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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
168 190,563
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Apr22-11 05:27 AM
ZapperZ
2 70,534
Assuming that process of electrons releasing photons isn't instaneous, what happens during the transition? I'm also...
Jan24-06 01:49 PM
vanesch
3 1,695
Hi: New to this forum and have a quick question. Hope I'm posting in the right area. First of all, I'm not an...
Jan24-06 08:07 AM
LURCH
4 4,932
hi I am working on a project on cultural aspect of science. I would like to know what you feel about (a) which...
Jan24-06 03:34 AM
raj_vad
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I read somewhere something about observability, and things which are infinitely big, or infinitesimally small. ...
Jan23-06 11:59 PM
rcgldr
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When ice is @ eqilibrium with water, the pressure is increased, what happens to the eqilibrium?
Jan23-06 11:39 PM
vanesch
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I've been reading the book titled Physics, published by the Physical Science Study Committee (PSSC). It seems to me it...
Jan23-06 06:50 PM
topito2
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Without getting into a mathematical explanation, can anyone who reads this posting explain to me how there can be a...
Jan23-06 05:50 PM
pgisetto
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What does it mean if between an electron and a proton has negative gravitational force? Does this make the force...
Jan23-06 03:39 PM
Robine
7 2,689
Hello, I am about to do a summer project on" ultrafast laser spectroscopy". three months left. Now i am an...
Jan23-06 11:36 AM
inha
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Can anyone shed any light on how this water powered calculator works please?...
Jan22-06 11:17 PM
rcgldr
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I make Daguerreotypes (http://en.wikipedia.org/wiki/Daguerreotype) and I have decided that I want to move from the...
Jan22-06 06:17 PM
Claude Bile
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Has anyone created a radio laser, if not why not if you know...
Jan22-06 06:01 PM
Claude Bile
11 1,651
What is it called when an object accelerates sideways?
Jan22-06 12:28 PM
rcgldr
3 2,483
Hey everyone, I found an AWSOME site that broadcasts science programs for free over the internet. ...
Jan22-06 01:25 AM
kant
5 3,862
Hi, I've had a introductory class to Photonics last year, and now we're elaborating on a few things in my class of...
Jan21-06 05:07 AM
Tsunami
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Hey guys, do you know a good website that explains Work, Energy and Power for High School Physics Thanks
Jan20-06 06:33 PM
Doc Al
2 979
Is it possbile to covert heat energy (like that from the surface of a hot radiator) to electric energy? Whats the...
Jan20-06 02:08 PM
rcgldr
11 11,939
I was wondering if anyone would be able to answer this question for me: Where the the energy collected from wind...
Jan19-06 05:12 AM
rcgldr
20 4,174
Hello. I was just wondering. What if you build a big vacuum sphere (of glas?) about 1-3 m in diameter and took a...
Jan19-06 03:07 AM
Tide
14 1,539
Hey! I just got this new electrostatic generator and I wanted to know if any of you guys have any cool experiments...
Jan18-06 12:15 PM
Danger
1 2,582
I can't figure out the correct explanation for this gedanken. 1) We have a room in deep space which is shielded...
Jan17-06 08:11 PM
DaleSpam
10 1,682
Hi Everybody, I am a newbie here at Physics forums. Physics is one of my favorite subjects. I have a doubt...
Jan17-06 04:15 PM
Meir Achuz
3 1,253
This question has not rendered any respons at all in the forum for Astronomy & Cosmology. Maybe it is more relevant in...
Jan17-06 02:38 PM
rbj
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We're all familiar to the fact that when you for example put two fingers together, they aren't really physically...
Jan17-06 02:15 PM
plusaf
6 6,362
I've been trying to wrap my mind around how a balance works, and I come up with a question I need help with... If you...
Jan17-06 10:23 AM
Chaos Pariah
4 2,490
As you know wi-fi is a radio signal and i'm wondering if physics can help me by determining why is my internet acting...
Jan16-06 06:43 PM
berkeman
9 1,894
Hi do u know anything about fermi zones? I need some good articles to read about...
Jan15-06 09:25 AM
Kouros Khamoushi
6 1,636
I have a question regarding triboluminescence that I was hoping someone could help me with. Late last night, in the...
Jan15-06 07:46 AM
Astronuc
3 3,003
Hi everyone. I have a question that my friends and I have debated for several years. I think I'm right and everyone...
Jan14-06 11:12 PM
pervect
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Assuming a typical white-light focusing flashlight (e.g, Mag-Lite) with a parabolic reflector focused to produce a...
Jan14-06 10:15 PM
joema
10 6,365
ok, i have forgotten my thermodynamics, and need a confirmation for my thoughts here... if youd compress He gas...
Jan14-06 06:07 AM
fargoth
2 1,495
Hey guys and girls, Just letting you know some of the work that a few people here at IMEC have been working on....
Jan13-06 05:26 PM
Danger
3 1,652
I was in a car on a rainy day and saw that the drops on the window were sliding down the window at about 45 deg. , I...
Jan13-06 09:38 AM
DaveC426913
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Amusement park rides, espically roller coasters, atract thousands for their ability to let people experience "zero ...
Jan13-06 09:29 AM
DaveC426913
5 3,096
Yesterday in my physics lesson we were covering electromagnetism and my teacher mentioned the speed of light in a...
Jan12-06 10:09 PM
zoobyshoe
3 887
I know the half life period property of a radioactive element. At present I also studied the half life principle of...
Jan12-06 05:00 PM
HallsofIvy
10 1,207
Hello This is a section from a textbook... "an ampere is defined as that current in each of 2 infintely long...
Jan11-06 11:48 PM
vanesch
27 2,879
In e=mc^2, why is c squared? The (mc) isn't squared, right? Please don't be insulted by the remedialness of...
Jan11-06 11:23 PM
bernhard.rothenstein
9 9,175
Would it be possible or practical to access the electric potential of wind-generated sand static in the desert?
Jan11-06 07:09 PM
Danger
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I'm curious about how very small forces are actually measured in the lab. I read somewhere that a dyne, for instance,...
Jan10-06 02:38 PM
zoobyshoe
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