Chris Hillman plaintalk summary of today's GPB announcement

  • Thread starter Thread starter marcus
  • Start date Start date
AI Thread Summary
Chris Hillman shared insights on the Gravity Probe B mission in a post on the Relativity forum, highlighting its success in testing Einstein's predictions regarding gravity's effects on space-time. He is recognized for maintaining the "Relativity on the World-wide Web" resource, which serves as a valuable tool for understanding general relativity. The discussion emphasizes the importance of utilizing Hillman's comprehensive resources for deeper knowledge in the field. His overview of Gravity Probe B is recommended for those interested in the practical applications of relativity. Engaging with these materials can enhance understanding of complex concepts in physics.
marcus
Science Advisor
Homework Helper
Gold Member
Dearly Missed
Messages
24,753
Reaction score
794
In case anyone missed it, Chris Hillman posted this, in Relativity forum, about Gravity Probe B
https://www.physicsforums.com/showpost.php?p=1303301&postcount=33
https://www.physicsforums.com/showthread.php?p=1303301#post1303301

A good reason to know of Chris Hillman is that he maintains the Relativity Tutorial/FAQ resource at John Baez website
http://math.ucr.edu/home/baez/RelWWW/

(which we all probably should visit and use more :smile: )

Hillman's resource is called "Relativity on the World-wide Web"
 
Last edited:
Space news on Phys.org
An excellent source of information on general relativity. His post in the Relativity Forum provides an overview of the Gravity Probe B mission, which was a successful test of Einstein's predictions about the effects of gravity on space-time. It's definitely worth a read!
 

Thread 'Matter density right after the decoupling'

https://en.wikipedia.org/wiki/Recombination_(cosmology) Was a matter density right after the decoupling low enough to consider the vacuum as the actual vacuum, and not the medium through which the light propagates with the speed lower than ##({\epsilon_0\mu_0})^{-1/2}##? I'm asking this in context of the calculation of the observable universe radius, where the time integral of the inverse of the scale factor is multiplied by the constant speed of light ##c##.
View full post »

Thread 'Rutgers finds a transparent Einstein Cross - apparently a dark matter "halo".'

The formal paper is here. The Rutgers University news has published a story about an image being closely examined at their New Brunswick campus. Here is an excerpt: Computer modeling of the gravitational lens by Keeton and Eid showed that the four visible foreground galaxies causing the gravitational bending couldn’t explain the details of the five-image pattern. Only with the addition of a large, invisible mass, in this case, a dark matter halo, could the model match the observations...
View full post »

Thread 'Big Bang and Infinite Universe'

Hi, I’m pretty new to cosmology and I’m trying to get my head around the Big Bang and the potential infinite extent of the universe as a whole. There’s lots of misleading info out there but this forum and a few others have helped me and I just wanted to check I have the right idea. The Big Bang was the creation of space and time. At this instant t=0 space was infinite in size but the scale factor was zero. I’m picturing it (hopefully correctly) like an excel spreadsheet with infinite...
View full post »

Similar threads

What are the FAQs and How-Tos for Physics Forums?
Replies
11
Views
146K
RIP Edwin F Taylor (1931-2025)
Replies
3
Views
626
Webliography: What is the experimental basis of Special Relativity?
Replies
2
Views
3K
Mathematica This Week's Finds in Mathematical Physics (Week 248)
Replies
1
Views
3K
Challenge Math Challenge - December 2018
2
Replies
67
Views
14K
Mathematica This Week's Finds in Mathematical Physics (Week 251)
Replies
1
Views
2K
Mathematica This Week's Finds in Mathematical Physics (Week 249)
Replies
1
Views
3K
Are Finkelstein/Kruskal Black Hole Solutions Compatible with Einstein's GR?
3
Replies
124
Views
16K
Useful Background Reading on Black Holes
Replies
6
Views
2K
Mathematica This Week's Finds in Mathematical Physics (Week 225)
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top