Search found 17 matches

by Sporefrog
Sat Jan 16, 2010 10:52 pm UTC
Forum: Science
Topic: Electron configuration
Replies: 10
Views: 2996

Re: Electron configuration

Are you just looking for basic information like for a freshman chemistry class, or something more in-depth? I can provide some of the very basics of electron orbitals, and then maybe someone else can provide a more detailed answer if you need that. Electrons exist only in a few allowable, "quan...
by Sporefrog
Wed Dec 02, 2009 9:01 am UTC
Forum: Science
Topic: Help a biologist with thermodynamics!
Replies: 6
Views: 1197

Re: Help a biologist with thermodynamics!

Let me put it easier: The entropy of the system is reduced by the formation of a bilayer. But the system becomes more stable by formig layers in which the molecules are surrounded by favoured interactions. This means that the system looses energy which is emitted as heat. That additional heat incre...
by Sporefrog
Thu Nov 19, 2009 5:33 pm UTC
Forum: Science
Topic: Microwaving food - hazardous or not?
Replies: 45
Views: 5144

Re: Microwaving food - hazardous or not?

A microwave oven is perfectly safe, and the link you have arguing otherwise really should never, ever have been posted in a science discussion. Or any discussion involving people that are just slightly more bright than your average monkey. That said, I don't actually use it very much myself - not b...
by Sporefrog
Sun Apr 12, 2009 3:32 am UTC
Forum: Science
Topic: Physics: Doppler Effect on the Speed of Light
Replies: 5
Views: 801

Re: Physics: Doppler Effect on the Speed of Light

Thanks a lot everyone! We were using the equation our teacher gave us in class to no avail. Good to know we needed an equation that he never mentioned.

Thanks for the help!
by Sporefrog
Sun Apr 12, 2009 2:52 am UTC
Forum: Science
Topic: Physics: Doppler Effect on the Speed of Light
Replies: 5
Views: 801

Physics: Doppler Effect on the Speed of Light

I'm trying to figure out at what fraction of the speed of light one would have to be traveling to see red light (630nm) as green (530nm). Using (630nm-530nm)/630nm=v/c we came up with .1587 times the speed of light, but it's apparently wrong (so says the online homework program). Anyone have any ide...
by Sporefrog
Tue Mar 31, 2009 4:50 am UTC
Forum: News & Articles
Topic: Very Hot Coffee/Tea Increases risk of Cancer
Replies: 42
Views: 4060

Re: Very Hot Coffee/Tea Increases risk of Cancer

An increase in mutation rate is, by definition, an increase in cancer rate. Cancer is, in most cases (say, a tumor virus), a buildup of mutations of genes ANY single cell that cause it to divide uncontrollably, and override the many safety mechanisms the body has in place. There is a base-line mutat...
by Sporefrog
Thu Mar 26, 2009 8:33 am UTC
Forum: General
Topic: Hype your ripe snipes 'n' gripes
Replies: 28619
Views: 3584727

Re: Rant Thread

I'm sorry this is a bit delayed, but I needed to calm down and write something I wouldn't regret. -- Although it's socially not acceptable to say offensive things, it's not within yours, or anyone's right to tell you to NOT say something. If you say something offensive (whether it is purposely or a...
by Sporefrog
Fri Mar 13, 2009 7:18 am UTC
Forum: News & Articles
Topic: Pi Day
Replies: 16
Views: 3098

Re: Pi Day

RealGrouchy wrote:Heh, I saw the post above that said "too bad I'm a day late" and totally took a double take.

- RG>


Wow, I just the post above about being a day late and totally did a double take, too -.-
by Sporefrog
Wed Feb 25, 2009 7:24 am UTC
Forum: Science
Topic: Fun with Resistors, Arizona State University style
Replies: 17
Views: 2701

Re: Fun with Resistors, Arizona State University style

Ahh, thank you all very much. So my misunderstanding of both methods was a misunderstanding of the ability of KVL to apply to any loop. I have to say, shame on that TA, that was pretty easy :P Incidentally, our professor spoke for a great deal of time about equivalent resistance and capacitance, and...
by Sporefrog
Wed Feb 25, 2009 5:20 am UTC
Forum: Science
Topic: Fun with Resistors, Arizona State University style
Replies: 17
Views: 2701

Re: Fun with Resistors, Arizona State University style

Thank you everyone for the responses. For ATCG's method: I'm not really sure how you can say that the 2 ohm resistor is (92.5V - 66V = 26.5V). KVL states that the total voltage across all resistors in the circuit is equal to zero, so isn't it just saying that the voltage of R, the 1-ohm resistor, AN...
by Sporefrog
Wed Feb 25, 2009 2:16 am UTC
Forum: Science
Topic: Fun with Resistors, Arizona State University style
Replies: 17
Views: 2701

Re: Fun with Resistors, Arizona State University style

I have a basic understanding of how to find equivalent resistance, and how to apply Ohm's Law to the various segments of a circuit, but at some point my understanding breaks down when trying to determine the exact voltage or current through a particular portion of the circuit. Starting with the seco...
by Sporefrog
Wed Feb 25, 2009 12:04 am UTC
Forum: Science
Topic: Fun with Resistors, Arizona State University style
Replies: 17
Views: 2701

Fun with Resistors, Arizona State University style

So I'm really bad at electricity and magnetism. Considering my brother's an electrical engineer working for Nvidia, I figured I should make some attempt to figure out what he's doing all day and actually try in my college physics classes, unlike the 1 I got on the AP physics test in high school. We ...
by Sporefrog
Sun Aug 03, 2008 8:49 am UTC
Forum: News & Articles
Topic: Iran and Israel Exchange Threats
Replies: 76
Views: 6571

Re: Iran and Israel Exchange Threats

All of this talk about whether one side was justified 'shooting through civilians' or hiding behind them or whatnot is silly. Nobody takes into account the context of a whole conflict (you're reducing its justification to a single event that you have no knowledge of), nor does it take into account t...
by Sporefrog
Wed Feb 27, 2008 9:29 pm UTC
Forum: News & Articles
Topic: Nader Enters U.S. Presidential Race
Replies: 84
Views: 9874

Re: Nader Enters U.S. Presidential Race

There's an easy solution to this 'practical decision of making the best choice' vs 'idealistic decision of voting for who you would want in office, no matter how small their chances.' Vote for Obama or whoever because he's the lesser of evils, and the smarter choice, for now, because our system suck...
by Sporefrog
Tue Nov 27, 2007 6:15 pm UTC
Forum: Serious Business
Topic: Thinking Too Much (Trademarked)
Replies: 65
Views: 6065

Re: Thinking Too Much (Trademarked)

I have accepted that the angst cycle is a physiological thing, and thus solutions that don't solve the issues I'm thinking about are acceptable ways to stop worrying. In fact, you'll probably be in a better position to solve them when you aren't fretting or worried. I have to say that this is a ver...
by Sporefrog
Mon Nov 26, 2007 6:28 pm UTC
Forum: Serious Business
Topic: Thinking Too Much (Trademarked)
Replies: 65
Views: 6065

Re: Thinking Too Much (Trademarked)

My post couldn't have been that incoherent :P
by Sporefrog
Thu Nov 22, 2007 8:32 am UTC
Forum: Serious Business
Topic: Thinking Too Much (Trademarked)
Replies: 65
Views: 6065

Re: Thinking Too Much (Trademarked)

Wow, this topic hits very close to home for me. (I joined xkcd to respond, in fact). This post is going to probably be very long, but I've spent a lot of time thinking about this problem, and hopefully have a lot of perspective to offer. I've been told on numerous occasions that I think too much, an...

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