#### Basic Information

Biography:
Physicist. Worked with Air Force and private sector on physics and software projects. Love relativity, quantum mechanics, and classical mechanics
Interests:
Reading, private research, scientific writing, TV, Movices, spirituality
Occupation:
Physicist

#### Signature

The most important thing to keep in mind is that you don't know everything and nobody else does either.

#### Statistics

Total Posts
108
Posts Per Day
0.03
##### General Information
Last Activity
08-09-2013 12:28 PM
Join Date
05-22-2013
Referrals
0

### 2 Friends

2. #### mvb

Senior Member

Showing Friends 1 to 2 of 2

### 9 Likes

1. PhyMan liked post by Markus Hanke On thread : How does a blackhole "pull" light?
I think that is unnecessarily complicated. I did the light deflection calculation some years ago as an exercise ( took me several attempts to get it right !!! ), and the only approach that really...
Liked On: 06-17-2013, 04:06 PM
2. PhyMan liked post by mvb On thread : How does a blackhole "pull" light?
You are close actually. The misunderstanding is that the photon has a zero rest-mass, so that its energy is given by E2 = momentum2 c2 + 0. Then E = m c2 tells you that its "working" mass is...
Liked On: 06-14-2013, 06:34 AM
3. PhyMan liked post by mvb On thread : Question about vectors?
Phyman is not inaccurate. He just uses physics terminology instead of mathematical terminology that isn't needed for the physics involved. He also has a good sense of what a person needs to know to...
Liked On: 06-11-2013, 05:19 PM
4. PhyMan liked post by mvb On thread : Question about vectors?
Post #3 is a good example of what I mean by notation. Phyman writes F= ma and notes that there is no inverse for a, preventing you from writing m = F a-1 . He then changes the equation into F=ma,...
Liked On: 06-11-2013, 05:19 PM
5. PhyMan liked post by merumario On thread : Question about vectors?
Doc what's your own self! Let the argument stop.
Liked On: 06-11-2013, 05:18 PM
6. PhyMan liked post by mvb On thread : Question about vectors?
What I need is in fact both of your approaches, and I hope DrRocket does not leave. Physics is itself difficult, and it is necessary to do physical arguments using the properties of the objects at...
Liked On: 06-11-2013, 05:18 PM
7. PhyMan liked post by mvb On thread : Question about vectors?
What I see is a disagreement over terminology, not content. Phyman is quite skilled at seeing what is bothering someone and explaining the physics in question. He does not post rubbish. We need to...
Liked On: 06-08-2013, 11:59 PM
8. PhyMan liked post by merumario On thread : Question about vectors?
Αη∂ think wisely....remember there's an ignore list
Liked On: 06-08-2013, 11:58 PM
9. PhyMan liked post by jimjohnson On thread : Mass of Universe
Glad my post generated such spirited discussion. However, the more mundane issue was substantiating a quote in Brian Greene's book which stated that the mass of the universe was about E56 gms. As...
Liked On: 05-24-2013, 11:27 PM