## Search found 671 matches

- Tue Apr 27, 2010 9:47 am UTC
- Forum: School
- Topic: Illinois Institute of Technology or Caltech?
- Replies:
**8** - Views:
**1670**

### Re: Illinois Institute of Technology or Caltech?

Caltech is not as challenging as it is made out to be. You will only set your self up for disappointment if you think of it as a magical place where the classes are a thousand times more advanced than anywhere else (and, quantum mechanics and relativity are not as exciting as psuedoscience writers l...

- Tue Apr 13, 2010 8:37 am UTC
- Forum: Forum Games
- Topic: where are you right now?
- Replies:
**44** - Views:
**3623**

### Re: where are you right now?

I am right everywhere except for those places where I am wrong.

- Sat Apr 10, 2010 9:19 am UTC
- Forum: Mathematics
- Topic: Concatenation Factorization in polynomial time
- Replies:
**1** - Views:
**557**

### Re: Concatenation Factorization in polynomial time

hint:

I've said too much.

**Spoiler:**

I've said too much.

- Sun Mar 28, 2010 8:50 pm UTC
- Forum: Forum Games
- Topic: Attack of the colanders!
- Replies:
**3** - Views:
**942**

### Re: Attack of the colanders!

ABORTION.kaimason1 wrote:Was that colandered any?

Was it that metal to stand beneath the authoritys?

- Sun Mar 28, 2010 8:44 pm UTC
- Forum: Science
- Topic: Why would I need to blow up the moon?
- Replies:
**97** - Views:
**10815**

### Re: Why would I need to blow up the moon?

Because the Earth needs a set of rings far more than it needs a moon. Really, how sweet would rings be? I know forming rings is a non-trivial exercise, and may not even be possible, but given that you just blew up the moon, it seems you have a pretty good grasp of these things. And if you need a re...

- Fri Mar 26, 2010 5:49 am UTC
- Forum: Forum Games
- Topic: Attack of the colanders!
- Replies:
**3** - Views:
**942**

### Attack of the colanders!

Oh no! The modules have gone PERFECTLY SANE THANK YOU VERY MUCH, tooling a colander for every other talking-bit we sort in this yarn!

Just baby goatding. Beauty supply your own colanders and exert them to your wooden stakes in this yarn!

Just baby goatding. Beauty supply your own colanders and exert them to your wooden stakes in this yarn!

- Fri Mar 26, 2010 5:14 am UTC
- Forum: School
- Topic: "When am I going to use this?"
- Replies:
**127** - Views:
**23372**

### Re: "When am I going to use this?"

Blah, blah, blah...

You'll use it when you're DEAD!

You'll use it when you're DEAD!

- Fri Mar 19, 2010 10:21 am UTC
- Forum: General
- Topic: How'd you come up with your username(s)?
- Replies:
**1405** - Views:
**245852**

### Re: How'd you come up with your username(s)?

My username isn't zeb.

- Thu Mar 18, 2010 8:04 am UTC
- Forum: News & Articles
- Topic: Macroscopic Quantum System!
- Replies:
**9** - Views:
**2770**

### Re: Macroscopic Quantum System!

um, if it's big enough that you can see it, wouldn't the constant bombardment with photons cause it to decohere almost instantly? Or have they cheated by not letting you look at it, but "it's big enough that you could see it"? I didn't RTFA so maybe someone can read it for me and explain?

- Wed Mar 17, 2010 11:21 pm UTC
- Forum: Logic Puzzles
- Topic: Bear Puzzle
- Replies:
**23** - Views:
**17920**

### Re: Bear Puzzle

Hint: as well as deducing geographical information from the falling time (i.e. centrifugal forces, gravitational anomaly), the official solution also used other facts about the habitats of bears, the difficulties involved in digging a trap, and the motivations for trapping them... But, I thi...

- Wed Mar 17, 2010 12:42 pm UTC
- Forum: Logic Puzzles
- Topic: Bear Puzzle
- Replies:
**23** - Views:
**17920**

### Re: Bear Puzzle

No, it wasn't.

- Wed Mar 17, 2010 5:55 am UTC
- Forum: Logic Puzzles
- Topic: Bear Puzzle
- Replies:
**23** - Views:
**17920**

### Bear Puzzle

A friend of mine gave me this puzzle, but I'm not sure if his solution is correct: A bear falls into a trap that is exactly 19.617 meters deep. The falling time is exactly two seconds. What is the color of the bear? Note that it is not enough to guess the right color; you also need to give reasoning...

- Sun Mar 14, 2010 6:34 am UTC
- Forum: Religious Wars
- Topic: Light side vs Dark side
- Replies:
**61** - Views:
**14530**

### Re: Light side vs Dark side

Imagine an unelected, semi-secret organization that decided that it would control the senate. Senators that disagreed, disappeared. Due to constant assassinations and election riggings (to the point that the Senators from allied plants were actually monarchies), the senate was too weak and ill-equi...

- Sun Mar 14, 2010 4:40 am UTC
- Forum: School
- Topic: "When am I going to use this?"
- Replies:
**127** - Views:
**23372**

### Re: "When am I going to use this?"

You're looking at someone who did exactly that.Yakk wrote:So read that novel instead of studying math.

Unfortunately there were not enough good novels at my local library so I would occasionally read books on board games or codes or number theory... I was really bored sometimes...

### Re: Mother...

Another technique that works for 3 dimensions as well as 2 is to choose a random point in the unit circle (or sphere), then normalize it. You can choose a random point uniformly from the unit circle by choosing vx and vy uniformly from [-1, 1], and repeating until vx^2 + vy^2 <= 1. For 2-D I usuall...

### Re: Mother...

Choose x and y independently from a Gaussian normal distribution. Then normalize the resulting vector. This works because the probability density of being at point (x,y) is e^(-x^2)*e^(-y^2) = e^(-x^2-y^2) = e^(-r^2), which is rotationally invariant. This trick works in any number of dimensions. Edi...

- Sat Mar 13, 2010 8:32 am UTC
- Forum: Mathematics
- Topic: Rational^irrational can yield irrational
- Replies:
**27** - Views:
**8725**

### Re: Rational^irrational can yield irrational

Let a = 1.101000100000000000..., where the position of the nth 1 after the decimal point is Ackermann(n). Then Liouville's approximation theorem proves that a is transcendental (a*10^(Ackermann(n)) is too close to an integer), and a similar argument to Liouville's approximation theorem proves that 2...

- Thu Mar 11, 2010 6:03 am UTC
- Forum: Computer Science
- Topic: "Computer science" warning symbol.
- Replies:
**31** - Views:
**6546**

### Re: "Computer science" warning symbol.

Bugs? Viruses?

Skynet?

Skynet?

- Mon Mar 08, 2010 6:08 am UTC
- Forum: Language/Linguistics
- Topic: An 18 word contextual language
- Replies:
**134** - Views:
**19616**

### Re: An 18 word contextual language

How would you go about asking for specific things? For example, your wife just makes a pie, a cake, and some brownies. She goes upstairs to ask which you'd like, and you make a stupid comment about women needing to stay in he kitchen. How do you tell her to stop hitting you with said pie, cake, and...

- Sun Mar 07, 2010 2:33 am UTC
- Forum: Coding
- Topic: Typing bytecode?
- Replies:
**30** - Views:
**3684**

### Re: Typing bytecode?

Screw Javascript and Haskell, you should use a high level programming language like this one: http://www.quirkster.com/snusp/snusp-js.html Features include: - Atomic commands - Easy to learn - One character recursion - Turing-complete feature set - I/O that doesn't require the technical machinery of...

- Sat Mar 06, 2010 9:27 am UTC
- Forum: Comics/Graphic Novels
- Topic: How would you make money off your superpower?
- Replies:
**31** - Views:
**12147**

### Re: How would you make money off your superpower?

As deterministic man, I would make a series of arbitrary but nonrandom choices that would lead to me unexpectedly acquiring a large fortune off of the stock market. And I can promise it wasn't just a lucky shot - I am deterministic man, this had a 100% chance of happening from the very beginning! Un...

- Sat Mar 06, 2010 8:56 am UTC
- Forum: Mathematics
- Topic: A unifying theory in mathematics?
- Replies:
**18** - Views:
**4017**

### Re: A unifying theory in mathematics?

The grand unifying theory of mathematics would be the P vs NP conjecture, I think. If P = NP: We can basically solve any solvable mathematical problem by computer given "reasonable" amounts of time. (The problem, "does this statement have a proof that is less than 1+1+1+...+1 characte...

- Sat Mar 06, 2010 8:36 am UTC
- Forum: Language/Linguistics
- Topic: An 18 word contextual language
- Replies:
**134** - Views:
**19616**

### Re: An 18 word contextual language

You know, I have a friend who was describing to me the other day a conversation she was having that went, basically, like this: "Hey, we can't do that thing at that time because of the other thing." "Well how about at the other time?" "But there is the other thing..." &...

- Tue Mar 02, 2010 3:45 am UTC
- Forum: Science
- Topic: Why would I need to blow up the moon?
- Replies:
**97** - Views:
**10815**

### Re: Why would I need to blow up the moon?

To get at those vast, untapped resources of Cheese that have been sitting on the moon, uneaten.

Think about it - with the constant rain of cheese from above, hunger will be eliminated!

Think about it - with the constant rain of cheese from above, hunger will be eliminated!

- Tue Mar 02, 2010 1:41 am UTC
- Forum: Mathematics
- Topic: Help me solve this game
- Replies:
**9** - Views:
**1443**

### Re: Help me solve this game

Hint (not the solution, only applies to normal play Nim - i.e. the abnormal version of Nim): There is a way to mentally replace a collection of piles with a single pile. For instance, it is possible to think of any position with a pile of size two and a pile of size three and some other piles as a p...

- Mon Mar 01, 2010 6:58 am UTC
- Forum: Comics/Graphic Novels
- Topic: Manga Thread of Pain
- Replies:
**161** - Views:
**99482**

### Re: Manga

So just in case anyone here has bad enough taste to continue reading Bleach (like me)... Oh my god Aizen still hasn't fucking killed any of the good guys, grow some balls Kubo. No one has really died died in Bleach. What do you expect? How does death in Bleach even... work? Aren't they all ghos...

- Thu Feb 25, 2010 5:20 am UTC
- Forum: Mathematics
- Topic: graphing logarithms?
- Replies:
**6** - Views:
**1193**

### Re: graphing logarithms?

draw a graph of y=b^x on transparent paper, and turn the paper over by rotating it around the line y=x. Better to graph x=b^y. Choose values for y, calculate x, and plot (x,y). This "usually" works without the aid of a calculator unlike the change of base formula (the more you can do WITH...

- Tue Feb 23, 2010 2:06 am UTC
- Forum: Mathematics
- Topic: Morphisms of varieties
- Replies:
**8** - Views:
**1393**

### Re: Morphisms of varieties

A morphism from a variety V to affine space A^n is just a vector function of the form f(x) = (f_1(x), ..., f_n(x)), where f_1, ..., f_n are regular functions on V. f_1, ..., f_n are called the coordinates of f for... obvious reasons. Affine space is just another way of saying k^n, where k is whateve...

- Tue Feb 23, 2010 1:49 am UTC
- Forum: Individual XKCD Comic Threads
- Topic: 0704: "Principle of Explosion"
- Replies:
**104** - Views:
**32442**

### Re: "Principle of Explosion" Discussion

Speak for yourself. Just because you aren't good enough to figure out how to do it doesn't mean everyone else is an idiot.bmonk wrote:...so, how can you distinguish which one it the actual value? You can't.

- Sun Feb 21, 2010 9:00 pm UTC
- Forum: Mathematics
- Topic: Morphisms of varieties
- Replies:
**8** - Views:
**1393**

### Re: Morphisms of varieties

Most definitions in topology are "local," in that a property holds if for every point, we can find an open set around it where that property holds. For example, the definition of "open set" itself is local: a set is open if every point in the set has an open neighborhood containe...

- Sun Feb 21, 2010 6:35 am UTC
- Forum: Mathematics
- Topic: graphing logarithms?
- Replies:
**6** - Views:
**1193**

### Re: graphing logarithms?

draw a graph of y=b^x on transparent paper, and turn the paper over by rotating it around the line y=x.

- Sun Feb 21, 2010 3:08 am UTC
- Forum: General
- Topic: Creative outlets
- Replies:
**14** - Views:
**2072**

### Re: Creative outlets

I draw mazes.

- Sat Feb 20, 2010 10:48 am UTC
- Forum: Language/Linguistics
- Topic: An 18 word contextual language
- Replies:
**134** - Views:
**19616**

### Re: An 18 word contextual language

I don't see why everyone here seems so hung up on whether the dog chased the cat or the cat chased the dog. All I wanted to know was that the animate object performed an action in the direction of the other animate object. Sort of reminds me of the reason some people give for liking books better tha...

- Sat Feb 20, 2010 10:32 am UTC
- Forum: Individual XKCD Comic Threads
- Topic: 0704: "Principle of Explosion"
- Replies:
**104** - Views:
**32442**

### Re: For those having trouble with the logic P^~P=>(your mom)

Terry Tao just buzzed this (you know, the Fields medal winning Mathematician). He has some insights into logic that may help those who are confused on this board. He's certainly more of an authority than anyone here can claim to be, and he's quite a bit more clear. (Hey look, its my first post and ...

- Fri Feb 19, 2010 6:17 am UTC
- Forum: Individual XKCD Comic Threads
- Topic: 0704: "Principle of Explosion"
- Replies:
**104** - Views:
**32442**

### Re: "Principle of Explosion" Discussion

I imagine the derivation went something like this:

Code: Select all

`Assume P ^ ~P.`

- Then 7+2 = 9, and 72/9 = 8.

- Now assume for contradiction that Mrs. Lenhart's phone number is not 978-448-6872.

-- But then P ^ ~P, contradiction!

- Thus Mrs. Lenhart's phone number must be 978-448-6872.

- Wed Feb 17, 2010 5:44 pm UTC
- Forum: Mathematics
- Topic: Favorite math jokes
- Replies:
**1452** - Views:
**493717**

### Re: Favorite math jokes

You clearly are not a mathematician! [<-- clarification of previous math joke]Xanthir wrote:If the choice is between "baker is still overcharging customers" and "baker is throwing away 80+% of his bread rather than just baking larger loafs", I know which one sounds more plausible.

- Wed Feb 17, 2010 4:51 pm UTC
- Forum: Mathematics
- Topic: Favorite math jokes
- Replies:
**1452** - Views:
**493717**

### Re: Favorite math jokes

When he was calculating the average weight of his original loaves, they would have formed a rough normal distribution when graphed. Then later, when he got bigger loaves, he kept graphing them, and noticed that they looked suspiciously like the right tail of a bell curve (i.e he could have interpol...

- Sun Feb 07, 2010 8:56 pm UTC
- Forum: School
- Topic: What's Your Major?
- Replies:
**133** - Views:
**21204**

### Re: What's Your Major!?!?!

Notzeb, what school do you go to? Also, is that undergraduate or graduate? The American Samoan School for Mad Science and Engineering. These were some summer research projects for undergraduates that I participated in; most of the grad students don't have time for research as the are busy killing e...

- Sun Feb 07, 2010 11:55 am UTC
- Forum: School
- Topic: What's Your Major?
- Replies:
**133** - Views:
**21204**

### Re: What's Your Major!?!?!

I'm Majoring in Astrobioengineering, with a Minor in Undeclared. A lot of people ask me what Astrobioengineering is. I like to illustrate with an example of the project I worked on recently. We recently discovered - well, designed - a microscopic organism that is capable of eating rock. We quickly f...

- Sun Jan 24, 2010 5:54 am UTC
- Forum: Forum Games
- Topic: This is the title of the first post.
- Replies:
**112** - Views:
**9738**

### This is the title of the second post

This post points out that its title is, in fact, false.