Bandersnatch's latest activity

Agreed, provided it is made clear that we are referring to comoving distance rather than proper distance.

As my advisor used to say, "All numbers are small, but most numbers are big."

Present-time events at that comoving distance are indeed unobservable, but those having occurred there very early on - are. So there is...

What I mean here is that as time moves forward, each subsequent light cone expands, with its apex moving up along the time axis, and its...

The particle horizon is the mirror image of our past light cone. That's the currently observable universe, and what you're focusing on...

Sure. The base of the past light cone of the farthest signals we currently observe is larger in comoving extent than current size of the...

I too hate the cheese disease.

There are 2 "sections" of the core, the inner and outer cores. The inner core, which has a mass around 0.4 to 0.6 solar masses (meaning...

Unless you mean something trivial, like how many galaxies we have pictures of, then that's pretty much what it is. It's the extent of...

As was mentioned above, the observable universe is not of a fixed size. The farthest radiation received today - the CMB - arrives from...

Yes. Not only is this all correct, it's the starting point for the development of relativistic view of gravity. You start by asking...

This seems like a good place to dump some fundamental notes: Consider a note played on an instrument, that note has a fundamental...

For me, this is a huge advantage, with my ongoing and worsening health problems. It's becoming more and more difficult for me to get...

'photons detected' The linked paper explains this in detail.

To answer this directly - sure. If you don't have to worry about fuel. You could even walk out of a gravity well at a snails' pace, if...