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Jan16-12 Greg Bernhardt
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Apr22-11 05:27 AM
2 70,473
The aim of this thread is to highlight recent (as in within the past 3 months) noteworthy physics papers that have...
May6-14 04:32 AM
168 190,378
The regarded idea was that if you travel by the speed of light your body will age less and less, because of the...
Sep23-04 07:57 PM
Doc Al
4 2,017
Yesterday in my physics lesson we were covering electromagnetism and my teacher mentioned the speed of light in a...
Jan12-06 10:09 PM
3 887
If you travel faster than the spped of sound, then you do not hear anything. If you were to travel faster than the...
Jan3-04 10:16 PM
4 8,324
Read the other one this is messed up
May23-03 07:05 AM
M. Gaspar
62 4,347
Hi, I am not a physician and neither do I study physics, I have been to googling to find a good answer with no...
Jan4-11 11:51 AM
Doc Al
14 1,515
My first theory was mathematically backwards, so heres my new one. Einstein believed that time was relative, and...
May5-03 04:17 PM
0 1,176
How fast does time travel when it is not interrupted by curves in space-time? In other words what is the fastest time...
Jan23-13 05:10 AM
26 3,187
Is it just me or is a sphere a truly remarkable thing??? I cannot ponder its properties so ill ask a few questions......
Jul10-03 08:22 AM
5 1,494
Hi, I wonder if someone can point me in the right direction. I'm after a mathematical treatment of the spherical...
Mar17-08 12:30 PM
0 1,252
I was just thinking about a problem for fun where n layers of tape of thickness t are wound on a spool of inner...
Apr18-12 10:15 PM
1 872
Hello,world 1-How does this spring scale work? 2-Where does...
Oct31-11 03:29 AM
7 1,860
The SR Question of the Century ================================= ================================= Why has no one...
Jul16-04 03:09 PM
Martin Miller
268 14,296
I've read that it's several times stronger than steel. I haven't read anything about its stabbing resistance against...
May29-13 04:49 PM
10 2,336
A big part of the theory of the standard model is that the major forces are mediated by the exchanging of elementary...
Mar26-10 11:05 PM
3 1,176
Q1)Imagine a stationary electron(I mean the one with 0 Kinetic Energy) Now if i go past it with a velocity V Then...
Feb17-14 02:07 PM
21 2,819
Hi, My textbooks says that "Josef Stefan investigated the increasing brightness of a black body as it is heated...
Jul16-14 06:40 AM
1 675
Hello Physics Forum! There's an interesting experiment to verify the Stefan-Boltzmann law using an incandescent lamp....
Nov11-11 01:47 AM
0 1,247
What do we mean by different fundamental forces having different relative strength? And if we already consider...
Jun11-10 08:32 AM
1 1,735
Even a brief study of the history of the events that led to the discovery of the strong force is of great interest....
Jun27-04 12:38 PM
32 4,656
I have read that the strength of the strong interaction between two quarks is roughly the same as the weight of a 10...
Feb13-10 11:15 PM
3 2,566
Just wanted to make sure..
Oct4-10 10:03 AM
12 5,177
i want reply to "Why Do Electrons Move?" (sorry, but the thread is closed..) i think the sun is the white hole. i...
Mar27-04 01:18 AM
13 3,298
Now, the conventional way of viewing the solar system is that all the planets orbit the sun, but since you can declare...
Oct14-05 05:21 AM
11 1,812
What is the g force (anomaly) of the sun? I tried to calculate this one using Newton's equation. I did this: /(0.7...
May18-03 11:27 AM
7 6,033
We know that the sun's light takes 8mins to reach the Earth. That means the sun we see now is actually what the sun...
Aug28-05 09:27 AM
5 1,053
On a sunny day, notably in Winter, your hand can feel warmth from the Sun, but as soon as you step out of the Sun your...
May22-06 10:08 AM
4 2,317
This is a question about electromagnetic waves and gravitational waves. Let's say we're on the Earth and we're...
Oct12-12 03:16 AM
13 1,857
How can the sun have much mass if it's just a bunch of gasses? And also what keeps the sun in a circlular shape? I've...
Feb22-04 07:55 AM
14 1,521
If Witten's announcement about the nearly discovered M-Theory, in 1995, came as a shock do not read any further. ...
Mar26-04 06:10 AM
Terry Giblin
0 1,467
Hi fellow physicist! I have some trouble with finding a valid argument, for why the superposition theorem should be...
Sep14-13 06:45 AM
3 650
The surface of Mars, the loss itís of atmosphere and the fate of earth. I think that what we would expect on earth...
Jan14-04 05:07 AM
Jeff Savage
1 3,072
I believe that I have compiled compelling evidence from the TRACE, SOHO and YOHKOH satellite programs to suggest that...
Jun15-05 04:33 PM
3 2,873
Hi, when is the surface waves in plasma equal zero? Thanks
Nov24-06 03:51 AM
0 1,214 we suspend this ball in the tank by using a string ,then...
Nov9-11 09:37 PM
10 1,319
Hello, I have a beginners question about physics. Let's say that you are sitting in one of those swivel chairs -...
Jul2-07 11:38 AM
2 2,827
In Chapter 6 of the Antigravitation Engine Site, the symmetry breaking in vacuum is studied as follows. 11. The...
Jun2-03 09:40 PM
3 1,444
I recently read the novels based on the Xbox game "Halo" and was wondering about the technology. 1) There was...
Jul28-05 02:07 AM
5 2,343
Can somebody tell me how hot or how cold (appr.) the outer surface of an Earth satellite can be? Thank you
Oct28-07 07:37 AM
2 1,581
In 1976 Bill Unruh at British Columbia realized that acceleration has an intrinsic temperature---an accelerating...
May5-03 12:41 PM
7 1,902
This may be a ridiculous question, or we may be overlooking what is a simple answer but a friend and I can't come to a...
May23-13 10:49 AM
9 933

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