... Ooookay... Not sure why no one has tackled this, but maybe we are all as confused to what exactly you were trying to do. If your function is as given, then...
Someone e-mailed me asking if the origin of the "frequency = 1/wavelength" might have come from "w" being angular frequency. Take note that I am using the...
As regular members of our Yahoo group and our IRC channel have already known, I occasionally try to highlight the importance of the physics that comes out of...
Could you elaborate on what this "momentum or reciprocal space" is? Is it just a theoritical model/medium to simplify condensed matter physics or..? :) ... the...
... is? ... Since this concept is highly "geometrical", rather than explain it to you on here, I can give you a link to an online Solid state text (albeit, a...
OOookay... We had a few "mishaps" with this vexer, but hopefully, the parties involved would have learned their lessons. ... an ... The answer, of course, is...
This week's vexer may sound a bit confusing after one read, so you may have to go over it a few times. During a recent St. Patrick's Day parade an interesting...
This year's winners of the Physics Nobel Prizes, and contrary to the predictions, they all came from my former field of condensed matter - superconductivity in...
Since we have a lot of high-school students in here, I thought this might be worhtwhile to point out as a possible project, or simply something to do when one...
"I still believe in E = mc^2, but I can't believe that in all of human history, we'll never ever be able to go beyond the speed of light to reach where we want...
I'm in the 12th grade in Romania. I am very interested in physics and now I seek a good university to attend to. I don't have much ideeas and I'm confused....
I think it is "faith-based physics" because he did admitt it's his only faith based initiative. But I don't see anything wrong with that. He's probably right...
We had lots of fun with this vexer, and quite a number of people submitted answers. Unfortunately, most of the answers were wrong. Since the vexer was rather...
This is vexer is a bit different than usual. You are welcome to post your response ON HERE, or reply to the group so that everyone can see it. This is because...
I might as well start this with my opinionated answer to "where are the stars?" , exposure time! If a typical tv broadcast is 30fps (frames per second) then...
In message #472 I posted a notice to the link of PhET, which contains a number of valuable and intersting online physics simulations for high schools students...
What a great Vexer! Below are my thoughts on the three moon questions. My first answer is a basically a long-winded version of what booom0r1 wrote. ... The...
Continuing with our ongoing Group Project of collecting all the latest experimental evidence for the limit to the speed of light in vacuum, which is one of the...
Alright. It appears that only two of our members were brave enough to attempt this vexer. Based on their posted answer, I will give 1/3 to Boomor and 3/3 to...
Let's see if you're as smart as scerir to deprive him of his money.. A bunch of Undernetphysics members were sitting around, gossiping about the latest Nobel...
A recent encounter with a quack led me to this. It appears that there are still many people who think that the idea of "photons" and interference pattern are...
Could you explain a bit clearly as i have no idea what's being asked. "I can take 4 from 4, and leave you with 8" <-- HUH? Maybe i'm not down with the lingo...
Those students write (in the page here below) http://www.optica.tn.tudelft.nl/Education/photons.htm#Experiment%201 "What actually happens when the two-slit...
... That would explain your lovely bill <runs, hides> :) ... That's exactly what it means - the interference pattern is the result of 1-photon interference....
... Yes, there are also weird two-slit esperiments in which a light beam is divided by a (random) shutter in such a way that the two slits are never open...
... I think all this is saying is that if you really took a pure *classical* particle philosophy regarding light (treating photons like molecules in a liquid, ...
... Yes. The (epistemo)logical question now is: to have the interference pattern we need *more* than just *one* quantum (photon, etc.). Thus, stricktly...
... Say who? You are forgetting that the description of "one quantum" contains its PHASE. It really is interfering with itself, passing through BOTH slits, the...
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