Search found 1911 matches

by Charlie!
Sat Mar 17, 2018 7:21 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1968: "Robot Future"
Replies: 31
Views: 3963

Re: 1968: "Robot Future"

Charlie! pictured: Someone builds an AI that does what you tell it to do. that's crazy, they already there, all the machines. But nobody talks the right language. Yeah, it's not AI that does what we tell it that's needed, but AI that ignores what we actually say, and does what we mean instead. Or e...
by Charlie!
Fri Mar 16, 2018 8:23 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1968: "Robot Future"
Replies: 31
Views: 3963

Re: 1968: "Robot Future"

Image
by Charlie!
Mon Sep 26, 2016 8:16 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1738:"Moon Shapes"
Replies: 66
Views: 12049

Re: 1738:"Moon Shapes"

(#3) OR DURING THE DAY.
by Charlie!
Tue Jul 07, 2015 11:50 pm UTC
Forum: Science
Topic: How can gluons interact via color force?
Replies: 8
Views: 2259

Re: How can gluons interact via color force?

In practice, you calculate the number that's the "amount of reality" of exchanging 1 gluon, exchanging 2 gluons, exchanging 3 gluons, etc. In many cases, if you try to calculate the expected number of gluons, it really does go to infinity - the series of "amount of reality" decre...
by Charlie!
Tue Mar 05, 2013 3:12 am UTC
Forum: Science
Topic: Best proofs of evolution
Replies: 392
Views: 49441

Re: Best proofs of evolution

I think the general consensus is that people aren't going to carefully read something they don't want to. So pictures are worth a thousand words. http://mikeely.files.wordpress.com/2010/01/human-evolution-tree.jpg http://www.prehistoricstore.com/newitems/m1389.jpg Another good example is the evoluti...
by Charlie!
Mon Oct 22, 2012 4:24 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1124: "Law of Drama"
Replies: 67
Views: 16537

Re: 1124: "Law of Drama"

Huh. When I say "I don't like drama," it usually means that I'm advising someone to be honest / apologize / forgive, or being honest / apologizing /forgiving. That is, avoiding drama often is best done by doing things I think are very nice.
by Charlie!
Wed Oct 03, 2012 9:46 pm UTC
Forum: Serious Business
Topic: Atheism as a civil rights movement
Replies: 570
Views: 48311

Re: Atheism as a civil rights movement

If they don't care enough to ask, they're obviously not very committed to oppressing based on it. this is kind of a silly statement. so, basically, just to go completely nutso here; if, during the 40's black people could "hide" their blackness by just not disclosing it during the intervie...
by Charlie!
Sat Sep 29, 2012 7:12 pm UTC
Forum: Science
Topic: Radiation pressure and this "Mass" thing
Replies: 15
Views: 3572

Re: Radiation pressure and this "Mass" thing

Congrats! You've re-invented Le Sage's theory of gravitation! It's cool! And wrong! Because we don't measure the drag force it predicts, and relativity works really well! Exclamation point!
by Charlie!
Sat Sep 29, 2012 7:04 pm UTC
Forum: Science
Topic: Microphysics -> Macrophysics in a cellular automaton
Replies: 8
Views: 3885

Re: Microphysics -> Macrophysics in a cellular automaton

Are you familiar with Von Neumann measurement? That's a closely related idea you might find helpful.
by Charlie!
Mon Sep 24, 2012 4:16 pm UTC
Forum: Serious Business
Topic: Is it possible to have a rational debate on global warming?
Replies: 1714
Views: 293034

Re: Is it possible to have a rational debate on global warmi

Pretty sure that says 235 (342-107, for 168+67 absorbed) W/m^2 makes it into the climate system, and 235 W/m^2 makes it out. Correct (well, the number seem a little off, but whatever) - the difference from the greenhouse effect is mostly to decrease the "outgoing longwave radiation" part ...
by Charlie!
Thu Sep 20, 2012 8:33 pm UTC
Forum: Fictional Science
Topic: Second Law of Thermodynamics: STFU
Replies: 26
Views: 11569

Re: Second Law of Thermodynamics: STFU

To create radiation with homeopathy, you would obviously have to take something that treats radiation poisoning and dilute it to 30X. Potassium iodide is used to treat radiation poisoning.... Actually homeopathy is not obvious. Homeopathy doesn't use a diluted cure, it uses a diluted "symptom&...
by Charlie!
Wed Sep 05, 2012 6:06 pm UTC
Forum: Fictional Science
Topic: What alternatives to Creation VS Evolution are there?
Replies: 59
Views: 15848

Re: What alternatives to Creation VS Evolution are there?

You could do evolution + time loops, which would give you things like rabbits in the time of the dinosaurs. Or you could have physical laws that actually promote a certain kind of evolution by acting directly on living things or on genetic material - like "guided evolution," but minus the ...
by Charlie!
Sat Sep 01, 2012 12:15 am UTC
Forum: Science
Topic: Life on Venus
Replies: 14
Views: 3819

Re: Life on Venus

We surely won't find many close to the ground, but as much as I understand, the upper atmosphere hasn't been explored much, and even if there was a lot of them, I don't think we would have noticed. By "see" I mean literally looking - I assume people have at least done spectroscopy on Venus.
by Charlie!
Fri Aug 31, 2012 1:44 am UTC
Forum: Science
Topic: Life on Venus
Replies: 14
Views: 3819

Re: Life on Venus

You know, I don't think we have any exobiologists in here. Maybe it's that we don't see a bunch of complicated organic molecules.
by Charlie!
Fri Aug 24, 2012 7:20 pm UTC
Forum: Science
Topic: Billiard balls - where does the energy go?
Replies: 25
Views: 5023

Re: Billiard balls - where does the energy go?

Okay, here is my experiment performed under rigerous lab conditions... http://www.flickr.com/photos/26781520@N08/7843117146/ which I think demonstrates that they stop dead... (but I'm not certain as there may have been one or two minor problems with my precision-engineered equipment) Did you notice...
by Charlie!
Thu Aug 23, 2012 5:23 am UTC
Forum: Science
Topic: 'Big Freeze', not 'Big Bang', says pop science site
Replies: 3
Views: 1079

Re: 'Big Freeze', not 'Big Bang', says pop science site

Sounds like science journalism of articles written by other science journalists. It's usually bad enough looking at the world through one layer of fuzzy marshmallow. But yes, this is about what loop quantum gravity predicts as a consequence of a big bang (not a replacement). And the thing it predict...
by Charlie!
Tue Aug 21, 2012 5:37 pm UTC
Forum: Science
Topic: Important Scientific Papers
Replies: 17
Views: 6218

Re: Important Scientific Papers

bigglesworth wrote:
Later, because the investigators were unable to cite an unpublished work, 1 submitted it for publication at their requests.


So basically, blame her friends too :P
by Charlie!
Sun Aug 19, 2012 10:54 pm UTC
Forum: Science
Topic: Question about superheating water
Replies: 12
Views: 3203

Re: Question about superheating water

Hm. Was the water still or was it convecting? If it was still, the piece of wood might just have not been in the right place.
by Charlie!
Sun Aug 19, 2012 10:50 pm UTC
Forum: Science
Topic: Action of a continuous matter field
Replies: 6
Views: 1656

Re: Action of a continuous matter field

Dirac doesn't say. Since he is using this set-up in deriving Einstein's equation R^{\mu\nu} - \frac{1}{2} g^{\mu\nu}R = -8\pi\rho v^\mu v^\nu and that the matter moves along geodesics, I imagine it would have to be pretty general, but I think it is fair to make whatever assumptions you think make p...
by Charlie!
Sun Aug 12, 2012 4:12 pm UTC
Forum: Science
Topic: escaping a black hole?
Replies: 61
Views: 20267

Re: escaping a black hole?

Diemo wrote:So, what is happening here is that as you get closer and closer to the event horizon, there is still light that is escaping, but it is taking longer and longer to escape.

This is misleading - light always travels at c. It really does work as if time flows differently at different places.
by Charlie!
Sat Aug 11, 2012 5:06 pm UTC
Forum: Science
Topic: specific heat capacity of degenerate electron gas
Replies: 8
Views: 4146

Re: specific heat capacity of degenerate electron gas

Here: http://www.cmmp.ucl.ac.uk/~ikr/3225/Section%206.pdf Equation 6.22 They do a good job explaining in the pdf. To explain the symbols on the far-right equation: Pi is pi, K b is boltzmann's constant, T is the temperature, N is the number of electrons, and e F is the fermi energy, which can be cal...
by Charlie!
Sat Aug 11, 2012 12:26 am UTC
Forum: Science
Topic: Important Scientific Papers
Replies: 17
Views: 6218

Re: Important Scientific Papers

There are probably lists of important papers out there for specific fields.

Depending on how much quantum mechanics you know, the famous Quantum Teleportation paper is a good read, or you could go for the no-cloning theorem if you want something easier.
by Charlie!
Fri Aug 10, 2012 10:11 pm UTC
Forum: Science
Topic: escaping a black hole?
Replies: 61
Views: 20267

Re: escaping a black hole?

"No light coming from below" is merely the point at which the black hole takes up more than half of the sky. Even outside the black hole ( http://i.dailymail.co.uk/i/pix/2010/12/08/article-1336832-0C618BF4000005DC-829_634x493.jpg ), there is part of the sky where no light comes from - it c...
by Charlie!
Thu Aug 02, 2012 6:45 am UTC
Forum: Serious Business
Topic: What does a 21st Century Library Look Like?
Replies: 24
Views: 5493

Re: What does a 21st Century Library Look Like?

A good children's section, and maybe a meeting room especially for groups of children (e.g. school groups, local organizations). This means having a person there to keep an eye on kids, lots of color, lower shelves, furniture that kids will enjoy, children's books, a space with some toys, and maybe ...
by Charlie!
Thu Aug 02, 2012 6:36 am UTC
Forum: Science
Topic: A real water world (merged with "a big ball of water")
Replies: 154
Views: 35234

Re: A real water world (merged with "a big ball of water")

Which raises the point, unless there is some mechanism (or organism) to bring the minerals from bones back to the surface, there will end up being a pretty heavy nutrient deficiency. At the center of the planet, would there just be a ball of crushed, compressed bone? (i.e. limestone). If you're sta...
by Charlie!
Tue Jul 31, 2012 6:12 am UTC
Forum: Science
Topic: A real water world (merged with "a big ball of water")
Replies: 154
Views: 35234

Re: A real water world (merged with "a big ball of water")

I was born in a water moon...
by Charlie!
Sun Jul 29, 2012 9:44 pm UTC
Forum: Science
Topic: Saladmaster Baking Soda Test
Replies: 23
Views: 99929

Re: Saladmaster Baking Soda Test

Or they could paint some acid on the inside of their pans to neutralize the baking soda. Did they heat up the pan first and then put the water in second, which would disguise chemical reaction?

Did the water from their pan taste salty?
by Charlie!
Mon Jul 23, 2012 3:39 am UTC
Forum: Science
Topic: QM - Time Ordering Operator
Replies: 28
Views: 6372

Re: QM - Time Ordering Operator

Ah, interesting. A simple example: suppose you had an operator A(t), and an operator B(t) = A(-t). Then A(1)A(2) = B(-1)B(-2), but if you time-order both sides, T{A(1)A(2)} = A(2)A(1) while T{B(-1)B(-2)} = B(-1)B(-2). Our equality just became unequal. Magical. One way to salvage this would be if A(1...
by Charlie!
Sat Jul 07, 2012 7:36 pm UTC
Forum: Science
Topic: A question about nitrogen
Replies: 6
Views: 3619

Re: A question about nitrogen

Hi, I'm studying for an organic chemistry exam and I've run into something I can't quite understand. Literally everywhere in my book and online it says that "N has five valence electrons", so going by the octet rule of thumb, nitrogen should be able to form three covalent bonds, however w...
by Charlie!
Sat Jul 07, 2012 7:32 pm UTC
Forum: Science
Topic: Worst thing you've seen in a lab
Replies: 256
Views: 227528

Re: Worst thing you've seen in a lab

In primary school, my physics teacher tried to measure the melting point of sugar. The thermometer went like 80°C - 120°C - 160°C - and then the tip of the thermometer melted off. (He then commented that we had observed a phase transition from the solid phase to the smelly phase.) What kind of ther...
by Charlie!
Thu Jul 05, 2012 6:46 pm UTC
Forum: Serious Business
Topic: A small, specific question about libertarianism
Replies: 667
Views: 67170

Re: A small, specific question about libertarianism

leady wrote:Oh and I refuse to accept that there is a good rate of unemployment

:|

Perhaps if you had come across this idea outside of an "us vs. them" situation, you would consider it differently. I hope so, at least.
by Charlie!
Sat Jun 23, 2012 10:25 am UTC
Forum: Science
Topic: Mechatronics vs Nanotech
Replies: 4
Views: 1966

Re: Mechatronics vs Nanotech

Mechatronics clearly has the cooler name.
by Charlie!
Mon Jun 18, 2012 12:01 pm UTC
Forum: Serious Business
Topic: A small, specific question about libertarianism
Replies: 667
Views: 67170

Re: A small, specific question about libertarianism

Ormurinn wrote:ending/ameliorating human suffering isn't an intrinsic good - it doesn't provide a direct benefit to people
:|

I think you can figure out all the obvious things I'd say about this if you re-read it 5 times.
by Charlie!
Thu Jun 14, 2012 1:08 am UTC
Forum: Fictional Science
Topic: Things a Perfect logician would Discover
Replies: 40
Views: 13081

Re: Things a Perfect logician would Discover

He would have to assume that something put him in this world, even if it's not a god. Or maybe whatever he comes up with would be equivalent to a god, from his point of view. It's hard for anyone to tell because we've been raised in... well, in this world, which is full of history and culture, and ...
by Charlie!
Tue Jun 05, 2012 6:43 pm UTC
Forum: Science
Topic: Object Tracking Technologies
Replies: 12
Views: 2663

Re: Object Tracking Technologies

How about putting three (infrared?) light sources on there at a specific wavelength and then taking a photo at that wavelength. Then you can find the distance and angle from the shape of the triangle. At non-small angles this runs into trouble if your sources are 3d objects, so maybe shine the light...
by Charlie!
Tue Jun 05, 2012 6:37 pm UTC
Forum: Serious Business
Topic: A small, specific question about libertarianism
Replies: 667
Views: 67170

Re: A small, specific question about libertarianism

In the view of some libertarians (me included) just going about your daily life can be an aggressive act if you don't take reasonable precautions to prevent yourself from spreading disease. This means that if you have a very dangerous and contagious disease, and you don't voluntarily go into quaran...
by Charlie!
Sat May 26, 2012 10:05 pm UTC
Forum: Serious Business
Topic: What does a language require for philosophy to be possible?
Replies: 30
Views: 5077

Re: What does a language require for philosophy to be possib

All languages appear to be fairly similar in their potential to express thoughts. They might lack extensive vocabulary for a particular domain, but all languages easily extend their vocabulary. Not really a "language" thing, more of a "humans are awesome" thing :D Though the dis...
by Charlie!
Sat May 26, 2012 9:24 am UTC
Forum: Science
Topic: Bioreactor pump
Replies: 9
Views: 5348

Re: Bioreactor pump

Another way to do it might be to use a small valve - keep constant pressure on one side with a pump or a reservoir or something, and just find the right setting for the valve.
by Charlie!
Sat May 26, 2012 6:35 am UTC
Forum: Serious Business
Topic: What does a language require for philosophy to be possible?
Replies: 30
Views: 5077

Re: What does a language require for philosophy to be possib

If statements classified as "philososphy" can contain anything (if necessary, by referring to it), then in order to express all possible statements classified as philosophy, a language has to contain everything. If we just want "some philosophy" to be possible, then it seems reas...

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