Why so many people here today?

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"Democracy has proved only that the best way to gain power
over people is to assure the people that they are ruling
themselves. Once they believe that, they make wonderfully
submissive slaves." - Joseph Sobran

I don't know, but i ain't complaining. Maybe i can see some questions that may keep me entertained for a while

Cartan Henri can become one of the few (in fact the only mathematician that I know off) that would have lived to the age of 100 years! He is one of the original Bourbakis. July 8 is the big day.

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"Democracy has proved only that the best way to gain power
over people is to assure the people that they are ruling
themselves. Once they believe that, they make wonderfully
submissive slaves." - Joseph Sobran

Somebody asked me if I know Rubik's Cube today. It reminded me of the the experts who solve it in seconds.

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"Democracy has proved only that the best way to gain power
over people is to assure the people that they are ruling
themselves. Once they believe that, they make wonderfully
submissive slaves." - Joseph Sobran

I can usually solve the cube in under 3 minutes. My best time was just over 2 minutes.

I can also solve the Rubik's Revenge (4 x 4 x 4) and the "Professor's Cube" (5 x 5 x 5). (I had a thought, based on group theory, that if you could solve the 3 x 3 x 3 and the 4 x 4 x 4 you could solve the 5 x 5 x 5 without learning anything new. Turns out I was right! )

-Dan

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"I must not fear. Fear is the mind killer. Fear is the little death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain." - The Litany Against Fear, "Dune" by Frank Herbert

The thing that scares me is that. Rubik's Cube (3^3) and Rubik's Revenge (4^3) might be related to respectively, but Rubik's Revenge (5^3) would then be related to which is not Solvable.

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"Democracy has proved only that the best way to gain power
over people is to assure the people that they are ruling
themselves. Once they believe that, they make wonderfully
submissive slaves." - Joseph Sobran

The group elements in this case are the different classes of cubes (on the exterior, of course.) The classes are defined in how the cubes move around (are "transformed") by actions on the cube. For the 3 x 3 x 3 we have 3 classes: The middle cubes, the middle edge cubes, and the corners. The 4 x 4 (for short) cube has a new class of middle edge cube that has properties unlike the middle edge cubes in the 3 x 3 and likewise for the middle cubes, but we have the same number of classes. The 5 x 5 has for classes the middle cubes as in the 3 x 3, the middle cubes as in the 4 x 4, middle edge cubes as in the 3 x 3, middle edge cubes as in the 4 x 4, and corner cubes. Since the 5 x 5 does not contain any new classes of cubes I figured it would have to be solvable using methods I learned in solving the 3 x 3 and 4 x 4. And as I said, I was correct.

-Dan

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"I must not fear. Fear is the mind killer. Fear is the little death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain." - The Litany Against Fear, "Dune" by Frank Herbert

Attached Thumbnails

 

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"Democracy has proved only that the best way to gain power
over people is to assure the people that they are ruling
themselves. Once they believe that, they make wonderfully
submissive slaves." - Joseph Sobran

I like watching Judge Judy.
This one has to be the funniest.

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I never seen anyone getting pawned* so badly her before!

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*)This term is used by online gamers when a player completely destroys everybody else in his skill.

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"Democracy has proved only that the best way to gain power
over people is to assure the people that they are ruling
themselves. Once they believe that, they make wonderfully
submissive slaves." - Joseph Sobran

only in a math forum would one need to define that hhahahaha

No. Most of the time I used this term in a conversation people said "what does that mean", thus, I did not want to explain myself twice and defined it for everybody else. It is also a nice term to use in a conversation.

The word "noob" is also a good word, but I do not get a chance to say it so much in a conversation. I use the word "thus" excessively too much.

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"Democracy has proved only that the best way to gain power
over people is to assure the people that they are ruling
themselves. Once they believe that, they make wonderfully
submissive slaves." - Joseph Sobran

I like people that make me laugh.

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"Democracy has proved only that the best way to gain power
over people is to assure the people that they are ruling
themselves. Once they believe that, they make wonderfully
submissive slaves." - Joseph Sobran

I have a small list of words that I would like to hear in casual conversation as well. Now that I've found someone who can use "orthogonal" in a conversation (my girlfriend) I now need to find someone who can use "metaphysicotheologicocosmonogology."

It's a hard, hard world...

-Dan

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"I must not fear. Fear is the mind killer. Fear is the little death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain." - The Litany Against Fear, "Dune" by Frank Herbert

I hope I am not overloading the forum with videos. It seems to be just as stable.

Does anybody was QVC? If you have no idea what it is, it is a TV program that sells stuff. So all of this is live and real.
----
I guess it is easy to confuse a horse for a butterly.

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This ladder looks really safe.

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That guy convinced me to buy that sword.

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"Democracy has proved only that the best way to gain power
over people is to assure the people that they are ruling
themselves. Once they believe that, they make wonderfully
submissive slaves." - Joseph Sobran

Is this typical?

College is starting in beginning of September (I think). And when I go to my college site to see which professors are going to teach what math courses it just says "Staff" or "TBA" everywhere. Now why does that supprise me? Becauase every other department already knows who is teaching what. Except my department . This is so embarrasing. How difficult can it be? Especially when there are so few staff professors? My explanation is that mathematicians are usually lazy and are just relaxing till the last week. So is this typical in other colleges?

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"Democracy has proved only that the best way to gain power
over people is to assure the people that they are ruling
themselves. Once they believe that, they make wonderfully
submissive slaves." - Joseph Sobran