> probably just as dense (if not denser Incorrect, both in the sense of mean density and in the sense of the density of most of the star.
> they are much, much hotter Incorrect.
> the bigger a star is, the hotter it must be to > equilibriate The more massive a star is. Not bigger. The discussion is big in terms in volume. And it's only hotter while it's on the main sequence/during the hydrogen burning phase.
> contrary to what you might expect, the bigger a > star is, the shorter its lifetime is, since it > has to consume its fuel so much faster. True for values of bigger==more massive.
See e.g. Carrol and Ostlie, chapters 10 and 13.
> So to answer your question, the reason these > stars don't become black holes is the same as > the reason that any supermassive stars don't. There is no "reason these stars don't become black holes." They likely are becoming black holes. The reason they aren't black holes is because they haven't gotten there yet. In the global sense, the black hole is a much, much lower energy state than a cloud of hydrogen, so it takes a long time to blow off all that energy.
> The only difference with these is that they burn > their fuel much faster than other stars, > and correspondingly, can be expected to snuff it > much sooner. Correct.
> I might be wrong about some of this, but I'm > pretty sure most of what I said is true, at > least to a first approximation. Um, better luck next time?:) You also lose points for not mentioning the Eddington limit, which is just so damn cool it should be mentioned in any discussion of stellar dynamics, even if it's not actually explained. (Eta Carinae, you're the one...)
Qualification: I'm a PhD candidate in astronomy. So, although astrophysics isn't my field, I at least know my stuff well enough to pass my comps.
Run a kernel-mode webserver?:)
Wow, you're right! I tried booting a kernel with no binary format support and it worked until it tried to pull up init. So the ELF/a.out option is only for the kcore format (it was phrased differently back in the 2.0 days, which is why I was confused). Not sure how you'd make the kernel not try to run init, though.
Doesn't this only work if you compile the ELF and a.out support into the kernel, or am I mistaken?
What exactly would one do with a Linux system that has neither ELF nor a.out support?
Uh, no. The iron has nothing to do with it--or, at least very little. Ferromagnetism really has nothing to do with it. It's all about plasma effects: charged particles can't travel transverse to a strong magnetic field since the v-cross-B force bends the path--think cyclotron.
This is a fairly nifty result--they're combining existing technique (Zeeman splitting measurements have been established for quite awhile as the means of measuring the field of sunspots) with some pretty serious equipment, and likely a lot of patience, to verify that the fields are strong enough to determine the shape of the plasma. Not a surprising result but a good piece of work just the same.
Please folks, especially if you're doing an ask slashdot, try to either expand your TLA's early on or make them clear from early context. Until I got to the end of the blurb I thought this was about user mode linux...and now, of course, I have no idea what it is. Background links welcome.
(this should answer the question of how I use UML...)
I had a bus-driver asking me what kind of education I had and from which filthy country I came from, when I asked him about a bus stop, and found out that I was on the wrong bus, and he had to take the bus to the side and let me get out
Don't worry too much; the regulars get the same sort of abuse (although not necessarily with the racist trappings). There's also a strong anti-bus stigma among the population at large: riding the train is trendy and cosmopolitan; riding the bus is ghetto. This trickles down to the operator's attitude.
Reading carefully, the second to last paragraph seems to be the lead-in to a list of other community-building activities. Then the last paragraph says they aren't "Samaritans," which wouldn't be anything like the impression one would get from the article as it stands.
I suspect an editor got chop-happy.
I'm amused by quotes from Scott McCloud and Infinium labs, though.
This also reflects what an acquaintance of mine calls "the blackinization of American culture." Leaving aside questions of accuracy, fidelity, respect, etc. etc., pop culture is reflecting more of an "African-American" sensibility. Most of it isn't much to my taste (read whatever racism into that you may like). Might be another example of the trends that culminated in Benny Goodman at Carnegie Hall or Elvis, or maybe it represents the end of white performers "introducing" a style to mainstream America. Either way, it's happening.
I do chuckle at the euphamism of "urban" especially since it's fairly disconnected from neo-urbanism.
I want nothing more than to see an episode of Babylon where Lita (augmented telepath) returns, removes the mind block from Garibaldi, and watch as Garibaldi does something truly evil to Bester. I mean, at the end, you are just gagging for Bester to get it.
You're not going to see that on screen. Go read the Psi Corps trilogy; on the whole a fairly well-written piece and better than most spin-off novels. (And it's Lyta).
It's hosted on a dynamic IP service..i.e. someone's home box. It has the slashdot "funny" icon on it. Even without being able to read TFA, I suspect you'll be disappointed.
Actually, I'm one to advocate bike helmets for the same reason I advocate seat belts. There's often some fairly high speeds involved and there's a lot of concrete around these days for kids to ram their heads into.
Helmets are great; I'm a convert (especially since I like my helmet-mount mirror). But proper riding techniques are better. The helmet's the last line of defense in safety and sadly over-emphasized. With kids, who are more likely to fall and still developing both motor skills and interaction with other traffic, they're most important.
To get back on topic, depending on temperment of the kid and financial situation, a bike can be a great gift.
Re:George Broussard of 3d realms' take on this
on
EA Games: The Human Story
·
· Score: 3, Insightful
Look, they're not slaves at that place, they can quit anytime they want. I don't think they'd be happy to loose their jobs.
Sure. You can quit anytime you want. Except, when you're working an eighty hour week, how do you line up another job? And you can't collect unemployment if you quit.
When Cassini isn't doing an encounter, it's sitting around doing pretty much nothing
Hardly true. Now, granted, I don't have the Cassini instrument duty-cycle schedule right here, but I can at least take a quick look at the projected orbit plots. It looks like apicenter is about 60-70 Rs. Frontside magnetopause distance is 20-25 Rs (roughly), the flanks are likely further out, and I'd put money on the tail extending at least 70 Rs. Even on the front side I'm sure there's plenty of science to be done in the sheath, bow shock, and even upstream solar wind.
So the plasma instruments and magnetometer would be busy for probably half the distance of each orbit. I imagine the cosmic dust analyzer is probably useful the whole time, and the UV cameras (I'm too lazy to compare the resolution to Hubble...). That's a lot of data.
And it really does come down pretty slow. At 35 kbit/s, that's roughly a day and a half, best case, to empty the recorders, out of approximately two weeks for an orbit (not always being in "view", either, and the DSN sometimes needed for other things...).
I'm sure somebody would find some use for extra storage if it were there, but the limitation doesn't mean Cassini's spending any great amount of time idle.
It seems scientists are pretty confident that they can unload much data during Cassini's 9 hours downlink session.
Imagine if there were some downtimes when earth communication cannot be established for a couple of days...
What would more storage buy you? It wouldn't increase the downlink bandwidth, and there's only so much time available to transfer it down, so you'd just get further and further behind. Losing downlink time means losing data, period.
Telemetry bandwidth is always an issue; instruments always produce data at a rate greater than can be sent to the ground.
"99 dead duelists of Dios on the wall; 99 dead duelists of Dios. Take one's ring, pass it around...."
It is not fair to make me laugh that loud in a shared office.
Thanks for the clarification, I couldn't remember all the details around the story.
Since I have a paper to write, I instead went googling after information to refresh my memory. I found this set of links, including a bit on Mystere.
one player (an evil character) in-game, making up some remarks or story about raping another player (a good character) in-game? Do you think that's acceptable role-playing, maybe just in bad taste, or, over the line and reason for some form of censure?
It depends entirely on the environment, and admins need to be quite clear on what level and sort of rp is expected--what sort of world people will create. Because that is what's going on, collective creation of a world. It's no different from a GM discussing with players that min-maxing won't be tolerated.
In the context of EQ it's pretty clear that such in-game activity is prohibited, and users have the right to expect freedom from such harassment.
On Ancient Dreams (MUD I used to play), the policy was that players are to be cooperative. No PK or PSteal, and if you so much as tried your character was flagged and attacked by pretty well every NPC--until the imms could get to your pfile and blow holes through it. That went for evil characters as well. I very dimly recall (and probably incorrectly) people being chastised for getting frisky right by the healer--such activity was OK but not out in public where any user could (and would) see. One of the imms even asked me if I was okay when I'd had a bad RL day and logged in to acid blast my character into oblivion a few times.
I wouldn't necessarily expect the same excessively friendly attitude every place, but I do think that, unless posted otherwise, people need to obey general conventions of politeness online. Of course that ideal has slipped considerably; even slash used to be a really friendly quiet place:) In particular I loathe the idea, altogether too common these days, that miscreants are entitled to treat an entire community as some sort of ready-made psychology experiment and complain about "taking things too seriously" when their trolling isn't accepted. It's like pissing in the well or kicking over an anthill.
But, in the context where it is pre-established that abusive RP is permitted and won't bring any OOC consequences, I have no problem with it. There's always the joy of IC consequences in those situations.
There was an incident years ago in EQ I think where someone playing a Dark Elf, either roleplayed or wrote about raping another in-game character.
You're missing an important point...the person wrote a story about her character being raped. Basically it was "look, I'm a Dark Elf, I'm evil, this is the background of my character that explains why." The character was underage; don't remember if the player was or not.
It was written and posted in some sort of fan board, not in the game (I don't recall if the board was in any way associated with Sony).
So the issue there was what a player has the right to write about one's own character, out of the game. A very different case from what a character, PC or NPC, is allowed to inflict on other PC's in game.
But as the Nature article points out, the accuracy of Ciufolini's work not yet certain, since the value is not absolutely the same as that predicted by relativity (only 99%, with an error of up to 10%)
What are you looking for? There's no such thing as "certain." In fact, this result is excellent--with 10% error bars, I'd be ecstatic to agree with predictions within 1%.
The bottom of the article has a break down of where the money for a $16 album goes. $1.60 goes to the artist
Initially, yes. Then from that $1.60 comes all of the money that the label figures the artist owes--usually including, for example, the cost of music videos and the like (despite that "marketing/promotion" line, performers often carry a huge share of that cost, and the labels decide how it's spent. Yes, the labels choose how much of and how to spend the artists' money....).
Others have mentioned tightvnc (which requires you to run a separate server if under X) or ultravnc (which is windows only and has a closed-source component). If you want to grab a window from an existing X server, use x11vnc. Between the three your bases should be covered.
The success of the whole mission now depends on the reliability of several single components, like the sensor in discussion.
That's what faster, cheaper, better is all about. Higher-risk, lower-cost missions. They're also considered a way to give younger people experience in running a mission (since not everybody can run, say, Cassini, and you'd like to have a way for them to build experience first), which means careers are getting torpedoed by not having the funding to do something completely redundant.
My advisor maintains that the best way to eliminate the cost of redundancy is to just plain build two spacecraft and expect one to fail. Of course then something fun happens, like an Ariane 5 and CLUSTER...
Slashdot Mirror
> certainly more massive
:) You also lose points for not mentioning the Eddington limit, which is just so damn cool it should be mentioned in any discussion of stellar dynamics, even if it's not actually explained. (Eta Carinae, you're the one...)
Correct.
> probably just as dense (if not denser
Incorrect, both in the sense of mean density and in the sense of the density of most of the star.
> they are much, much hotter
Incorrect.
> the bigger a star is, the hotter it must be to
> equilibriate
The more massive a star is. Not bigger. The discussion is big in terms in volume. And it's only hotter while it's on the main sequence/during the hydrogen burning phase.
> contrary to what you might expect, the bigger a
> star is, the shorter its lifetime is, since it
> has to consume its fuel so much faster.
True for values of bigger==more massive.
See e.g. Carrol and Ostlie, chapters 10 and 13.
> So to answer your question, the reason these
> stars don't become black holes is the same as
> the reason that any supermassive stars don't.
There is no "reason these stars don't become black holes." They likely are becoming black holes. The reason they aren't black holes is because they haven't gotten there yet. In the global sense, the black hole is a much, much lower energy state than a cloud of hydrogen, so it takes a long time to blow off all that energy.
> The only difference with these is that they burn
> their fuel much faster than other stars,
> and correspondingly, can be expected to snuff it
> much sooner.
Correct.
> I might be wrong about some of this, but I'm
> pretty sure most of what I said is true, at
> least to a first approximation.
Um, better luck next time?
Qualification: I'm a PhD candidate in astronomy. So, although astrophysics isn't my field, I at least know my stuff well enough to pass my comps.
Run a kernel-mode webserver? :)
Wow, you're right! I tried booting a kernel with no binary format support and it worked until it tried to pull up init. So the ELF/a.out option is only for the kcore format (it was phrased differently back in the 2.0 days, which is why I was confused). Not sure how you'd make the kernel not try to run init, though.
Doesn't this only work if you compile the ELF and a.out support into the kernel, or am I mistaken?
What exactly would one do with a Linux system that has neither ELF nor a.out support?
Uh, no. The iron has nothing to do with it--or, at least very little. Ferromagnetism really has nothing to do with it. It's all about plasma effects: charged particles can't travel transverse to a strong magnetic field since the v-cross-B force bends the path--think cyclotron.
This is a fairly nifty result--they're combining existing technique (Zeeman splitting measurements have been established for quite awhile as the means of measuring the field of sunspots) with some pretty serious equipment, and likely a lot of patience, to verify that the fields are strong enough to determine the shape of the plasma. Not a surprising result but a good piece of work just the same.
Please folks, especially if you're doing an ask slashdot, try to either expand your TLA's early on or make them clear from early context. Until I got to the end of the blurb I thought this was about user mode linux...and now, of course, I have no idea what it is. Background links welcome.
(this should answer the question of how I use UML...)
Don't worry too much; the regulars get the same sort of abuse (although not necessarily with the racist trappings). There's also a strong anti-bus stigma among the population at large: riding the train is trendy and cosmopolitan; riding the bus is ghetto. This trickles down to the operator's attitude.
There is a hole in the article....
Reading carefully, the second to last paragraph seems to be the lead-in to a list of other community-building activities. Then the last paragraph says they aren't "Samaritans," which wouldn't be anything like the impression one would get from the article as it stands.
I suspect an editor got chop-happy.
I'm amused by quotes from Scott McCloud and Infinium labs, though.
This also reflects what an acquaintance of mine calls "the blackinization of American culture." Leaving aside questions of accuracy, fidelity, respect, etc. etc., pop culture is reflecting more of an "African-American" sensibility. Most of it isn't much to my taste (read whatever racism into that you may like). Might be another example of the trends that culminated in Benny Goodman at Carnegie Hall or Elvis, or maybe it represents the end of white performers "introducing" a style to mainstream America. Either way, it's happening.
I do chuckle at the euphamism of "urban" especially since it's fairly disconnected from neo-urbanism.
MXC is reasonably amusing, but Takashi's Castle is drop-down hilarious, even raw. Somehow I doubt I'll ever get the chance to see it subbed.
I want nothing more than to see an episode of Babylon where Lita (augmented telepath) returns, removes the mind block from Garibaldi, and watch as Garibaldi does something truly evil to Bester. I mean, at the end, you are just gagging for Bester to get it.
You're not going to see that on screen. Go read the Psi Corps trilogy; on the whole a fairly well-written piece and better than most spin-off novels. (And it's Lyta).
It's hosted on a dynamic IP service..i.e. someone's home box. It has the slashdot "funny" icon on it. Even without being able to read TFA, I suspect you'll be disappointed.
In Soviet Russia, dupes in the comments get you.
Helmets are great; I'm a convert (especially since I like my helmet-mount mirror). But proper riding techniques are better. The helmet's the last line of defense in safety and sadly over-emphasized. With kids, who are more likely to fall and still developing both motor skills and interaction with other traffic, they're most important.
To get back on topic, depending on temperment of the kid and financial situation, a bike can be a great gift.
Sure. You can quit anytime you want. Except, when you're working an eighty hour week, how do you line up another job? And you can't collect unemployment if you quit.
Hardly true. Now, granted, I don't have the Cassini instrument duty-cycle schedule right here, but I can at least take a quick look at the projected orbit plots. It looks like apicenter is about 60-70 Rs. Frontside magnetopause distance is 20-25 Rs (roughly), the flanks are likely further out, and I'd put money on the tail extending at least 70 Rs. Even on the front side I'm sure there's plenty of science to be done in the sheath, bow shock, and even upstream solar wind.
So the plasma instruments and magnetometer would be busy for probably half the distance of each orbit. I imagine the cosmic dust analyzer is probably useful the whole time, and the UV cameras (I'm too lazy to compare the resolution to Hubble...). That's a lot of data.
And it really does come down pretty slow. At 35 kbit/s, that's roughly a day and a half, best case, to empty the recorders, out of approximately two weeks for an orbit (not always being in "view", either, and the DSN sometimes needed for other things...).
I'm sure somebody would find some use for extra storage if it were there, but the limitation doesn't mean Cassini's spending any great amount of time idle.
Imagine if there were some downtimes when earth communication cannot be established for a couple of days...
What would more storage buy you? It wouldn't increase the downlink bandwidth, and there's only so much time available to transfer it down, so you'd just get further and further behind. Losing downlink time means losing data, period.
Telemetry bandwidth is always an issue; instruments always produce data at a rate greater than can be sent to the ground.
Because it can go a hell of a lot faster when you remove the governor, and that's the first thing any unit does. 100MPH, no, but definitely 60.
"99 dead duelists of Dios on the wall; 99 dead duelists of Dios. Take one's ring, pass it around...."
It is not fair to make me laugh that loud in a shared office.
Since I have a paper to write, I instead went googling after information to refresh my memory. I found this set of links, including a bit on Mystere.
one player (an evil character) in-game, making up some remarks or story about raping another player (a good character) in-game? Do you think that's acceptable role-playing, maybe just in bad taste, or, over the line and reason for some form of censure?
It depends entirely on the environment, and admins need to be quite clear on what level and sort of rp is expected--what sort of world people will create. Because that is what's going on, collective creation of a world. It's no different from a GM discussing with players that min-maxing won't be tolerated.
In the context of EQ it's pretty clear that such in-game activity is prohibited, and users have the right to expect freedom from such harassment.
On Ancient Dreams (MUD I used to play), the policy was that players are to be cooperative. No PK or PSteal, and if you so much as tried your character was flagged and attacked by pretty well every NPC--until the imms could get to your pfile and blow holes through it. That went for evil characters as well. I very dimly recall (and probably incorrectly) people being chastised for getting frisky right by the healer--such activity was OK but not out in public where any user could (and would) see. One of the imms even asked me if I was okay when I'd had a bad RL day and logged in to acid blast my character into oblivion a few times.
I wouldn't necessarily expect the same excessively friendly attitude every place, but I do think that, unless posted otherwise, people need to obey general conventions of politeness online. Of course that ideal has slipped considerably; even slash used to be a really friendly quiet place :) In particular I loathe the idea, altogether too common these days, that miscreants are entitled to treat an entire community as some sort of ready-made psychology experiment and complain about "taking things too seriously" when their trolling isn't accepted. It's like pissing in the well or kicking over an anthill.
But, in the context where it is pre-established that abusive RP is permitted and won't bring any OOC consequences, I have no problem with it. There's always the joy of IC consequences in those situations.
You're missing an important point...the person wrote a story about her character being raped. Basically it was "look, I'm a Dark Elf, I'm evil, this is the background of my character that explains why." The character was underage; don't remember if the player was or not.
It was written and posted in some sort of fan board, not in the game (I don't recall if the board was in any way associated with Sony).
So the issue there was what a player has the right to write about one's own character, out of the game. A very different case from what a character, PC or NPC, is allowed to inflict on other PC's in game.
What are you looking for? There's no such thing as "certain." In fact, this result is excellent--with 10% error bars, I'd be ecstatic to agree with predictions within 1%.
99% +/- 10% is far better than 99.9% +/- .01%
Initially, yes. Then from that $1.60 comes all of the money that the label figures the artist owes--usually including, for example, the cost of music videos and the like (despite that "marketing/promotion" line, performers often carry a huge share of that cost, and the labels decide how it's spent. Yes, the labels choose how much of and how to spend the artists' money....).
So don't forget good old creative bookkeeping.
That would have worked, except Paint it Black is Stones.
Others have mentioned tightvnc (which requires you to run a separate server if under X) or ultravnc (which is windows only and has a closed-source component). If you want to grab a window from an existing X server, use x11vnc. Between the three your bases should be covered.
That's what faster, cheaper, better is all about. Higher-risk, lower-cost missions. They're also considered a way to give younger people experience in running a mission (since not everybody can run, say, Cassini, and you'd like to have a way for them to build experience first), which means careers are getting torpedoed by not having the funding to do something completely redundant.
My advisor maintains that the best way to eliminate the cost of redundancy is to just plain build two spacecraft and expect one to fail. Of course then something fun happens, like an Ariane 5 and CLUSTER...