Alright. We had several attempts, but unfortunately, no one got this one correct - of course, it is debatable if my answer here convinces everyone, so let's...
OK, this week's vexer is just plain mindless "entertainment". What word best completes the following sequence: Stare Effort About Notice a) Alone b) Crowd...
Continuing with my solo "group project" on the experimental evidence of the postulates of Special Relativity, this time it comes from a workshop paper on the...
As if Frank Wilczek needs more publicity, now he's being asked by Physics World what books/pop-science books he likes to read, or is reading. Check it out, it...
Well Zapper, I can't agree with your explanation. I think there's something related to the method of the counting. If you count the time with a stopwatch, all...
... time ... the ... error. ... point and ... large ... after the ... accurate ... counting ... have ... express ... Well think about it. If a mass is moving,...
When I got up this morning, I suddenly understood why we have the disagreement. I was thinking of single pendulum all the time, that is why I wrote "lowest...
... is why ... Take note that even for a pendulum, the lowest point of the swing is still not a good place to start and stop time, because again, this is where...
Ahem! Let me make a mental note that sometime, "plain, mindless entertainment" can fall flat on its face. It appears that this one wasn't entertaining enough....
I have no idea how this is going to go. But what they heck..... In this week's vexer, you are to list as many reasons as you can, to explain the scenario I...
Hello, I do not agree with the reasoning that it is advantageous to start timing at the end of the oscillation, when the mass is instantaneously at rest. Yes,...
... This has been an interesting Vexer as there is continuing disagreement. You may be right in the case of human senses. I'm sure the only way to settle it...
Ah, but there is a difference in what you determine to be the "timing error" with what is being called for here. The "timing error" that I described is simply...
... as ... that ... where ... will ... disagreement. ... to ... this ... sensor), ... of the ... It certainly has been more interesting than I perceive. And it...
This is a reasonable analysis if you accept the assumption that you're pressing the button when the mass reaches a certain position window of constant width...
This is the continuation of our on-going series of essays by me, which tries to impart all the information that I wish someone would have told me when I was...
... You are right. The "timing error" dt I calculated is not the reaction time. If the error you meant in the vexer refers to the reaction time, then it won't...
I don't really want to drag this thing way beyond what is needed, but... ... experiment is ... time. ... location ... is ... even ... something ... describe ...
This may not be the BIG news of the week, but it is certainly exciting to me. Rather than present to you my own version, let's just direct you to the...
This is another interesting news that is close to my heart, or at least close to my previous life. The report in this week's issue of Science provides...
Whoa! OK, so this vexer was a complete failure, or people didn't find it exciting enough to give it a try. ... LARGER ... that ... what ... There are many...
Hopefully, this week's vexer is in a more familiar grounds... A rocket with initial mass m0 starts from rest and travels in a straight line in a gravity-free...
Zapper, It may be that everyone was totally stumped by your vexer. No lack of interest on mys part i assure you. I did do my homework but can only provide a...
... of ... only ... Well, you could be right. But typically, I would get even half- hearted attempts. This time, I got none. So I can only venture a guess that...
Well, those are good guesses, but they are partially correct. :) 1. angle of incidence. The bigger issue here is the REFLECTIVITY of the material. QE is ...
Is there not also a lot of other processes that can take place that "competes" with the photoelectric effect. The main other two are Compton Scattering and...
... distinction ... number ... that ... This ... Hello Zapper, Ok. Here's a stupid question for you : what does 'reflectivity' really mean at the molecular...
I'll have a go at answering these and see if I'm right. ... WHY ... When molecules/materia is under the influence of electric fields, the electron clouds can...
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