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Feb2313 08:38 AM
ZapperZ

1 
35,548 
When do you think type one civilization will be reached?
I think we'll reach type one civilization will be reached...

Dec303 08:22 PM
flattered_cracker

43 
3,292 
OK we know beyond doubt that electrons exist in reality, even if noone really knows what they actually are.
Can we...

Nov2003 07:25 PM
Nereid

41 
3,801 
Hi all,
I've been reading through these forums for a while now. I don't post, but I just like to watch what...

Nov1303 08:25 AM
beatsntoons

3 
2,001 
Hello,
I believe that a field is something more than just a region. I feel it has something that we all don’t know....

Nov1203 08:18 AM
benzun_1999

10 
1,210 
Quantum theory is very successful in describing bits of matter as clouds (probability distributions).
Ironically,...

Nov1403 12:00 AM
mojofabuloso

9 
1,192 
I'm trying to show the relation between L^2 and Lz where L is total angular momentum and Lz is the z component.
...

Nov1003 11:37 AM
Tom Mattson

3 
5,282 
Just a few questions I have been trying to find answers to.
A) Will a gyroscope function in deep space with the...

Nov2003 10:13 PM
selfAdjoint

5 
3,161 
I'm trying to demonstrate that angular momentum and the Hamiltonian commute provided that V is a function of radius r...

Nov1103 05:49 PM
mmwave

4 
7,221 
Hi. I'm to compare science and religion for some schoolwork that I'm doing in a religion class. I'm to find out how...

Nov1103 03:02 PM
arcnets

2 
1,445 
Hi,
I am a high school student, and I am planning on going into quantum computers as a profession. However I have...

Nov1003 10:21 AM
jcsd

2 
961 
Consider a photon which is sent towards a detector. The instant before the photon hits the detector, let's say one...

Nov1103 08:31 PM
Ambitwistor

15 
3,954 
Another question let be S1 and S2 two action so that Si'=H being the ' derivative respect to time if
S1=S2+V then...

Nov1103 06:01 AM
eljose79

0 
1,649 
I am a first year university student (and have taken chemistry and physics through high school, and still do) and was...

Nov1603 07:40 PM
WoundedSloth

7 
3,710 
I know that when an atom reachs the plasma stage its electrons have gone through diffrent orbitals getting...

Nov1403 05:44 AM
Yossarian

3 
3,316 
OK, I would really appreciate it if somebody could explain to me as simply as possible why entanglement happens...

Nov1603 12:29 PM
heumpje

6 
2,822 
I saw a series about neutrino research on TV and evrybody talked about 'Geisterteilchen' (ghost parts, literally...

Nov2103 01:54 PM
rtharbaugh1

12 
2,110 
hi all,
What is quantum number????????
I know a bit about quantum number but i am not clear about it so can...

Dec103 10:22 AM
mormonator_rm

7 
2,479 
when a photon aquiers more energy is the transfer instant
or is there a time lag before the photon exhibits its
new...

Nov1903 11:26 AM
wolram

17 
1,844 
http://physicsweb.org/article/news/7/11/3/
It's interesting to say the least, though of course it's not yet been...

Nov1903 11:13 AM
jcsd

0 
1,318 
In QM hermitean operators are used as observables, which provide real eigenvalues. According to a version of the...

Dec103 09:11 AM
Poska

17 
6,004 
When light is incident on a surface of water, for example, some of the light is reflected and some is transmitted and...

Nov2103 10:41 AM
Chi Meson

1 
1,273 
Given an electron configuration such as 1s2 2s2 2px2 2py1
(My apologies for not knowing how to insert subscripts...

Nov2003 02:16 PM
dougz

0 
2,619 
When studying Thermodynamics, we make much use of adiabatic processes where a change is made so fast that no...

Nov2003 10:22 PM
selfAdjoint

1 
2,248 
Hi dear virtual friends,
I am now going to ask you something. I would be pleased if you would answer me.
In an...

Nov2303 01:31 PM
string_theory

2 
1,838 
Depending on energy, how far will an Electron penetrate a block of acrylic? If you have any clue or where I could...

Nov2103 08:17 PM
GENIERE

2 
5,744 
Hi everyone!
I'm having some problem calculating the probability for a particle to penetrate a barrier (potential...

Nov2903 07:22 AM
nocturn

4 
2,776 
http://news.bbc.co.uk/2/hi/science/nature/3277579.stm

Nov2503 09:14 AM
mormonator_rm

15 
2,117 
Greetings !
Here's an example by Steven Weinberg I read sometime
ago (in SciAm I think):
Imagine a light beam...

Nov2403 07:41 AM
drag

3 
1,292 
Franck Wilczek
Inventory and Outlook for High Energy Physics
http://arxiv.org/hepph/0212128
it's the summary...

Nov2203 07:30 PM
ranyart

1 
3,102 
I believe that the Axioms for TQFT were set out by Atiyah
in 1990 and that one of the equivalent definitions of a...

Nov2103 11:58 PM
marcus

1 
2,583 
consider a two fold degeneracy such that
H Psi_a = E Psi_a and H Psi_b = E Psi_b and <Psi_a  Psi_b> = 0
All of...

Nov2503 08:06 AM
lethe

3 
5,464 
We are trying to solve for the energy shifts for the states with l=1, considering a symmetric rotator with Ho=L^2/2I...

Nov2503 12:48 AM
Kristen

0 
1,517 
Tun, te tum, please read these thoughts I've written and commment.
Consider two hydrogen atoms.
As they are...

Nov2703 08:34 AM
meemoe_uk

1 
1,788 
Hi guys, i'm having a bit a trouble helping my daughter with this question on the fourier series approximation:
The...

Nov2703 03:03 PM
lethe

3 
1,378 
Hey guys!
As of lately, i've indulged deeply into the entire affair of Quantum Mechanics, field theories and the...

Nov2903 02:18 PM
selfAdjoint

14 
2,193 
http://www.nature.com/nature/links/010927/0109272.html
Particles small enough for their behaviour to be governed...

Nov2903 10:20 PM
mojofabuloso

12 
1,861 
guys i need help!!! i need to come up with a drawing and an explanation of a Neon atom model. the model has to be...

Nov2903 12:35 AM
lorenz

0 
10,724 
I am a little stuck understanding and answering the following questions. Can anyone help me with them?
"A...

Dec403 03:16 AM
adi_butler

4 
1,876 
For context I'm looking at:
http://www.mtnmath.com/whatrh/node80.html
Bell's theorem suggests that a hidden...

Dec403 05:46 PM
NateTG

1 
1,496 
How would be a good way of explaining Sationary Waves to somebody who does not know what they are? I'm talking...

Dec803 08:00 AM
slyboy

2 
2,381 