Register to Post Thread

General Physics

- Nature and properties of matter and energy. For any physics topics not applicable to the categories below.
RSS Feed Icon
New Posts
Quality answers to common physics questions
Aug12-14 11:12 PM Simon Bridge 
New Posts
All physics courses. PDFs, tutorials and web links.
Aug14-14 03:46 PM DrDanny 
Meta Thread / Thread Starter Last Post Replies Views
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 70,278
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
168 189,756
This is a fairly simple question. I have some ideas of the implications but I have no idea what the total effect...
Nov26-06 08:50 PM
2 838
Hi I have this question for sometime, and until i found a recent post here on this forum (wavelength and aperture)...
Sep8-09 09:47 PM
3 1,371
Just tryin to wrap my head around it, say ive got 2 squares(only worrying about 2d), assuming one is twice the size as...
Oct10-04 06:56 PM
2 1,278
Wt is meant by the recoil of the nucleus?
Oct17-11 03:11 AM
2 1,215
I had a idea since where starting fresh.what if waves and particles acted as one instead of one at ant given time.what...
Apr24-03 11:37 AM
3 1,340
Einstein says that when a star collapses into a blackhole,a singularity forms punching a hole in the fabric of...
Aug27-04 04:02 AM
19 5,425
since a stellarator uses magnetic fields the contain the plasma,and the plamsa still touches the walls and stops the...
Apr5-03 10:28 AM
16 2,218
In oder for atoms to become a solid they have to get closer to eachother,to become a solid,as they are forced away...
Mar24-03 11:15 AM
5 13,606
If in a beta decay when a neutron decays into a proton,electron,and a anti nutrino,that the answer to where all the...
Mar24-03 04:20 PM
3 2,063
suppose that antimatter is not real in the real sense nut still is.what if when a nuclear decay or atom smasher...
Apr14-03 09:03 AM
15 1,515
I was thinking that I keep hearing that their seeing particle streams being ejected from black holes and don't know...
Apr5-03 10:30 AM
2 1,981
If matter is positive energy,and spacetime is charged with positive energy from the matters energy that collapsed into...
Apr29-03 09:51 AM
8 1,205
superstrings use gravity to fold spacetime around it to create a could force its way into space and...
Apr28-03 11:57 AM
8 1,226
I'm asking this question to see what people think about what happens when two blackholes collide.If you want,give a...
May2-03 08:19 PM
19 2,380
If photons are anti energy and accelerate to light speed by its interaction with spacetime energy.spacetime energy is...
Apr15-03 11:39 PM
Michael F. Dmitriyev
2 1,360
If a mass has gravity and pulls on spacetime.spacetime is charged with the same type of energy that gravity comes...
Apr30-03 09:21 AM
23 4,702
Since RF radiates from a antenna when you key up the transmitter.and since RF is hypothesized to be photons that...
Apr16-03 07:55 PM
0 1,282
if you have a train in moiton in reference to stionary embankment.and the train is 20 ft long.if you have 5 points...
May2-03 02:35 PM
12 1,501
If a singularity is formed at the heart of a collapsing star to form a blackhole,how does it happen.a pulsar or a...
Dec19-03 08:49 AM
14 1,804
I just had a conundrum.we could travel faster than light so easy and its been there the whole time.electricity!!!!when...
Jun25-03 02:17 PM
1 1,113
did you ever think that since light speed is absolute,and nothing no matter how fast you go can't catch up to...
Jul14-03 04:26 AM
Ivan Seeking
10 2,707
I was palying around with my tv and i hooked myself up to the high output to the tube.i arced electricity to the...
Sep21-03 07:11 AM
14 1,949
this isnt homework, this is just general knowledge and i cant figure it out.. please help, thx Find the Laplace...
Feb12-09 08:08 PM
1 1,391
Hello i need to know what should i do, Consider i have a box, top half and bottom half. so now i have to hold the...
Jun6-14 10:04 AM
5 358
PLz find the attached image. Each link weight is given. the 50 kg weight with link rotates about the red hinge...
Aug17-14 09:32 PM
2 197
I read in alocal daily that some bacteria have around 1000rads. Can we take that dna and put it in humans :surprised ...
Oct25-04 12:01 AM
5 1,830
Is it possible to have solar panels one over the other with little space between them to get 10 panel stacked...
Sep28-04 02:14 AM
6 1,933
Is it possible to make electricity travel between 2 places with no wires?
Jan8-05 10:52 AM
12 1,804
Is it possible to create a structure where 1)water is electrolysed into oxygen and hydrogen 2)Hydrogen is burnt in...
Nov26-04 05:15 PM
3 2,582
Do photons have mass or are they only energy? And is it possible to convert energy to mass like mass is converted...
Nov8-05 01:26 AM
4 2,926
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 7,263
When ice is @ eqilibrium with water, the pressure is increased, what happens to the eqilibrium?
Jan23-06 11:39 PM
6 2,666
Hello there, I'm making a presentation on the speed of sound in a few days and I was wondering if anyone knows where I...
Dec13-11 05:26 PM
2 1,705
I had this problem for my physics class where we had a 20eV photon interaction with hydrogen gas. It takes 13.6eV to...
Oct5-11 12:17 AM
1 1,124
Are the amplitudes of the electric and magnetic components of an electromagnetic wave proportional? Or is the...
Oct17-11 02:06 AM
5 1,278
In the field of microwave engineering, skin effect is referred to when people talk about the fact that current, that...
Dec1-10 12:52 PM
Bob S
12 2,575
I'm looking for body-centric equations of motion to cross check an implementation of dead reckoning in Cartesian...
Jun23-12 11:42 AM
Chris Arena
0 572
I have an idea that I would like to discuss. My idea is to emit a low pressure low friction gas out the nose of a...
Jan22-13 04:12 AM
12 1,208
In nonrelativistic classical mechanics and electrostatics the two body bound state is an eliptical orbit. In...
Nov4-06 03:20 PM
Arnold Neumaier
10 842
Can anyone recommend a reliable source of information about eductors? I want to be able to calculate the size of the...
Sep28-10 03:26 AM
1 2,025

Register to Post Thread
Bookmark and Share

Display Options for General Physics Mentors
Showing threads 5881 to 5920 of 36972 Mentors : 3
Forum Tools Search this Forum
Search this Forum :
Advanced Search