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Aug12-14 11:12 PM Simon Bridge 
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Aug31-14 02:46 PM nsaspook 
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Jan16-12 Greg Bernhardt
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
Cthugha
168 190,882
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Apr22-11 05:27 AM
ZapperZ
2 70,644
I asked why a bomb going off on one side of a mountain would seemingly affect gravity for people on the other side of...
Dec22-05 01:53 PM
Tide
1 1,214
Another poster is looking for a 20T magnetic field or better, so I went looking for what has been reported as the...
Dec22-05 06:17 AM
ZapperZ
2 5,322
my objective was that gravity caused movement in an object without lowering the center of mass i built a balance...
Dec21-05 06:27 PM
ZapperZ
4 1,484
Does anyone know where I can find information on the Left/Right Hand rule for Motor Principle, for Motor Principle not...
Dec21-05 08:27 AM
kleinjahr
2 9,754
Since I'm not sure where this would go, I'm posting it here. Can anybody recommend a good Linux equivalent of the...
Dec20-05 06:03 PM
Dr Transport
2 4,909
I read this thread and it looked like a bunch of people who are interested in philosophy just making stuff up about...
Dec20-05 04:52 PM
Renge Ishyo
1 1,489
In one of his lectures Richard Feynman describes the effect of a magnetic field on an electron. In doing this he...
Dec20-05 03:31 PM
Meir Achuz
1 1,656
Since energy is conserved, when an object falls from a given height, the energy which it had as potential energy is...
Dec20-05 11:06 AM
russ_watters
3 1,356
When a charged particle accelerates it produces photons and loses energy which is part of the reason why an electron...
Dec19-05 03:03 PM
DaleSpam
3 1,329
What makes truss bridges so strong? Like if you have something supported by triangles, why is it good? I dont really...
Dec19-05 01:22 PM
DaveC426913
3 1,401
Im fairly ignorant on the theory of terminal velocity. It says that matter has a maximum speed in a certain...
Dec19-05 01:09 PM
Bob3141592
4 2,458
I heard from a particle physics lecture that no one (till now) knows what charge is. We know the interactions of...
Dec19-05 09:50 AM
jet10
10 1,505
What is it?
Dec18-05 04:46 PM
robphy
1 1,093
i recently finished reading Beyond Einstien by Michou Kaku, and i found an interesting theory. because antimatter is...
Dec18-05 01:48 PM
nvidia17
6 1,865
I have Physics Fifth Edition by Giancoli. They only provide answers for odd-number questions and no even-number...
Dec18-05 01:21 AM
KingNothing
1 1,738
what are the open and still not yet answered problems in continuum mechanics as of today? i reackon navier-stokes...
Dec17-05 04:04 AM
MathematicalPhysicist
4 2,293
If you are going to meet a professor and you've got to ask him one question, what will you ask? I am going to write...
Dec16-05 02:20 PM
Plastic Photon
20 2,201
Why in the world would you hook the two positive terminals up, and then you put 1 side of the wire on the negative and...
Dec15-05 07:26 PM
Danger
7 4,154
OK, so this is spawning off from a discussion between myself and some of my physics inclined friends. We were talking...
Dec15-05 12:00 AM
rbj
11 1,283
I want to create a hologram by myself . How can I create it . I know that I need a laser a optic plate . But what is...
Dec14-05 11:23 PM
ngkamsengpeter
11 7,797
I saw a guy claiming to have studied geology and telling that "only dust of hydrated minerals could agglutinate,...
Dec14-05 07:16 PM
Danger
4 1,087
Why doesn't water fall down from a bucket while rotating it upside down? Also: 1)What causes sound when bombs...
Dec14-05 06:54 PM
Doc Al
6 7,298
I have a chance to do an Independent Study in place of a regular class (senior, high school), and with my physics...
Dec14-05 03:29 PM
cscott
13 2,869
By variational principles I mean e.g. the Principle of Least action in Mechanics and Fermat's principle in Optics. ...
Dec14-05 01:58 PM
arildno
8 3,280
i read that you measure visocity of water by poises (sounds like poison :rolleyes: ), how does it equate with the...
Dec14-05 07:32 AM
Astronuc
4 1,187
Kind of a hard question to ask. In our universe we observe preservation of matter. At time t0 my mug may be at...
Dec14-05 01:20 AM
dicerandom
1 2,583
I'm having an argument with a co-worker about gravitation and need some "enlightened" advice. The argument is...
Dec13-05 03:47 PM
Doc Al
20 9,437
Hi all, I need to create a very large magnetic field say 1Tesla (10000 Gauss). But I can not afford to build large...
Dec13-05 09:52 AM
berkeman
1 1,805
'Hyperdimensional physics' ? If this is against the rules then i ask for a mod to please close this thread. Thank you...
Dec12-05 01:41 PM
vincentm
3 1,230
If photons are emitted or absorbed when a pair or a collection of particles, that are or behave as dipoles, undergo...
Dec12-05 12:52 PM
Meir Achuz
2 1,545
This is something I have been doubting about for a rather long time, but now I want to try and ask other people to...
Dec12-05 09:30 AM
robphy
22 1,705
I'm doing a presentation on the physical properties of quartz for my Physics a-level and mostly on its piezoelectric...
Dec11-05 07:23 PM
FredGarvin
2 3,054
From my understanding, uncertainty theory only says that we would be unable to measure the position and momentum of a...
Dec11-05 03:23 PM
Ratzinger
4 1,907
Just curious: Is there a way to calculate flame height given the material being burnt and the area of flame output...
Dec11-05 02:28 PM
Danger
4 3,818
(I'm not too good with history so correct me if I'm wrong.) pre-gallileo this is what people generally assumed....
Dec11-05 10:31 AM
sigh hens
2 18,995
Just wondering what everyones view on the properties of Light is. I'm new to these forums, so I don't know if it has...
Dec11-05 08:46 AM
nazgjunk
29 4,410
I was just curios to know how many physicists out there personally own a laser. If you own a laser, what do you do...
Dec11-05 05:02 AM
Jonny_trigonometry
16 2,234
I'm no physicist but this really doesn't make sense to me. Simple newtonian physics says that gravity is...
Dec10-05 10:42 PM
Tide
8 6,060
how can this be explained?
Dec10-05 10:03 AM
Danger
1 1,865
Iím currently involved in a debate with a few folks regarding the validity of the Conservation of Momentum principle....
Dec10-05 08:58 AM
pmb_phy
37 8,764

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