We had a few brave souls who attempted this vexer, but alas, no one got it right. I think everyone was thinking that it is more complicated than it really is....
Whoa! Is it 60 already? This week's vexer is another one of those familar puzzles that seems to have almost an infinite variation to it. This is one such ...
Welcome to all the new members during the month of November. We hope you will find useful things both on here and/or on our Undernet IRC channel. Please don't...
Not sure if my message got through, so I'm reposting -- sorry if it comes through twice ... ... No, your intention was clear -- I just avoided the issue that...
... No, your intention was clear -- I just avoided the issue that you brought up in favor of a different issue ;). The Schrodinger-cat type situation that you...
How greedy is toro? Is his markup so great that he does not care whenther milk is poured on the ground? Or should we attempt this vexer without having the need...
... <zapperz2000@y...> ... brought up in ... that you pose ... me see if I ... possibilities: 1) ... occurs, some of ... and every ... (one) ... wavefunction...
The big news from last week was of course the first experimental realization of the inverse doppler effect. If you missed it, you may read a brief review of it...
Hi David/straycat et al., Thanks for the stimulating discussion. The words "observation", "our knowledge of the system", "measurement" etc. are really, for...
... Hey zapper, For me to respond to the h2 molecule scenario, I need to learn some more about it. Do you know offhand of any good websites or downloadable...
Hey Tom, ... I agree with you here -- a rigorous description of what does and does not constitute a measurement in QM is lacking. We can all provide *examples*...
In an earlier message, I highlighted this paper by Stenner et al. that appeared in Nature. This paper reports on a very accurate determination of the speed of...
Hi David, I think I essentially agree with all of your major points. Also your examples of a humanless observations in a delayed choice context were quite...
How the electromagnetic field components change under a coordinate transformation depends in part on how the time variable transforms t-- ... precise to tell...
Hey Tom, I'm not sure I am completely following your line of reasoning here. I suppose the question at hand is whether "choice of experiment" plays (or would ...
I don't know why I feel like sharing this with everyone here, but for the past 2 months or so, I've been extracting photoelectrons out of magnesium using a...
How pure is your magnesium? ... I don't know why I feel like sharing this with everyone here, but for the past 2 months or so, I've been extracting ...
... Very pure and polished, as verified under an X-ray diffraction and scanning electron microscope (SEM). BTW, I didn't present this as a "mystery", because...
Your magnesium was obviously travelling at ~ 0.3 c towards the laser when your measurements were made ;& ... Very pure and polished, as verified under an X-ray...
Hi Zz, Hmmm...Good one. I'll call Stockholm for you :) A few aimless questions to get my bearings: What kind of laser is is? What is the linewidth of the...
... You mean that *all* photoelectrons have been extracted at 3.3 eV, or *some* photoelectrons? That is: are there two kinds of photoelectrons? I.e. depending...
The left bank of the river! Hi all, I have the following problem which I have tried to sole it for a very long time, very very long tme indeed- 2 or more...
... imagine ... It's a Ti-sapphire laser, and we're using the 2nd harmonic (which is why we can get the 3.3 eV). The linewidth isn't a factor here. The ...
... I don't know what you mean by "all photoelectrons". There are no material with 100% quantum efficiency. All I'm saying is that I DETECT photoelectrons...
... is ... to ... better ... those ... I don't know much about lasers but a very intense beams would be a lot of photons concentrated in a very small area! ...
... Interesting hint. Here is a weak grope in the dark where I'll probably embarrass myself: Is there some non-linear material effect in the magnesium...
There's a sideways force (Coriolis force) acting on anything moving towards or away from the axis of rotation in a rotating frame such as the earth. The...
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