Search found 536 matches

by Oort
Mon Mar 28, 2011 4:21 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0878: "Model Rail"
Replies: 98
Views: 29824

Re: 0878: "Model Rail"

Just went to the wiki page. It seems obvious that H0 is the correct notation, not HO. Wonder what xkcd's take was.
by Oort
Sun May 09, 2010 7:05 am UTC
Forum: General
Topic: What effect would changes in gravity have on evolution?
Replies: 10
Views: 1400

Re: What effect would changes in gravity have on evolution?

If Superman has taught us anything, it's that higher gravity would produce Kryptonians who would appear to have superstrength in Earth gravity.
by Oort
Fri May 07, 2010 12:49 am UTC
Forum: School
Topic: Should I switch to engineering?
Replies: 4
Views: 1159

Should I switch to engineering?

I'm a college freshman at UC Berkeley. I'm studying math and physics right now, but i'm concerned about the job market, especially if I don't want to get a master's or go into academia. Switching to mech e would be difficult because I'm a semester behind, but possible. Does anyone have any experienc...
by Oort
Tue Mar 23, 2010 9:13 am UTC
Forum: School
Topic: "When am I going to use this?"
Replies: 127
Views: 21278

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

It's quite possible that they'll never use it. You can ask whether that matters though. Did no one read this? It's beautiful. I wasn't very impressed with it. He seemed to assume children would have the same interests as he does, and says that math should be taught as an art for art's sake, because...
by Oort
Sat Feb 13, 2010 6:45 am UTC
Forum: Science
Topic: Black Hole Decay
Replies: 24
Views: 2768

Re: Black Hole Decay

Is it possible to measure the charge of a black hole? I would think that if light can't escape, neither can the effects of charge, if electromagnetism travels by photons.
by Oort
Wed Dec 30, 2009 11:27 am UTC
Forum: Movies and TV Shows
Topic: Sherlock Holmes Movie
Replies: 79
Views: 13367

Re: Sherlock Holmes Movie

I noticed that
Spoiler:
Holmes makes reference to going "down the rabbit hole." Would this have been accurate? Sherlock holmes appeared in print not too long after Alice in Wonderland.
by Oort
Wed Dec 16, 2009 8:48 am UTC
Forum: General
Topic: Something on Youtube
Replies: 2087
Views: 641429

Re: Something on Youtube

A guy who does instructional videos. This one, for example, is about electric potential energy.
http://www.youtube.com/watch?v=elJUghWS ... tube_gdata
by Oort
Sat Dec 05, 2009 11:04 pm UTC
Forum: Science
Topic: Is the definition of conduction rigorous?
Replies: 8
Views: 1949

Is the definition of conduction rigorous?

Wikipedia defines it as: "In heat transfer, conduction (or heat conduction) is the transfer of thermal energy between neighboring molecules in a substance due to a temperature gradient." Radiation is transfer of heat through photons. But at atomic scales, interactions between particles are...
by Oort
Thu Nov 26, 2009 12:17 pm UTC
Forum: Mathematics
Topic: Some points on mathematical logic and "rigor"
Replies: 27
Views: 3943

Re: Some points on mathematical logic and "rigor"

antonfire wrote:We prefer effective proofs, we avoid proofs by contradiction.

A little off-topic here, but do mathematicians try to avoid proof by contradiction? I imagined they were popular...
by Oort
Mon Nov 23, 2009 8:18 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0666: "Silent Hammer"
Replies: 113
Views: 24445

Re: "Silent Hammer" Discussion

I don't get the last panel. What's an "owner's card" and what does it have to do with skeptics?
by Oort
Sun Nov 22, 2009 10:12 am UTC
Forum: Science
Topic: "total mechanical energy of Earth's orbital motion"
Replies: 20
Views: 4673

Re: "total mechanical energy of Earth's orbital motion"

I've been reading about it, but then don't you have the same sort of problem, which is that when r=0 the potential energy equals negative infinity?
by Oort
Sun Nov 22, 2009 7:12 am UTC
Forum: Science
Topic: "total mechanical energy of Earth's orbital motion"
Replies: 20
Views: 4673

Re: "total mechanical energy of Earth's orbital motion"

In school i read that potential energy = mgh. Is it different in space for some reason? The concept of negative potential energy confuses me.
by Oort
Sat Nov 21, 2009 4:04 am UTC
Forum: Books
Topic: Over-analysing books and School
Replies: 97
Views: 17657

Re: Over-analysing books and School

to internetmeme, do you by any chance go to Albany High, I ask because I have never heard of anyone else's class talking about the rape metaphor in Lord Of The Flies. Mine did, in San Francisco. I think it's pretty common. Below is an image from a webcomic (Cat and Girl). I think it explains pretty...
by Oort
Thu Nov 12, 2009 2:14 am UTC
Forum: Books
Topic: Over-analysing books and School
Replies: 97
Views: 17657

Re: Over-analysing books and School

If we can create or discover our own meaning in a book, can we just say we didn't find any? Because that won't work in school. Isn't it possible that the color of Gatsby's car doesn't mean anything other than that he likes yellow cars? Sometimes trying to find a theme in a book feels like an exercis...
by Oort
Wed Oct 28, 2009 10:33 pm UTC
Forum: News & Articles
Topic: Obama declares swine flu a national emergency
Replies: 39
Views: 2895

Re: Obama declares swine flu a national emergency

http://www.theonion.com/content/news_briefs/obamas_declaration_of_swine Obama's Declaration Of Swine Flu Emergency Prompts Pro-Swine-Flu Republican Response WASHINGTON—Claiming that the president was preying on the public's fear of contracting a fatal disease last week when he declared the H1N1 ...
by Oort
Sun Oct 04, 2009 5:28 am UTC
Forum: Science
Topic: Laser Sails. A relatively tough astrophysics problem...
Replies: 13
Views: 2193

Re: Laser Sails. A relatively tough astrophysics problem...

At high speeds the doppler effect would start to matter wouldn't it? But maybe that's not supposed to be considered.
by Oort
Fri Sep 25, 2009 3:41 am UTC
Forum: News & Articles
Topic: UC Schools Protest Budget Cuts
Replies: 65
Views: 4693

Re: UC Schools Protest Budget Cuts

Yeah. As a UC student i'm concerned.
by Oort
Tue Sep 22, 2009 3:39 am UTC
Forum: Science
Topic: Eight billion years from now
Replies: 30
Views: 2195

Re: Eight billion years from now

Tidal forces from the moon and sun will slow down the Earth's rotation. We lose a fraction of a second every year. Meanwhile, the moon is moving farther by and inch or two every year. After a couple billion i think it's supposed to fly off.
by Oort
Sun Sep 20, 2009 5:52 am UTC
Forum: Books
Topic: The Greatest Show on Earth: The Evidence for Evolution
Replies: 18
Views: 2897

Re: The Greatest Show on Earth: The Evidence for Evolution

New Scientist gave an interesting review of it (http://www.newscientist.com/article/mg20327256.400-review-the-greatest-show-on-earth-by-richard-dawkins.html). Was this the same New Scientist that did that "Oh me yarm Darwin was wrong!!!" headline? Sometimes I think they should change the ...
by Oort
Wed Sep 16, 2009 5:14 am UTC
Forum: Books
Topic: The Greatest Show on Earth: The Evidence for Evolution
Replies: 18
Views: 2897

Re: The Greatest Show on Earth: The Evidence for Evolution

New Scientist gave an interesting review of it (http://www.newscientist.com/article/mg2 ... wkins.html).
by Oort
Thu Sep 03, 2009 1:04 am UTC
Forum: Science
Topic: Human random numbers
Replies: 61
Views: 15251

Re: Human random numbers

I just did a chi-squared test.
Chi squared equals 62.497 with 19 degrees of freedom.
The two-tailed P value is less than 0.0001
By conventional criteria, this difference is considered to be extremely statistically significant.

So according to graphpad.com the distribution is nonrandom.
by Oort
Mon Aug 17, 2009 11:14 pm UTC
Forum: News & Articles
Topic: Lower US life expectancy not due to healthcare
Replies: 34
Views: 3194

Re: Lower US life expectancy not due to healthcare

Wait - they're only looking at two types of cancer and using them to judge the entire health care system? Not a good idea.
by Oort
Fri Aug 14, 2009 7:39 am UTC
Forum: Movies and TV Shows
Topic: Things you remember watching but can't remember the name of
Replies: 756
Views: 252981

Re: Things you remember watching but can't remember the name of

Old movie. Action/adventure I think. Like Hercules or Conan or something like that. I watched it in the 90's or so, so not too recent. They were fighting a god I think, because there was a big face made of ice which they got to by boat by sailing far north.
by Oort
Tue Aug 04, 2009 6:41 am UTC
Forum: Serious Business
Topic: Americans responsible for majority of healthcare innovations
Replies: 20
Views: 12732

Re: Americans responsible for majority of healthcare innovations

I read an interesting commentary on that list just recently. In response to the point quoted in the OP, he said america is responsible for most scientific research in general, and it's no surprise we produce many medical products. But Britain and other countries make advances too despite national he...
by Oort
Mon Aug 03, 2009 8:01 am UTC
Forum: News & Articles
Topic: Gorilla HIV in humans
Replies: 14
Views: 1589

Re: Gorilla HIV in humans

I think he meant, why does a gorilla have human immunodeficiency virus. Eh, maybe I'm wrong.
by Oort
Fri Jul 31, 2009 12:14 am UTC
Forum: News & Articles
Topic: They've found the SPACE CHEESE!
Replies: 17
Views: 1529

Re: They've found the SPACE CHEESE!

The "interstellar cheddar" landed in Cressex


Those are low standards for "interstellar." :roll:
by Oort
Sat Jul 11, 2009 9:22 pm UTC
Forum: School
Topic: Summer is killing meee :(
Replies: 10
Views: 1841

Re: Summer is killing meee :(

Learn relativity! Or calculus or statistics or w/e your level is.
by Oort
Fri Jul 10, 2009 12:48 am UTC
Forum: News & Articles
Topic: Synthetic Tree
Replies: 63
Views: 3454

Re: Synthetic Tree

What will they do with the carbon though? Can't just accumulate 800 kg of it per day.
by Oort
Fri Jul 03, 2009 7:26 am UTC
Forum: Science
Topic: Does the width of a superconducting wire matter?
Replies: 15
Views: 2354

Re: Does the width of a superconducting wire matter?

I meant how would it affect resistance.

Thanks for the answers. So now I'm wondering, how is current limit determined and is it affected by width (diameter)?
by Oort
Fri Jul 03, 2009 5:05 am UTC
Forum: Science
Topic: Does the width of a superconducting wire matter?
Replies: 15
Views: 2354

Does the width of a superconducting wire matter?

I figured it wouldn't, but would a large current make a difference?
by Oort
Sat May 09, 2009 3:27 am UTC
Forum: General
Topic: The Sartorial Elegance Thread.
Replies: 41
Views: 6797

Re: The Sartorial Elegance Thread.

As somebody currently looking for a suit (have to get one, or at least rent one, for prom), I don't know where to go. Any ideas? Macy's and Nordstrom were pretty expensive. I'm, a, new to suits.
by Oort
Sat Mar 28, 2009 9:36 pm UTC
Forum: News & Articles
Topic: Real Robot cephalopod being built - we are all doomed
Replies: 11
Views: 1211

Re: Real Robot cephalopod being built - we are all doomed

Am I the only one looking forward to my new Dr. Octopus arms?
by Oort
Mon Mar 16, 2009 5:44 am UTC
Forum: General
Topic: Good fractals to draw/doodle?
Replies: 11
Views: 2534

Re: Good fractals to draw/doodle?

I like the Hilbert curve. Learned about it on xkcd in fact.
by Oort
Sat Mar 07, 2009 8:52 pm UTC
Forum: Books
Topic: fiction as a form of convseration
Replies: 18
Views: 2808

Re: fiction as a form of convseration

Sorry about that. My bad.
by Oort
Sat Mar 07, 2009 9:56 am UTC
Forum: Books
Topic: fiction as a form of convseration
Replies: 18
Views: 2808

Re: fiction as a form of convseration

Spinoza wrote:Children should be exposed to ... Goethe's Sorrows of Young Werther (...it caused copycat suicides among the young men who read it...)


You have to admit, it doesn't sound very...inspiring. :wink:
by Oort
Mon Mar 02, 2009 8:11 am UTC
Forum: School
Topic: Coolest school projects, making schoolwork fun
Replies: 46
Views: 4312

Re: Coolest school projects, making schoolwork fun

I'm totally curious about reading these.
by Oort
Fri Feb 20, 2009 7:43 am UTC
Forum: Books
Topic: How do you read?
Replies: 136
Views: 21030

Re: How do you read?

Dangit, this is just like telling someone to be conscious of their breathing. I tried to examine my reading style but was too self-conscious to act normally.
by Oort
Mon Feb 09, 2009 7:32 am UTC
Forum: School
Topic: Teachers that cannot teach
Replies: 473
Views: 65931

Re: Teachers that cannot teach

jakemaheu wrote:Unrelated: Did you know that they don't distribute condoms anymore in schools? I guess they lose like 5% of their school funding if they do.


Mine does. Maybe it's regional.
by Oort
Sun Dec 28, 2008 6:50 am UTC
Forum: Books
Topic: Starting Discworld?
Replies: 27
Views: 7435

Re: Starting Discworld?

Started with Going Postal. Pretty good, didn't need to know about any other books.

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