magicTCG 内の SymmetricG によるリンク Sundial Cheese Deck(help wanted)

[–]TalksInMaths 0ポイント1ポイント  (0子コメント)

Just so you know, "next end step" means exactly that. So if you skip your own end step with sundial, the delayed trigger you skipped (eg. exiling a creature) still happens on the next end step, usually your opponent's end step.

http://blogs.magicjudges.org/rulestips/2012/04/the-next-end-step-means-the-very-next-one-to-begin-usually-in-the-same-turn/

askscience 内の [deleted] によるリンク Even before Einstein theorized E=mc^2, wouldn't it have been highly suspect given that scientists knew that stars were made of hydrogen and helium, yet didn't know what made them "burn?"

[–]TalksInMaths 1ポイント2ポイント  (0子コメント)

Besides the other points made here, your question is anachronistic. The composition of stars was not properly understood until 20 years after Einstein published his paper on mass-energy equivalence.

science 内の Skeptical_John_Cook によるリンク Science AMA Series: I am John Cook, Climate Change Denial researcher, Climate Communication Fellow for the Global Change Institute at the University of Queensland, and creator of SkepticalScience.com. Ask Me Anything!

[–]TalksInMaths 19ポイント20ポイント  (0子コメント)

To be specific, do you see any correlation between climate change denial and creationism/biblical literalism? It seems to me that both groups (climate change deniers and creationists) focus their arguments around the idea that "scientists have a secret agenda and are lying to you."

Edit: or at least they push the idea that, "scientists can't agree on anything and don't really know what they're doing."

AskReddit 内の Khan993 によるリンク Reddit, what's a happy sounding song that is actually sad ?

[–]TalksInMaths 11ポイント12ポイント  (0子コメント)

So many by Death Cab fit this description, but I think their most extreme case of "upbeat but actually depressing" is The Sound of Settling.

exchristian 内の LakashY によるリンク Recreating a "hymn book"?

[–]TalksInMaths 0ポイント1ポイント  (0子コメント)

I think if there's any song that could be called an atheist/humanist "hymn," it would have to be Do you Realize?? by the Flaming Lips.

AskHistorians 内の caffarelli によるリンク Tuesday Trivia | Whose Line is it Anyway? Historical Misquotes

[–]TalksInMaths 4ポイント5ポイント  (0子コメント)

Einstein probably never referred to the cosmological constant as "the biggest blunder of my life." It appears those words were put into his mouth by George Gamow.

AskReddit 内の The_Gcm によるリンク What movie is deeper than most people think it is?

[–]TalksInMaths 0ポイント1ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

That movie was based on the book by Michael Ende, a German writer who grew up during World War II. Among the many atrocities he witnessed were the bombing of his home city of Munich and the banning and destruction of his father's artwork (a surrealist painter) for being "degenerate." When I learned this, it gave so much more meaning to the G'mork's lines:

Atreyu: But why is Fantasia dying, then?

G'mork: Because people have begun to lose their hopes and forget their dreams. So the Nothing grows stronger.

Atreyu: What is the Nothing?

G'mork: It's the emptiness that's left. It's like a despair, destroying this world. And I have been trying to help it.

Atreyu: But why?

G'mork: Because people who have no hopes are easy to control; and whoever has the control... has the power!

I also love the scene with Atreyu and the Childlike Empress where she explains how Bastion has become part of the Neverending Story by reading about Atreyu and sharing in his adventures. If you pay attention, she goes on to say that we, the audience have become part of the Neverending Story by watching and sharing in Bastion's adventures:

Childlike Empress: He doesn't realize that he's already a part of the Neverending Story.

Atreyu: The Neverending Story, what's that?

Childlike Empress: Just as he is sharing all your adventures, other's are sharing his. They were with him when he hid from the boys in the bookstore.

Bastian: But that's impossible!

Childlike Empress: They were with him when he took the book with the Auryn symbol on the cover, in which he's reading his own story right now.

So the "Neverending Story" is not simply the book Bastion is reading, or the movie. It's the entire, shared human experience of imagination and storytelling. And whenever we read a story (or watch a movie, etc.) and become so caught up in it that we identify with the characters, we are participating in that Neverending Story.

God, I love that movie!

askscience 内の squirrelbuster94 によるリンク Chemists/physicists of reddit, what is the difference between dark, anti, and normal matter?

[–]TalksInMaths 1ポイント2ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

Is it correct to say that matter as we know it "dominates" the type of matter that exists in the universe, and that anti-matter is a rare anomalous occurance?

Exactly!

If that is the case then are there any papers which attempt to explain why one type of matter (as I can imagine a universe in which anti-matter dominates) dominates the universe in the first place?

That's the whole puzzle! As far as we can tell, matter and antimatter behave (almost) exactly the same besides having opposite charge, weak hypercharge and such. We have discovered some cases where they behave slightly differently, but the difference is not nearly large enough, or of the right type, to explain the matter excess.

As for why we have an excess of matter and not an excess of antimatter, that's simply an issue of naming. If we lived in a universe with excess antimatter, we would call antimatter matter and matter antimatter.

askscience 内の squirrelbuster94 によるリンク Chemists/physicists of reddit, what is the difference between dark, anti, and normal matter?

[–]TalksInMaths 0ポイント1ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

Yeah, I glossed over that process a little. Really we'd need at least one more particle involved to conserve momentum in all reference frames. W bosons are very short lived, and they're usually produced in processes like beta decay. This is when a neutron changes to a proton by emitting a W- which then decays as I described. In this case the W- is just an intermediate particle. We start with one particle, and we end with two particles and an antiparticle, so baryon number is still conserved.

AskReddit 内の TankTan38 によるリンク What's the weirdest thing you have memorized?

[–]TalksInMaths 0ポイント1ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

I memorized it to the tune of "In the Hall of the Mountain King":

3.14159 265 358 9793238462643

3832795 028 841 9716939937510

That's as far as I ever got.

AskReddit 内の TankTan38 によるリンク What's the weirdest thing you have memorized?

[–]TalksInMaths 0ポイント1ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

3.141592653589793238464643383279502884197

askscience 内の squirrelbuster94 によるリンク Chemists/physicists of reddit, what is the difference between dark, anti, and normal matter?

[–]TalksInMaths 5ポイント6ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

My point is there's no such thing as "pure energy." The matter and antimatter don't just disappear. They turn into new particles, usually with less mass and more kinetic energy, thus "releasing" a lot of energy.

askscience 内の squirrelbuster94 によるリンク Chemists/physicists of reddit, what is the difference between dark, anti, and normal matter?

[–]TalksInMaths 8ポイント9ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

They combine and turn into pure energy

new particles, often photons, but also new particle-antiparticle pairs.

askscience 内の squirrelbuster94 によるリンク Chemists/physicists of reddit, what is the difference between dark, anti, and normal matter?

[–]TalksInMaths 295ポイント296ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

"Antimatter" is like normal matter, but with the charges swapped.

While it's true that the antiparticle of any charged particle will have opposite charge, this isn't really what defines antimatter.

In any particle interaction where particles are created or destroyed, they always have to appear or disappear in particle/antiparticle pairs. For example, a neutral pion might decay into an electron-positron pair.1 Or an electron-positron pair might annihilate into pure energy a pair of photons. In this second example, since they are produced in a pair like this, the two photons would be antiparticles of each other. There are some interactions where particles are produced as a particle of one type and an antiparticle of a different type. For example, a W- boson may decay into an electron and an electron-antineutrino. In this example, we don't describe the particles as being "created" (or "annihilated" in the inverse process), but it's still required that one product is a particle and the other is an antiparticle. This is required so that the process obeys all the requisite conservation laws (charge, energy, momentum and others).

So for every type of particle, there is a corresponding antiparticle. Particles and their antiparticles are identical in some properties (eg. mass) and are opposite in some properties (eg. charge). Some particles and their antiparticles (eg. photons) have all the same properties, and so we say that they are their own antiparticles. However, not all neutral particles are their own antiparticles. For example, neutrons and anti-neutrons are distinct particles even though they have the same mass and no charge. Neutrinos are an interesting case because they may be their own antiparticles, or they may not be. It's one of the big unanswered questions in modern physics.

Edit, Another interesting point I forgot:

Since particles and antiparticles are always created or destroyed in pairs, we would expect there to be an equal amount of matter and antimatter in the Universe. However, all observational evidence indicates that there is more matter than antimatter. This is known as the baryon asymmetry and is another one of the big unanswered questions in modern physics.


1 and a photon, to conserve 4-momentum.

rpg 内の thadrine によるリンク Did anyone ever actually finish this? World's Largest Dungeon

[–]TalksInMaths 13ポイント14ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

I played through it with a group a few years ago. Our DM encouraged us to make ridiculously overpowered, min-maxed characters (level 7 ECL to start if I remember correctly). We were required to use a race or template with at least a +1 level adjustment. I started as a blink dog rogue (got permission from the DM). It took us about two years, I think. We ended at something-teenth level (I don't really remember). Everyone's first characters died except one, a winged kuo-toa cleric.

We saw less than half of the dungeon, but what we did see was pretty fun. It's broken up into several large zones (about a dozen, I think), each of which is the size of a small adventure module. And it actually had a halfway decent story to it. However, the DM complained a lot about typos, contradictions and bad formatting.

funny 内の mykalb によるリンク A friend spotted this on a car in their town

[–]TalksInMaths -1ポイント0ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

learnmath 内の ZOMBIE002 によるリンク [Self Directed Studies] Where does one go after multivariable calculus?

[–]TalksInMaths 1ポイント2ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

Have you studied any of these fields?

  • real analysis

  • complex analysis

  • abstract algebra/group theory

  • topology

Any one of these would be a good next step.

learnmath 内の ZOMBIE002 によるリンク [Self Directed Studies] Where does one go after multivariable calculus?

[–]TalksInMaths 7ポイント8ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

Depends on what you want to learn and what you've studied already, but the usual sequence is to do either linear algebra or differential equations right after multivariable calc.

boardgames 内の TalksInMaths によるリンク [Pandemic] Is it just me, or does the contingency planner totally suck?

[–]TalksInMaths[S] 6ポイント7ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

As some others in this thread have said, it's too random. The other roles have abilities that are useful every turn. The contingency planner's ability is useable at most five times, and then only if a new event card has come up.

AskReddit 内の dr_henry_jones によるリンク What movie were you really excited for that totally let you down when you finally saw it?

[–]TalksInMaths 9ポイント10ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

Star Wars episode 1

boardgames 内の TalksInMaths によるリンク Question about buying Agricola

[–]TalksInMaths[S] 0ポイント1ポイント  (0子コメント)

ごめんなさい。これは既にアーカイブしてあり、もう投票はできません。

Thanks!