Search found 218 matches

by tesseraktik
Wed Jun 16, 2010 10:14 pm UTC
Forum: Mathematics
Topic: Question about volume.
Replies: 14
Views: 1238

Re: Question about volume.

Oregonaut wrote::lol: The more I think about this, the more I think I'm going to be learning as well.
To quote John Wheeler: "If you would learn: Teach!" ;)
by tesseraktik
Wed Jun 16, 2010 9:56 pm UTC
Forum: Mathematics
Topic: Question about volume.
Replies: 14
Views: 1238

Re: Question about volume.

Awesome, you rock. My daughter called me at work and asked me to bring home the information so we could do this together. She's 8, so she's really excited that I'm really excited that she's really excited. Basically we've invented an infinite loop of excitement about this one simple exercise. Glad ...
by tesseraktik
Wed Jun 16, 2010 9:22 pm UTC
Forum: Mathematics
Topic: Question about volume.
Replies: 14
Views: 1238

Re: Question about volume.

The volumes are correct ( V_{water}=V_{cylinder}-n_{dice}\cdot V_{dice} ), but what you want is an icosahedron (a dodecahedron, while it's easy to interpret dodeca as two times ten , is actulaly a 12 -sided polyhedron). Then, if L is the side length of each of the surface triangles, the volume is V&...
by tesseraktik
Wed Jun 09, 2010 4:57 pm UTC
Forum: Science
Topic: Is the psychobabble on Frasier convincing?
Replies: 19
Views: 2764

Re: Is the psychobabble on Frasier convincing?

Again, the issue is not what they're actually portrayed doing. I think it's good that some type of nerdy characters are getting relatively sympathetic face time on television. I think it's good that their hobbies are being shown as just hobbies. My point here is that the things they do are often us...
by tesseraktik
Wed Jun 09, 2010 4:25 pm UTC
Forum: Science
Topic: Is the psychobabble on Frasier convincing?
Replies: 19
Views: 2764

Re: Is the psychobabble on Frasier convincing?

Interestingly, my qualms with BBT are somewhat the opposite of yours: I am annoyed by the fact that there isn't more focus on the repercussions of social incompetence; in my experience, being a nerd (/geek/dork/freak/dweeb) is hell, and I'm happy that I'm not one of them anymore (social status-wise,...
by tesseraktik
Wed Jun 09, 2010 6:49 am UTC
Forum: Mathematics
Topic: Statistics Research Paper
Replies: 17
Views: 3771

Re: Statistics Research Paper

Might I ask: Is this poll about our political views as they pertain to our own respective countries, or as they pertain to the U.S.? One can certainly be for/against one's own country's corporate bail-outs, but against/for the U.S. bail-outs, and one can consider one's own country's taxes to be too ...
by tesseraktik
Mon Jun 07, 2010 6:28 pm UTC
Forum: Science
Topic: Is the psychobabble on Frasier convincing?
Replies: 19
Views: 2764

Re: Is the psychobabble on Frasier convincing?

Some very interesting feedback, y'all; thanks :D Stephen Hawking himself is a Trekkie, and managed to get a cameo on TNG playing poker with Data. ;) Indeed: "Wrong again, Albert." :) After all, Frasier's main draw was the interplay between the characters and how relatable many of them were...
by tesseraktik
Sun Jun 06, 2010 6:26 pm UTC
Forum: Mathematics
Topic: I need some help. (distance in an expanding universe)
Replies: 11
Views: 1321

Re: I need some help. (distance in an expanding universe)

Warning: Long read with no guarantee of success. Proceed at your own risk! Also, the time-dependence of H 0 is not considered at all. Edit: ...and now I see what doogly and gmalivuk are talking about, so... ...yeah. I'm no expert on the field, but I'm guessing you could get the formula solving the ...
by tesseraktik
Sun Jun 06, 2010 2:04 pm UTC
Forum: Mathematics
Topic: Wish I had seen/understood this comic sooner...
Replies: 36
Views: 3863

Re: Wish I had seen/understood this comic sooner...

A popular myth regarding human sexuality is that men think about sex every seven seconds. In reality, there is no scientific way of measuring such a thing and as best researchers can tell, seven seconds seems like a gross overstatement. I can just imagine a bunch of researchers standing around awkw...
by tesseraktik
Fri Jun 04, 2010 6:48 pm UTC
Forum: Science
Topic: Is the psychobabble on Frasier convincing?
Replies: 19
Views: 2764

Re: Is the psychobabble on Frasier convincing?

[...], and the allusions to haute couture are on such a level that even I can understand them ("Oh, Niles, [blah blah blah] Oedipus [blah blah blah] Pavarotti!"). I can't help you on the psychiatry stuff, but I just wanted to point out that haute couture doesn't mean what you think it mea...
by tesseraktik
Fri Jun 04, 2010 6:16 pm UTC
Forum: Science
Topic: Is the psychobabble on Frasier convincing?
Replies: 19
Views: 2764

Is the psychobabble on Frasier convincing?

Hello, everybody! Recently, in the NUMB3RS Parody -thread, I asked how believable the mathnobabble was on NUMB3RS , and the consensus seemed to be that it was nearly en par with CSI's image enhancement technology. Of course, I know that one an enjoy a TV show even if everybody on the writing team do...
by tesseraktik
Tue Jun 01, 2010 3:52 pm UTC
Forum: Mathematics
Topic: NUMB3RS Parody
Replies: 25
Views: 4787

Re: NUMB3RS Parody

Quite amusing, this :) I've never actually watched NUMB3RS; how believable are the mathebabblics on a scale from as believable as the science in Star Wars to as believable as the science in 2001: A Space Odyssey ? I once heard that they pinpointed the location of some robbers by using the fact that ...
by tesseraktik
Mon May 31, 2010 12:10 pm UTC
Forum: Mathematics
Topic: Most interesting mathematician?
Replies: 35
Views: 4026

Re: Most interesting mathematician?

einstein wasn't a mathematician. he had to have friends do much of his math for him. "Tullio Levi-Civita - The man who corrected Einstein's work" might make for an interesting title... ...although I honestly don't know much about the fellow, except that the math he did is difficult to stu...
by tesseraktik
Sun May 30, 2010 8:18 pm UTC
Forum: Language/Linguistics
Topic: tlhIngan Hol yIjatlh! (Klingon Practise)
Replies: 45
Views: 20266

Re: tlhIngan Hol yIjatlh! (Klingon Practise)

p.s. And I know, years ago, there existed a cool flash-card style program designed for tlhIngan. I don't have it anymore, but maybe one of you do? You're probably thinking of KLIFLASH by te'reS. I recently learned the founder of Klingonska Akademien will be holding a beginner's course in Stockholm ...
by tesseraktik
Sun May 30, 2010 7:53 pm UTC
Forum: Mathematics
Topic: Most interesting mathematician?
Replies: 35
Views: 4026

Re: Most interesting mathematician?

Galois certainly seems a good choice, although as Lycur points out, his contributions may be difficult to appreciate. You might consider reading up on Niels Henrik Abel, a Norwegian mathematician who was contemporary with Galois and did similar work. In my experience, he is virtually unknown high sc...
by tesseraktik
Thu May 27, 2010 9:33 pm UTC
Forum: Science
Topic: Space Simulation
Replies: 83
Views: 5496

Re: Space Simulation

TheChewanater wrote:We're the Mandolorians
Vehicle of choice: Manned DeLoreans?

So, anyhow, who wants an advisor? I'm halfway through my exams, now, so I should be able to be of some assistance.
by tesseraktik
Thu May 27, 2010 9:27 pm UTC
Forum: Mathematics
Topic: Wish I had seen/understood this comic sooner...
Replies: 36
Views: 3863

Re: Wish I had seen/understood this comic sooner...

Also consider that e is often used in formulas connected to time. All time. Indeed, or at least with the integration variable t , which is loosely referred to as "time" no matter what it really represents, and in particular, it's often used in integrals with one or both endpoints at infin...
by tesseraktik
Wed May 26, 2010 1:21 am UTC
Forum: Science
Topic: What's up with Ronald Mallett and Time Travel?
Replies: 16
Views: 2637

Re: What's up with Ronald Mallett and Time Travel?

Want to think faster than your rivals? Simple: Just move to an orbiting satellite, and get about 40 extra microseconds out of each day! ...and if that's not enough, put rocket thrusters on everything in the solar system, propagate it away from you and then return it to where you are (you did install...
by tesseraktik
Sun May 23, 2010 2:09 pm UTC
Forum: Science
Topic: Space Simulation
Replies: 83
Views: 5496

Re: Space Simulation

The OP actually admits that this should be in the forum games section... ...so, yeah, we're all being quite naughty :P What exactly qualifies as "a possiblity in real life"? Can I outfit my ships with alcubierre warp drives? Reactionless drives using matter with negative mass? Nuclear expl...
by tesseraktik
Sat May 22, 2010 11:30 pm UTC
Forum: Science
Topic: Space Simulation
Replies: 83
Views: 5496

Re: Space Simulation

nbonaparte wrote:There needs to be a problem in which reversing something's polarity really does fix it.
"Sir, these 3D glasses are AWFUL!"
"Change the polarities!"
by tesseraktik
Sat May 22, 2010 10:23 pm UTC
Forum: Science
Topic: Space Simulation
Replies: 83
Views: 5496

Re: Space Simulation

I'll be having exams these next few weeks, but after that I'd be happy to jump in as an adviser. As a Physics student and former Captain and Council member in a Star Trek text role-playing fleet, I enjoy these sorts of things... ...and don't worry: I won't suggest we mine for pentalithium to build a...
by tesseraktik
Sat May 22, 2010 1:21 pm UTC
Forum: Science
Topic: Quantum theory and Principle of Explosion
Replies: 21
Views: 1181

Re: Quantum theory and Principle of Explosion

A few months back, however, that teacher of mine was killed by a gang of hidden variable theorists :'( That sucks; hopefully it wasn't done locally. We still don't know. But yeah, imagine if all of this could have been prevented if only our schools taught about Bell inequalities :( That's why I inc...
by tesseraktik
Sat May 22, 2010 12:38 pm UTC
Forum: Language/Linguistics
Topic: Parlons Français ! [French practice]
Replies: 616
Views: 170727

Re: Parlons Français ! [French practice]

Voilà, un guide de vocabulaire d'Internet :)
...et voici un autre!

(Est-il correct d'écrire "un autre" si la chose est masculin, ou dit-on toujours "une autre"?)
by tesseraktik
Sat May 22, 2010 12:39 am UTC
Forum: Science
Topic: Shortest possible length of time?
Replies: 17
Views: 2853

Re: Shortest possible length of time?

There are an infinite number of positions the pendulum could be in, in the same way that there are an infinite number of numbers between 1 and 2. You can always divide a length or a time span or a number by 2 and keep getting smaller and smaller increments, in theory. Only if you assume that every ...
by tesseraktik
Sat May 22, 2010 12:28 am UTC
Forum: Science
Topic: Quantum theory and Principle of Explosion
Replies: 21
Views: 1181

Re: Quantum theory and Principle of Explosion

(In an unlit room, not being observed, everything exists at the same time) Well, if something isn't measured, none of your statements about them will ever really be wrong, so in some sense, yes: Every statement that is not subject to measurement is true. Note that this does not allow you to assume ...
by tesseraktik
Wed May 19, 2010 11:58 pm UTC
Forum: Mathematics
Topic: I can't figure out what's wrong with this one.
Replies: 11
Views: 1269

Re: I can't figure out what's wrong with this one.

x^2 = (-x)^2 (x^2)^0.5 =((-x)^2)^0.5 You cannot square both sides and take the square root and have that work, because for all for all real x , \sqrt{x^2} = |x| = \sqrt{(-x)^2)} Indeed, which is why these two "proofs" are wrong in similar ways: They require that you invert fun...
by tesseraktik
Wed May 19, 2010 6:36 pm UTC
Forum: Science
Topic: Inertia questions
Replies: 14
Views: 1743

Re: Inertia questions

I've never understood wheels, but here's a page that you might find helpful: http://physics-animations.com/Physics/E ... gl_txt.htm
by tesseraktik
Wed May 19, 2010 3:45 pm UTC
Forum: Mathematics
Topic: evaluating a certain integral.
Replies: 6
Views: 788

Re: evaluating a certain integral.

If you replace the integrand by its taylor series (and you are within the radius of convergence of the series), then it becomes the simple case of integrating a polynomial. Indeed, or if you know the value of li(x) where x is on the "correct side" of the singularity (x=1), you can use the...
by tesseraktik
Mon May 17, 2010 9:22 pm UTC
Forum: Mathematics
Topic: evaluating a certain integral.
Replies: 6
Views: 788

Re: evaluating a certain integral.

This integral function is called the logarithmic integral function , and to my knowledge, there is no easy way of evaluating it; you need to use a series expansion... ...and even then, you won't get a very friendly expression. If you do a Taylor expansion from some known point on the desired side of...
by tesseraktik
Mon May 17, 2010 4:19 pm UTC
Forum: Mathematics
Topic: What is this symbol?
Replies: 8
Views: 1265

Re: What is this symbol?

I would also like to point out that I think that that Venn diagram looks like boobs. In an attempt to remain on-topic: There is actually a specific empty set symbol in Unicode, '∅', which is different from 'Ø'. However, because it isn't available in all fonts, and looks just horrid in most of the on...
by tesseraktik
Mon May 17, 2010 12:56 am UTC
Forum: Science
Topic: 2nd Law
Replies: 32
Views: 2061

Re: 2nd Law

Now, I'm not a physicist (I'm a physics student), but it seems to me that indeed, while there is no way that you could purposefully go against the second law of thermodynamics (because in any such effort you'd have to go through a process that would increase the net entropy of the universe), it's th...
by tesseraktik
Wed May 12, 2010 11:08 pm UTC
Forum: Language/Linguistics
Topic: tlhIngan Hol yIjatlh! (Klingon Practise)
Replies: 45
Views: 20266

Re: tlhIngan Hol yIjatlh! (Klingon Practise)

qurgh! naDev qaleghmo' jIbel! { qurgh! I am pleased to see you here! } tlhIngan 'ampaS «tlhIngan Hol mu'ghom mach»Daq « vomit » mu' tu'lu'be'. pIj mughwI'lIj, te'reS mu' chu' tetlh ghap vIlo' 'e' vIqawnIS. { The word "vomit" is not found in Klingonska Akademien's "Small Klingon Dicti...
by tesseraktik
Sun May 09, 2010 1:55 pm UTC
Forum: Language/Linguistics
Topic: Parlons Français ! [French practice]
Replies: 616
Views: 170727

Re: Parlons Français ! [French practice]

Tu as peut-être remarqué que je te tutoyais, quelques messages plus haut; en règle générale je crois que tu peux supposer que, si quelqu'un te tutoie, il trouvera normal que tu fasses pareil. Oui, je te tutoyais parce que tu me tutoyais... ...et parce que je ne crois pas que tu es un élitiste ;) Ed...
by tesseraktik
Wed May 05, 2010 6:35 pm UTC
Forum: Language/Linguistics
Topic: Parlons Français ! [French practice]
Replies: 616
Views: 170727

Re: Parlons Français ! [French practice]

Grop wrote:Merci; par contre on dit il faut pratiquer ou peut-être on doit pratiquer.Il est impersonnel dans ce genre de construction.
Ah, d'accord! Merci pour ton aide :)

Au fait: Je t'adresse à la deuxième personne du singulier. Est-ce la norme sur les forums?
by tesseraktik
Mon May 03, 2010 5:59 pm UTC
Forum: Language/Linguistics
Topic: Parlons Français ! [French practice]
Replies: 616
Views: 170727

Re: Parlons Français ! [French practice]

Salut tesseraktik, n'hésite pas à fréquenter ce fil, il est fait pour ça. Salut, Grop, et merci. C'est vrai, si on veut apprendre, on faut pratiquer! À propos le mauvais début de ta semaine, je suis désole; c'est terrible! Oui, en le relisant je vois que c'était un peu excessif. En tout cas, c'étai...
by tesseraktik
Mon May 03, 2010 5:07 pm UTC
Forum: Science
Topic: "Shape" of the universe (edge and center threads merged)
Replies: 73
Views: 6470

Re: "Center" of the universe

It's a good video. But it lacks something. He gives the classical example of a balloon. Which is a good example. But many people will immidiately remark: "But wait a minute, a balloon does have a centre!", and that needs addressing. The answer is that space is the surface of the balloon, ...
by tesseraktik
Mon May 03, 2010 4:51 pm UTC
Forum: Science
Topic: "Shape" of the universe (edge and center threads merged)
Replies: 73
Views: 6470

Re: "Center" of the universe

The following video explains the basics quite well (in spite of the unfortunate choice of background music): http://www.youtube.com/watch?v=i1UC6HpxY28
by tesseraktik
Mon May 03, 2010 4:25 pm UTC
Forum: Language/Linguistics
Topic: Parlons Français ! [French practice]
Replies: 616
Views: 170727

Re: Parlons Français ! [French practice]

Pour ce qui est des langues construites, je m'en fous pas mal. Je te demanderais ce que tu entends par là, mais ces propos odieux sont vraiment dignes d'un troll. Je ne suis pas certain que j'ai bien compris ce que tu as dit, mais je t'assure: Je ne suis pas un troll! Je suis juste une personne qui...
by tesseraktik
Sun May 02, 2010 7:08 pm UTC
Forum: Science
Topic: Is the fundamental unit of space a cube?
Replies: 30
Views: 2504

Re: Is the fundamental unit of space a cube?

I was reading today about Zeno's Paradoxes (http://en.wikipedia.org/wiki/Zeno's_paradoxes), and immediately upon reading the first two I figured that the problems could be easily solved with a fundamental unit of space. After a significant amount of daydreaming following this, I asked myself, shoul...
by tesseraktik
Sun May 02, 2010 3:24 pm UTC
Forum: Language/Linguistics
Topic: Mimicking accents
Replies: 72
Views: 11219

Re: Mimicking accents

I can't really "do accents", but I tend to pick up the language patterns of the people around me. For instance, I normally can't do a good Scottish accent to save my life, but after spending a few days in Glasgow and Edinburgh people started thinking I was a local. Once I got back to Stock...

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