Jaime Rudas's latest activity
-
Jaime Rudas replied to the thread I Topic about physics axioms, theory, laws etc...Westminster Abbey -
Jaime Rudas replied to the thread I Topic about physics axioms, theory, laws etc...In one sense, they are postulates of physical theories, which are logical systems. In another sense, they are factual hypotheses that...
-
Jaime Rudas replied to the thread I Topic about physics axioms, theory, laws etc...Yes, in the sense that we can differentiate between two types of truth: logical truth and factual truth. In a given logical system...
-
Jaime Rudas replied to the thread I No symmetries in the Universe at the Big Bang...?.Regarding whether inflation can or cannot be eternal in the past, I found this paper by Leonard Suskind where he discusses the topic...
-
Jaime Rudas reacted to PeterDonis's post in the thread I No symmetries in the Universe at the Big Bang...? with
Like.
No, one can't conclude that. Every geodesic still has a finite extension into the past--it's just that you can never find a geodesic... -
Jaime Rudas replied to the thread I No symmetries in the Universe at the Big Bang...?.In this paper, I interpret Adrei Linde as saying yes, but no, referring to the BGV theorem: Is this reasoning correct? Isn't it...
-
Jaime Rudas replied to the thread I No symmetries in the Universe at the Big Bang...?.In this regard, I found that, under reasonable assumptions, the Borde-Guth-Vilenkin theorem demonstrates that inflationary cosmological...
-
Jaime Rudas replied to the thread I No symmetries in the Universe at the Big Bang...?.Do you have a reference that supports this? I ask this because, as I understand it, Alan Guth's eternal inflation model doesn't extend...
-
Jaime Rudas reacted to Luis's post in the thread B A question about warp bubbles and navigation with
Agree.
I don't remember. Over the years, I've read quite a lot of things about Alcubierre’s theories, and it's impossible for me to remember... -
Jaime Rudas replied to the thread B A question about warp bubbles and navigation.Yes, that's true, but one could also take into account that Alcubierre himself, in his original paper, specifically mentions the science...
-
Jaime Rudas replied to the thread B A question about warp bubbles and navigation.I'll try to correct my argument: the ship is at the center of the bubble, whose radius is R. Signals emitted from the ship in any...
-
Jaime Rudas replied to the thread B A question about warp bubbles and navigation.In fact, the central idea of the bubble is that everything inside it remains in its center, that is, it doesn't 'move'.
-
Jaime Rudas replied to the thread B A question about warp bubbles and navigation.Signals can be sent from inside the bubble in any direction and will always pass through. Furthermore, any signal emitted in the...
-
Jaime Rudas reacted to Dale's post in the thread B Does the gravitational distortion of mass still exist in the past? with Like.
Again, objects are not 3D, they are 4D. And in 4D every object occupies every t from the object’s creation to its destruction.
-
Jaime Rudas replied to the thread B Does the gravitational distortion of mass still exist in the past?.As @Dale rightly points out, our planet is 4 dimensional, not 3 dimensional. The above implies that if at time ##t_1## the Earth is...