Search found 208 matches

by tantalum
Mon Jun 29, 2009 3:21 pm UTC
Forum: Serious Business
Topic: Discrimatory statistics, is it really discrimination?
Replies: 39
Views: 5296

Re: Discrimatory statistics, is it really discrimination?

I would guess that the reason discriminatory statistics is so abominable (at least in the U.S.) is because individualism is so strong here. Here, everyone is a free agent and should be treated on a case-by-case basis, or so we all like to think. Imagine China. If you were a chinese citizen and the g...
by tantalum
Tue May 12, 2009 1:22 am UTC
Forum: Science
Topic: ITT: Speculate wildly about alien life! (merged threads)
Replies: 78
Views: 7715

Re: Astrobiology speculations

I would assume that all life in our solar system to be from the same origin, which is a large supposition to be sure. That's kind of like saying, "If we assume 1=2,which is a large supposition to be sure..." So what happens if indeed there was life on Mars, and we drive it to extinction? ...
by tantalum
Fri May 08, 2009 8:46 pm UTC
Forum: Science
Topic: World without Iron
Replies: 31
Views: 7218

Re: World without Iron

So another role iron plays in the Earth is as a heavy weight. Iron and nickel are the heaviest common metals on Earth, and during the formation of the Earth, these heavy liquid metals would have sunk into the center of the core, leaving lighter silicate minerals to crust up on the top, much like you...
by tantalum
Fri May 08, 2009 11:43 am UTC
Forum: Science
Topic: World without Iron
Replies: 31
Views: 7218

Re: World without Iron

you're all thinking too advanced

Without an iron core in the Earth, we wouldn't be generating a magnetic field that keeps the solar radiation away. The Earth would be constantly nuked by radiation, and no life would develop to begin with. Sorry, fellas
by tantalum
Wed Apr 29, 2009 9:44 pm UTC
Forum: Science
Topic: Chemistry help?
Replies: 7
Views: 1056

Re: Chemistry help?

ugh. can people who haven't taken anything past high school chem NOT answer anything outside their area of expertise? all the responses in this thread so far are horribly naive, not useful, and only confusing. Soil alkalinity usually falls in between ph= 5 and ph = 9, where anything outside this ran...
by tantalum
Sun Mar 29, 2009 3:56 am UTC
Forum: Science
Topic: Recommend me a Chemistry Book
Replies: 4
Views: 1053

Re: Recommend me a Chemistry Book

There's an advanced Zumhdal's book that's pretty good. Atkins has one, Oxtoby/Nachtrieb has one. I've never seen the Pauling book, but i assume it's much older than these recent books. Then again, basic chemistry hasn't changed drastically since Pauling's days. Organic chemistry certainly has advanc...
by tantalum
Fri Mar 27, 2009 1:54 pm UTC
Forum: Science
Topic: John Conway: Twin, Spin, Fin!
Replies: 12
Views: 1963

Re: John Conway: Twin, Spin, Fin!

headprogrammingczar wrote:Also, it is completely meaningless without a definition of free will. Just about every philosophical debate I have ever been in has ended with me saying "what does that even mean?!" and no one can find an answer.


/thread
by tantalum
Wed Mar 25, 2009 4:02 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0560: "Lithium Batteries"
Replies: 92
Views: 18315

Re: Lithium Batteries discussion

why is there no alt-texT?
by tantalum
Thu Mar 12, 2009 1:15 am UTC
Forum: Science
Topic: Expensive Colleges
Replies: 24
Views: 2804

Re: Expensive Colleges

If you like being in a top-notch environment and meeting awesome people, you should definitely pick the expensive college. I'm at MIT, and there are interesting seminars by famous people all the time, as well as unique events that you simply don't get at state colleges. Also, being in a fishbowl wit...
by tantalum
Wed Mar 04, 2009 8:41 pm UTC
Forum: Science
Topic: Are preservatives bad for you?
Replies: 45
Views: 8201

Re: Are preservatives bad for you?

Enjoy your mold, bacteria, and toxins. I'm sure they're healthier for you than all those preservatives you're eating, right? I mean, they're natural. What's more natural than some good ole E. coli?
by tantalum
Sun Mar 01, 2009 7:36 pm UTC
Forum: Science
Topic: Best way to lower boiling point of water?
Replies: 22
Views: 12702

Re: Best way to lower boiling point of water?

hold on.. i'd like to say that most of these replies are complete bullshit. Tell us details of your heat pump and why you think a phase-change is an important part of your heat pump. If you're looking for a quick solution.. generally, the easiest, most drastic way to change the boiling point is by m...
by tantalum
Sat Feb 28, 2009 3:28 pm UTC
Forum: Science
Topic: An odd global warming idea.
Replies: 29
Views: 3927

Re: An odd global warming idea.

http://en.wikipedia.org/wiki/Earth%27s_energy_budget

This link should explain everything about the earth's energy sources..
by tantalum
Thu Feb 12, 2009 11:05 pm UTC
Forum: Science
Topic: What's your favorite element? and the one you hate the most?
Replies: 98
Views: 10155

Re: What's your favorite element? and the one you hate the most?

As an organic chemist, I would be betraying myself if I didn't say carbon was the most interesting element. You simply can't beat carbon for flexibility. The fact that all of chemistry can be divided into carbon chemistry and non-carbon chemistry says quite a bit about carbon. As for my least favori...
by tantalum
Sun Jan 25, 2009 12:01 am UTC
Forum: Science
Topic: Is consuming DNA safe? (not what you think. perverts.)
Replies: 39
Views: 5977

Re: Is consuming DNA safe?

If I remember correctly, the most popular method by which they produce 200proof ethanol is azeotropic removal of water with benzene... leading to residual traces of benzene in the resulting ethanol. Your particular provider of 200proof ethanol might use another method to remove water, but... you hav...
by tantalum
Sat Jan 10, 2009 5:43 am UTC
Forum: Science
Topic: Need help with titration calculations
Replies: 4
Views: 2483

Re: Need help with titration calculations

for future reference: acid-base reactions are among the fastest known reactions, so stoorafa's hypothesis that it was reacting slowly is extremely implausible. More plausible is that you didn't properly choose your indicator, and therefore, you misjudged when the titration was actually over.
by tantalum
Sat Jan 10, 2009 5:36 am UTC
Forum: Science
Topic: NMR shielding and deshielding effects on protons (chemistry)
Replies: 11
Views: 7160

Re: NMR shielding and deshielding effects on protons (chemistry)

holy shit that previous post was extremely verbose and didn't actually say anything new.

I thought I established that given ChemDraw's estimations, it was highly likely that the textbook had a typo in it switching the two values?...
by tantalum
Thu Jan 08, 2009 3:56 am UTC
Forum: Science
Topic: NMR shielding and deshielding effects on protons (chemistry)
Replies: 11
Views: 7160

Re: NMR shielding and deshielding effects on protons (chemistry)

Here is ChemDraw's prediction of the NMR spectrum of bromoethane. The predictions match up surprisingly well with what your book cites... which leads me to believe it's probably a mistake. I'm only familiar with the computational aspect/deciphering spectra aspect of NMR and am not very well versed i...
by tantalum
Mon Jan 05, 2009 12:04 am UTC
Forum: Science
Topic: Good lies to tell small children (scienced up!)
Replies: 11
Views: 3053

Re: Good lies to tell small children (scienced up!)

There's already enough shit entering children's heads from wherever.... their minds are like sponges, absorbing all information. Information learned during childhood also tends to have that "accepted as unquestionably true" factor to it, whereas information given during young adult years t...
by tantalum
Fri Dec 26, 2008 12:21 am UTC
Forum: Science
Topic: Ziploc bags in Microwaves
Replies: 11
Views: 2416

Re: Ziploc bags in Microwaves

Simply air doesn't absorb microwaves, so the "expanding air" argument is BS. Especially because to go from 300K -> 400K means only a 33% increase in volume. I don't know what condition the bag is in. If it's air-free, flattened, straight out of the box but still expanded in the microwave, ...
by tantalum
Mon Dec 22, 2008 2:57 pm UTC
Forum: Science
Topic: Stopping the Earth's Rotation
Replies: 5
Views: 1513

Re: Stopping the Earth's Rotation

when you get the car up to speed in the first place, you're pushing against the earth to gain that traction/momentum... which, of course, pushes the earth in the opposite direction. You might say that "no, since we're hauling the cart up vertically and letting gravity do the acceleration, we're...
by tantalum
Mon Dec 22, 2008 2:54 pm UTC
Forum: Serious Business
Topic: Climate Change / Global Warming
Replies: 257
Views: 54266

Re: Global Warming or Global Cooling?

there was a study done that concluded that higher levels of carbon dioxide helps weeds grow tremendously and release more pollen. You're right that it helps plants, but not necessarily the ones we want to help... a quick google search turned up this, there's probably more out there. http://www.mindf...
by tantalum
Thu Dec 18, 2008 1:25 am UTC
Forum: Serious Business
Topic: Morality and Logic
Replies: 117
Views: 13346

Re: Can morality be based on logic?

To give an example, imagine this: "Is it morally right to kill someone?" From a logical perspective, maybe you could give some reason like "killing people reduces the chances of the population's survival, so you shouldn't do it". But then why do you care about the population's su...
by tantalum
Fri Dec 12, 2008 11:48 pm UTC
Forum: Science
Topic: Elevator and ball
Replies: 11
Views: 1802

Re: Elevator and ball

Something I'm confused about. If the elevator never reaches downwards accelerations greater than g , then the ball will never rise above the plate. If the elevator does reach downward acceleration greater than g , then the ball would never "fall" back down, it would continue to rise upward...
by tantalum
Wed Dec 10, 2008 8:14 am UTC
Forum: Science
Topic: How much of the periodic table do you have memorized?
Replies: 36
Views: 6178

Re: How much of the periodic table do you have memorized?

I know the elements that have an association to organic chemistry... H,Li,Na,K,Cs Ca,Mg B, Al C,Si,Sn,Pb N,P,As O,S,Se F,Cl,Br,I He/Ar Ti,V,Mn,Cr,Fe,Co,Ni,Cu,Zn Zr, Pd, Ag, Ru, Rh, Pt, Au These are the ones I can think of off the top of my head. If you see blaring missed entries (like rubidium), it ...
by tantalum
Tue Dec 09, 2008 6:31 pm UTC
Forum: Science
Topic: [BIOCHEMISTRY] Amino acids in substance
Replies: 17
Views: 2075

Re: [BIOCHEMISTRY] Amino acids in substance

Puree, digest with conc HCL, and separate amino acids with gel electrophoresis. Carbs should stay in center; nucleotides might migrate, though.
by tantalum
Wed Dec 03, 2008 5:51 am UTC
Forum: Science
Topic: What's up with Polyyne?
Replies: 18
Views: 2211

Re: What's up with Polyyne?

Are these molecules actually unstable? Wikipedia doesn't mention anything about instability, and wikipedia is god. In a weird way, I think it's possible that a hunk of polyyne would probably be very rigid because of the occasional 2+2+2 cycloaddition reactions fusing chains together. In that way it ...
by tantalum
Sat Nov 29, 2008 4:47 am UTC
Forum: Science
Topic: Electrolaser
Replies: 7
Views: 2764

Re: Electrolaser

That isn't necessarily the wavelength that ionizes nitrogen... looking at the MO diagram for nitrogen, that probably just does some sort of p(x/y) -> pi*(x/y) transition. The pi(x/y) -> free electron transition probably occurs at some other frequency.
by tantalum
Thu Nov 27, 2008 3:29 pm UTC
Forum: Science
Topic: Time travel paradoxes
Replies: 58
Views: 6290

Re: Time travel paradoxes

I think that when you say you "travel to the past" another copy of yourself need not be created. Imagine your life as a really long, immersive video system where you get to experience the five senses in real time and have the illusion of being able to control the video (This is kinda assum...
by tantalum
Wed Nov 19, 2008 3:18 pm UTC
Forum: Serious Business
Topic: Inequality of information
Replies: 25
Views: 3767

Re: Inequality of information

I myself was very much like you at one point, in that I believed that information should be readily available in any subject you could think of - and when an issue comes up, I would be able to research and decide for myself. A friend pointed out to me, though: What's the point of having doctors if y...
by tantalum
Mon Nov 17, 2008 3:29 pm UTC
Forum: Science
Topic: Solved.
Replies: 2
Views: 852

Re: Rate of Reaction - Simple question.

Yes, you're exactly right: it will take some time for the more concentrated solution to drop to the same level as the less concentrated solution, and then from there, the solutions will behave identically (This assuming that the zinc retains an equal surface area throughout the reaction)
by tantalum
Sun Nov 16, 2008 11:07 pm UTC
Forum: Serious Business
Topic: Drugs in America, the War on Drugs, and What Should Change
Replies: 191
Views: 14976

Re: Drugs in America, the War on Drugs, and What Should Change

point #1: Pushing the market underground causes prices to rise. Pharmaceutical companies could probably provide the entire U.S. demand for LSD for less than a million dollars (probably as low as 10,000$). This in turn, fuels illegal drug production by gangs, Afghanistan, North Korea, etc. Legalizing...
by tantalum
Thu Nov 13, 2008 2:52 am UTC
Forum: Science
Topic: iGEM
Replies: 4
Views: 1110

Re: iGEM

I stopped by to browse some of the exhibits and grabbed some free food. I didn't participate, though.
by tantalum
Wed Nov 12, 2008 5:12 am UTC
Forum: Science
Topic: ÿ
Replies: 67
Views: 6038

Re: Faster than the Speed of Light-Without violating relativity

What does it even mean to move space around a particle, rather than having the particle move through space? Relativity says that they are one and the same. Also, relativity says that velocities are not purely additive - i.e., if I'm in a spaceship traveling at 9/10ths the speed of light and I turn o...
by tantalum
Tue Nov 11, 2008 6:05 pm UTC
Forum: Science
Topic: Help! Need more graphic representations of science!
Replies: 46
Views: 12962

Re: Help! Need more graphic representations of science!

[edit #2] Best of all, you can get a free printout (roughly 5`x4`) from Roche, if you're a student/in academia How exactly? I'm a high school biology teacher in Thailand, and I would love to get a couple to put on the walls of my 11th and 12th grade classrooms, since we spend a good portion of both...
by tantalum
Tue Nov 11, 2008 3:40 am UTC
Forum: Science
Topic: Help! Need more graphic representations of science!
Replies: 46
Views: 12962

Re: Help! Need more graphic representations of science!

http://www.expasy.ch/cgi-bin/show_thumbnails.pl A brief chart of a (small) portion of biochemical reactions known to occur in various organisms. This chart covers most of the fundamental pathways, and there are countless more specialized pathways used to construct complex natural products. Best of ...
by tantalum
Sun Nov 09, 2008 6:42 am UTC
Forum: Site/Forum issues
Topic: Slashdot-like rating system?
Replies: 12
Views: 3032

Slashdot-like rating system?

This is especially regarding the Serious Business forum: Is there any way that the forum layout can support voting on the quality of a post, and to not display low-voted posts, similar to what slashdot does? It would make going through long thread much quicker and it would summarize the best points ...
by tantalum
Sat Nov 01, 2008 3:51 pm UTC
Forum: Language/Linguistics
Topic: How does the brain learn music?
Replies: 28
Views: 4578

Re: How does the brain learn music?

Chai - I obviously didn't mean that music is a language in the sense that you can communicate with it. I meant it in the sense that the brain parasitizes the language centers of the brain to do the processing for music. Sign language obviously does not use the voice, yet it undeniably uses the langu...
by tantalum
Sat Nov 01, 2008 3:43 pm UTC
Forum: Serious Business
Topic: An article I wrote about 'power'
Replies: 6
Views: 1551

Re: An article I wrote about 'power'

http://books.google.com/books?hl=en&id=sZVy9rPNFx8C&dq=hannah+arendt+on+violence&printsec=frontcover&source=web&ots=2ijmtbha0j&sig=_2fiko8meQmnZHdYl_vEciRpxbQ&sa=X&oi=book_result&resnum=7&ct=result#PPT1,M1 pages 43-47 (If the link doesn't work, look up Hannah...
by tantalum
Thu Oct 30, 2008 6:29 am UTC
Forum: Language/Linguistics
Topic: How does the brain learn music?
Replies: 28
Views: 4578

Re: How does the brain learn music?

I wonder if you could consider playing the piano a language the same way sign language is a language. Does someone learning/using sign language invoke their language centers? Then it wouldn't be a stretch to say that playing piano requires processing power from the language centers. Also - I play pr...
by tantalum
Mon Oct 27, 2008 2:20 pm UTC
Forum: Language/Linguistics
Topic: WHO IS NOAM CHOMSKY! (or: how not to ask a question here)
Replies: 4
Views: 1626

Re: WHO IS NOAM CHOMSKY!

http://www.justfuckinggoogleit.com/sear ... am+chomsky

i think even a wikipedia link is too polite for this request that's in all caps.

Hey, internet noob. Yeah, you. Typing in all caps is the equivalent of screaming in someone's face. Don't do it.

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