Articles on all forms of relativity, on outer space, and on astronomy, astrophysics and cosmology will tend to be found in this category. Occasionally they will end up elsewhere; here are some links to them.
Relativity, Space, Astronomy and Cosmology
Buy The Book
Reading My Book?
Got a question? Ask it here.
Media Inquiries
For media inquiries, click here.
6 Responses
Hey, I recently read your articles on “Virtual Particles,” which were very informative, as my understanding had been tainted by pop-sci approximations, but it left me with a question about Hawking radiation (one that your article on the Information Paradox had to skim over).
The way I had Hawking radiation explained to me was that, occasionally, a virtual particle – antiparticle pair will pop into existence just outside the event horizon of a black hole; being so close, one of the two will fall past the event horizon, but the other may end up escaping, thus no longer being virtual.
From what you’ve said, though, that’s not how virtual particles work. They aren’t actual particles, let alone distinct ones that could be separated like that.
Even more, I was never clear on how this *decreased* the energy inside the black hole; if one of the particles was absorbed, that should *add* to the black hole’s energy; unless the actual claim was that they were created just *inside* the horizon, and one somehow quantum tunneled out? Which seems unlikely.
So, how would you describe the process, more accurately?
Let me suggest you first look at this article: https://profmattstrassler.com/2022/09/09/protons-and-charm-quarks-a-lesson-from-virtual-particles/ . This makes clearer how energy is conserved in this process.
Then swing back to me, and then I can answer your question in this more detailed language.
W against T, reference required. #conspiracyofscience
I would like to see an in-depth article on gravitational time dilation.
News– gucci Can Have A Substantial role In Any Website administration Beats By Dre Diesel Vektr http://www.zjubrc.com/beats-by-dre-diesel-vektr-Monster-3/
Hi,
It would be nice to see an article about the vacuum. There is all kinds of interesting stuff going on in there.
In particular I would be interested to know if you think that the fundamental constants could be intrinsic properties of the vacuum and if these constants could be scale dependent giving rise to the fundamental forces.
Cosmic scale (dark energy)
Everyday scale (gravity)
Atomic scale (electromagnetism)
Nuclear scale (weak force)
Proton scale (color force)
10E10 GEV scale (inflation force)
So each force could be associated with a scale dependent vacuum structure.
Its interesting that the electroweak force has both a short range component and a long range inverse square component. Gravity has no obvious short range property and the color force has no obvious long range property so perhaps they are both aspects of the same underlying force.