My wife and I were watching Sky News on New Year's Eve when we saw a brief interview with Mike Hapgood about the so-called Leap Second. It really intrigued me....
Hi Celal, Tidal friction has always seemed like a very interesting topic to me, although I have never fully investigated it. One question of mine was answered...
Thanks Scott and a Happy New Year to you ! Celal ... my ... slows ... the ... the ... effect ... called ... its ... my ... but ... in ... a ... a ... has ... ...
This was a vexer a long time ago.... ... full ... Why? ... generally ... initially ... v.37, ... Ed., ... I'm digging this out because there's a more recent...
We're back, with a vengence! ... This is our first vexer of the year, and it's a doozy. There are more than one possible answer to this one. I may contact you...
Hey guys, I purchased for self-study a copy of F.Mandl's "Statistical Physics" textbook on the basis of Amaon reviews that it was the most clearly written etc....
Hi Celal, I don't know about straight statistical physics, but for thermodynamics from a statistical approach, I recommend "Thermal Physics" by Kittel and...
I guess our first vexer of the year is a stumper... ... they ... very ... the ... There are several flaws in this explanation. I'll point out just one. If the...
I hope everyone is familiar with the scenario described in this vexer. Just keep in mind that the answer has nothing to do with what you think. So read the...
Hi Zapper, I think this vexer shows a difference between your teaching style and mine, and probably shows that you are the more experienced teacher. When I...
... I think you're just buttering me up for a strike. I'm not letting my guard down, you sweet-talker you. :) ... a ... The problem here is that the concept of...
Hi Zapper, This thread reminds me of a time when I asked a yes/no physics question to two professors who were standing right next to each other. (For those of...
... professors ... for ... a ... that ... mean ... informal ... easy ... But I think that is what I tried to do in the vexer, which is to assume that the...
Hi Scott and Zapper, I think this vexer was an excellent one and, with an explicit, visual, non-abstract example, debunks the common myth of how single-site ...
Dear Thomas, I think you should send your mail to zappers private email. replying his emails to the groups sends your email to the whole group.. Regards ...
... group.. ... I don't think this should be done via private e-mail. This is a perfectly valid discussion for the group. After all, it DOES involve a...
... visual, ... microscopic ... Zapper ... Scott on ... setup is ... and expert ... couple ... kinetic ... which ... material ... said "the ... gamma ... ...
Hum.. I didn't realize this one is a stumper... ... to ... distant, ... hooves ... The sound is scattered less in the ground than in air, where air currents...
I don't know what to make of this week's vexer, so I'm just going to ask it. What substance, other than water, is LESS dense as a SOLID than as a liquid? As...
Hi Zz, ... Point well taken. I will still try the experiment on a few unsuspecting "data points" -- but you are probably correct on this issue...luckily I...
<<<LagraHUH? If you don't already know what a Lagrangian is, I probably won't be of much help here. In short, if you know The Lagrangian, in principle you know...
... unsuspecting ... issue...luckily ... and ... as ... perturbation ... building ... we ... possible ... scale ... But I think I was being "careful" in the...
... Yes, I see your point here. ... I had a feeling you would mention that, which is why I brought it up, actually :) Although an interesting idea, I'm still...
... up, ... And ... Lagrangian." ... provoking, ... Laughlin made a series of very compelling arguments (in my view) on why everything that we know of the...
... Sure, a single SHO isn't a phonon. But a quantized chain of coupled SHO of any length >1 will give you phonons. Phonons are defined as the quantized...
Hi, I see this thread is continuing to evolve. Both the vexer and answer were pretty well stated and it's an interesting point that the optical properties of...
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