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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
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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
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Starlab ... a place where 100 years means nothing Starlab NV/SA was a privately funded, Blue Sky research...
Sep12-03 07:38 AM
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Hi, I'm trying to understand electrical potential and potential difference. I was wondering if anyone can confirm if...
Oct12-12 11:57 AM
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Hi I'm having a very hard time trying to picture an argument in Feynmans physics volume one ). I can't picture this...
May1-14 12:06 AM
4 2,063
Hi, here is something I can't understand: When you fill a 100% tube with Mercury, close it in one end (the top)...
Feb15-14 03:14 PM
8 505
Hi, Is it correctly understood that it's the intensity of light that causes melting or heating of objects and not...
Jul17-14 06:41 AM
Andrew Mason
2 779
Hi as far as I have understood: Blackbodies are physicsl objects which absorb electromagnetic waves at ALL...
May15-14 05:04 PM
2 292
Hi, I'd really like to understand How a torsion balance works and exactly how You can use math to derive the Coulombs...
May16-14 11:29 AM
1 275
Hi, If you rub woll against cotton, the cotton get's negatively charged and the wool positively charged. IS this...
Jun11-14 11:04 PM
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Hi I'm wondering: The symbol of charge is Q but the SI unit of charge is coulumb which is the Charge of approximately...
May17-14 05:42 AM
1 275
Hi, I'm curious about J.J thomsons Catode ray, and i have a few questions: In J.J. Thomsons Catode ray setup...
Jul17-14 12:24 AM
3 961
Hi, My textbooks says that "Josef Stefan investigated the increasing brightness of a black body as it is heated...
Jul16-14 06:40 AM
1 668
Hi, i need to calculate air flow true a pipe of 8mm in diameter @ 15 psi pressure, any help? I have a main...
Sep2-12 09:34 AM
5 766
Recently, I went through a sort of "stage" where i wanted to disprove everything worth disproving, and we all know, if...
Jun15-04 11:48 AM
98 8,515
is it wrong? are you wrong? are they wrong? who is wrong? are we all wrong? technicly, to a point, we are all wrong....
Jun5-04 10:11 PM
15 1,356
Recently, I went through a sort of "stage" where i wanted to disprove everything worth disproving, and we all know, if...
Sep16-04 06:25 AM
11 2,508
Recently, I went through a sort of "stage" where i wanted to disprove everything worth disproving, and we all know, if...
Jun3-04 06:05 PM
0 1,449
The Inol Theory Copyright Eric Wright 2004, all rights reserved All Energies are connected to all other...
Jun14-04 11:21 AM
3 1,314
i am a person who just asks where the proof is about where is the proof of the Atomic Structure...
Jun23-04 01:41 PM
18 3,293
Anyone know of any web sites that give full explanations of theories without any math involved?
Aug14-06 02:07 PM
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I'm a college junior and I have a class for physics majors where we need to come up with an experiment to do over this...
Sep1-10 09:38 AM
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I have a undergrad college class where we have to do some sort of experiment and we were gonna try this one ...
Sep9-10 06:25 PM
Andy Resnick
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I need a book that will explain tha statistical methods that we use in the analysis of the laboratory exercises done...
Jul16-06 08:37 AM
1 4,737
Is the force applied due to its viscosity by a liquid on a body, moving on the surface (say a flat body with a smaller...
Jul16-06 06:07 AM
0 755
Are any of you interested in fractals either as science or art? I am trying to open a new forum about fractals in...
Sep29-06 02:47 PM
4 1,685
Hello all, I Found an old keepsake when I recently moved that I bought in Italy 15 years ago. It was a small...
Feb8-09 03:54 AM
3 5,878
Hello to everyone. I feel quite humble to be posting on this physics forum as I am not a physicist but I am in awe of...
Jul13-04 09:29 AM
4 1,512
I have put the new, twentieth edition of my freely downloadable physics textbook in pdf form on ...
Jan9-07 05:00 AM
Christoph Schiller
0 2,172
The new, twenty-first edition of the freely downloadable physics textbook is available on ...
Nov22-07 05:00 AM
1 4,010
I recently bought some pontoons to build a floating camp on. I was wondering if you guys can give me the weight...
May30-10 08:44 PM
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Why can we add masses together and get a mass? This question may seem stupid, but we can't do the same with time: we...
Nov30-06 05:00 AM
J. J. Lodder
8 1,131
It has been a long time since I have emersed myself in physics but I am trying to write a labview program that takes...
Oct17-12 04:20 PM
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I don`t understand the solution for the following question: A satellite is in orbit around the earth. Consider the...
Apr19-10 03:48 PM
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If pressure = force x area 1) why do we measure it in mm of Hg (distance) 2) why do I observe pressure to decrease...
Sep7-07 08:56 AM
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Hey guys, I've been looking around online and only find formulae for car passing through a distance with an initial...
Dec1-11 11:23 AM
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I'm curious to know how the space between two magnets arranged so their like poles are forced to be nearer to one...
Mar29-11 08:42 AM
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In a parallel or series circuit comprising an inductor and a capacitor, is the resonant frequency value of the circuit...
Apr28-11 08:43 AM
1 809
I want to ask which type of the following would have a greater repulsion electrons with parallel spin, electrons with...
Dec31-06 01:38 AM
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I know that the light has no net charge and so it can't be bent by magnetic and electric fields but why there is no...
Jul7-07 11:32 AM
Doc Al
1 1,065
Although this question is simple it's been bugging me: If you were to take one kilo of antimatter and annihilate it...
May19-08 07:42 AM
1 2,913
First of all am I right in thinking that ( comparitivly ) low orbits such as the ISS need very high velocities (in...
Nov21-12 01:51 PM
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