Recent content by igorronaldo

The first two of these facts show that if player X receives an E-triplet on a given turn, then player Y can ensure that X receives an E-triplet on every subsequent turn. Therefore, X must always create a non-E-triplet, by the first of the three facts. Why is that?Shouldn't he try to create...

https://www.physics.harvard.edu/uploads/files/undergrad/probweek/prob90.pdf https://www.physics.harvard.edu/uploads/files/undergrad/probweek/sol90.pdf This is the puzzle I am trying to understand. Does anybody has any idea how the table on the top of the second page i being deducted...

Nice one =)

Hi, I have no problem to study at the library, but there is no way I could study at home. Does anybody have any ideas besides the obvious ones? Sincerely yours, igorronaldo

1. The Nth dragon is you, who might have green eyes but can't see it himself 2.Note that if one of the dragons missed your farewell announcement (which was “At least one the 100 dragons on this island has green eyes”), then they will all happily remain dragons throughout the ages. implies...

https://www.physics.harvard.edu/uploads/files/undergrad/probweek/prob2.pdf https://www.physics.harvard.edu/uploads/files/undergrad/probweek/sol2.pdf the solution is clear until this point: The point is that it is only after you make your announcement that the chain is extended the...

Now clear, thanks.

http://en.wikipedia.org/wiki/Gradient#Cylindrical_and_spherical_coordinates which formula do we apply to get the gradient in spherical coordinates?

If you don't consider a question reasonable, you don't have to comment. I am curious, so I think it makes sense to ask and the metaphor that involved driving a car was very enlivening. Comments like yours are very untasteful and poison the atmosphere. It is disappointing.

Hi, for example in chess you learn by analyzing the games of extraordinary players, in physics I guess it is similar you learn by trying to do it yourself, but your time is invested more wisely, if you analyze the solution and try to do it yourself, rather then brewing over the exercise for...

Homework Statement Hi, I was curious, why it is considered so important to solve the problems yourself. There are a number of puzzles you will get stuck with and trying to brew over them is in my opinion much less productive, then analyzing the solution and getting to know new concepts...