5g constantly...

Feature, perhaps? Maybe "effect of" or "consequence of". My first wording was "does matter create space". Second was "is space an attribute of matter." Others in this thread have made me aware that the question is poorly posed, since there is no observation or experiment we can perform to...

Got some new responses since last night. Nice. Thanks everyone for your input. When I was a kid I started learning to play the guitar. I did it by trial and error, without anyone to teach me. Not that there weren't people around who could do that. I just wasn't suceptible to it. I have...

There is no contradiction in your question. A lot of things are both green and red. I suspect you mean an object that is all one color, and that color is simultaneously green and red. Never mind the answer to that one. The question itself doesn't make sense. I take your point, though. I...

Of course it has an answer. It is a simple question. Does spacetime exist even with no mass in it? If so, how would you even know, if the only way we can perceive spacetime is by how it affects matter and energy within it? And can there be mass without spacetime? Is there a relationship...

All right. A simple answer. It still does not answer the main question though. Is spacetime an attribute of matter? As someone told me further up, even the gravitational field of a pebble is infinite. So even if "spacetime was an attribute of matter" there would be no correlation between the...

It is logical. If the term space, or spacetime, since you insist on accurate nomenclature, has no meaning outside of gravitational fields, and any material object creates a gravitational field that is directly related to its mass, there cannot be more spacetime than what the combined matter of...

As far as I know, there are estimates on the size of space that are made by measuring waves in the CMB. There are also estimates of how much matter exists in the universe. If we knew the amount of gravity all that mass produces, as well as how big the combined gravitational field would be...

The part about matter spontaneously manifesting was a hypothetical, of course. I just didn't want to involve the whole big bang scenario just yet. The difference between space "just existing" and space being an attribute of matter is pretty significant, I'd say. It seems to me that if matter...

https://einstein.stanford.edu/content/relativity/a11332.html#:~:text=General%20relativity%20tells%20us%20that,that%20creates%20the%20gravitational%20field. This seems to say that space cannot exist independently of matter, which seems to fit with the notion that matter "evokes" space. But it...

I have a question that I have been unable to find an answer to. The question is does matter "create" space? Some places I read that space "just is", and matter fills it and creates its gravitational curving. But that something "just is" is supremely unsatisfying as far as answers go. Another...

Hello. As instructed in the welcome message, I am here to introduce myself. I'm a Norwegian man in my forties with an above average interest in all kinds of science. I am youtube educated, so of course I know everything. Nah, just kidding. It is true that I am youtube "educated", so I have...