timmdeeg's latest activity
-
Ttimmdeeg reacted to PeterDonis's post in the thread I I don't see how a black hole's event horizon can be crossed with
Like.
No, that's not the two spacetimes. Both of the things you describe are true in the same spacetime--the "eternal" black hole spacetime... -
Ttimmdeeg replied to the thread I I don't see how a black hole's event horizon can be crossed.Agreed. My comment is related to the title of the Thread, not to Black holes evaporation, which makes things more complicated.
-
Ttimmdeeg replied to the thread I I don't see how a black hole's event horizon can be crossed.Isn't the core of all these posts that these two spacetimes, the one where something crosses the event horizon in its proper time and...
-
Ttimmdeeg reacted to PeterDonis's post in the thread B Matter density right after the decoupling with Like.
Yes. Because plasma doesn't work like air. Even at such extremely low density, it interacts strongly with light.
-
Ttimmdeeg reacted to collinsmark's post in the thread Our Beautiful Universe - Photos and Videos with Like.
Have you tried flat frame calibration? I'm a stickler for flats. Every deep sky image I've ever posted here I've processed with flat...
-
Ttimmdeeg reacted to collinsmark's post in the thread Our Beautiful Universe - Photos and Videos with Like.
Here's an image I captured last Tuesday night [Edit: actually, Monday night/Tuesday morning], a little less than a week before...
-
Ttimmdeeg reacted to Andy Resnick's post in the thread Our Beautiful Universe - Photos and Videos with Like.
I had to get up pretty early for these: Taken @ 800mm (f/8), these are about 1:2 or 1:3 downsized. Upper image @ 1/60s ISO 200...
-
Ttimmdeeg reacted to PeterDonis's post in the thread I Gravitational self-interaction: another attempt to replace Dark Matter with Like.
I'm not sure I said that. A sufficiently accurate numerical simulation (i.e., one that included all of the terms whose magnitude is...
-
Ttimmdeeg replied to the thread I Gravitational self-interaction: another attempt to replace Dark Matter.Thank you for your helpful comments, as always.
-
Ttimmdeeg reacted to PeterDonis's post in the thread I Gravitational self-interaction: another attempt to replace Dark Matter with Like.
It is. On an initial read this paper looks like nothing more than handwaving. That's the general opinion that Deur's work was trying to...
-
Ttimmdeeg replied to the thread I Gravitational self-interaction: another attempt to replace Dark Matter.So quite fruitless. If I remember correctly you stated somewhere here some time ago that only an exact solution of the EFE modelling a...
-
Ttimmdeeg reacted to renormalize's post in the thread I Gravitational self-interaction: another attempt to replace Dark Matter with Like.
Having not read this paper I offer no opinion on its physics content. But with regard to its "seriosity" I will just point out that...
-
Ttimmdeeg replied to the thread I Gravitational self-interaction: another attempt to replace Dark Matter.Ok, thanks. So one could conclude that the physical content isn't very convincing. Or people don't read it at all because field...
-
Ttimmdeeg reacted to DennisN's post in the thread Our Beautiful Universe - Photos and Videos with Like.
Another Moon shot... I was out doing a test run with my telescope on September 5 2025 before the lunar eclipse on September 7. Here's...
-
Ttimmdeeg posted the thread I Gravitational self-interaction: another attempt to replace Dark Matter in Beyond the Standard Models.https://arxiv.org/pdf/2503.09804 From the abstract: ... Our derivation uses both EE and the Newtonian approximation of EE in Part I...