Yeah. I'm glad I could enlighten you concerning the coldness of antarctica. If there's anything else obviously facetious I can do to help you learn more about the world around you, just let me know.
This makes me happy. I knew there were still paleontological digs and studies going on around the world, but I didn't know any were in Antarctica. (For those of you who don't know, it's COLD there.) It doesn't sound like these new discoveries have anything anatomical to make them significant otherwise, but the fact that paleotology found a useful place to do research in Antarctica bares out a good reminder that there's still a lot of stuff we don't know, even in fields unrelated to particle physics, nanoengineering, genetics, astrophysics, mathematics, or any other fields that see a lot of coverage in science.slashdot.org.
The russians have had some pretty impressive successes in their space program, but the past half-decade was spent with them falling behind in their ISS obligations and being unable to pay for their part of the commitment. Most of the trips to the space station to switch out crews, etc., have been financed by NASA, not Russia, even though they've been on Soyuz craft.
This announcement should be taken with a HUGE grain of salt. The Russians have spent a lot of time lately claiming "anything you can do I can do better" with regards to American plans for space, but until they have flight tests of a six man module, we can probably give it the same level of credence we should have given the X-33, OSP, and several other defunct NASA programs.
I wouldn't cross your fingers about NASA's future plans for exploration either.
Flawed analogy perhaps, but it does lead to an interesting line of thought. There's plenty of evidence to suggest that Columbus knew right where he was going and was just using sailing to the Indies as a pretext for going. But it wasn't prominent philosophers (before they were called scientists) who provided the motive for going.
Why did people come and explore? Because they wanted to understand the cultures and operation of things around the new world? No, because they wanted to exploit the land and conditions there for their own benefit. Whether that was the extreme distance from the home land or the large amounts of gold or whatever, the motive for going was control: economic control, religious control, etc.
The new world was not explored before it was exploited. Cortez had hit the ground running and the Spanish had toppled the Aztec and Inca governments before there was any real exploration. They had their foothold, they had what they had come for, and then they started looking around. "God, Gold, and Glory" is the Jr. High version of their motives, but it's fairly accurate. In every successful colonization or venture into new places, it was one of these three motives.
I don't know much about the Viking history in the new world, but it doesn't seem they had much gusto in any of "God, Gold, and Glory," when they arrived on the northern shores. I guess they were just exploring.
Nobody (not NASA, not ESA, not the Chinese) is seriously considering a one-way manned mission. Glorified soil sampling is all they are considering.
Blah. After ~40 years of manned spaceflight, people still have it in their heads that such is the perview of governments alone. Such was the case before, but we're nearing a threshold. In the last few years, things have been picking up a LOT in the commercial space development, and they're set to continue their rapid growth. And when we start moving out in space, we're going to move very quickly. It'll be rough, and it'll be dangerous, but unlike curiosity driven exploration projects from government agencies, we have some real motive to go (Gold and Glory). And if you don't understand what I'm talking about, it's okay. Most people stayed in Europe too.
The specific heat of air is rather high. It'll store the/heat/ (heh, my bad) for a while, there, high speed. Go back to thermodynamics and try again. It'll stay warm. That's what insulation does.
And, umm, yes, I already pointed out that the cracks allow for an equilibrium state with regards to pressure. Hot particles escape through the crack, but there are still hot particles left in the house, and we now have a pressure equilibrium between outside and inside, while the temperature remains high. There is no net gas flow, at this point of temperature inequlibrium, as the pressure's are the same. Over time, diffusion back and forth through the crack will even out the temperature, and interaction at that boundary will cause conductive transfer. But the fact that the air in the house is holding the heat is a very important point that you're seeming to miss.
The specific heat of air is rather high. It'll store the air for a while, there, high speed. Go back to thermodynamics and try again. It'll stay warm. That's what insulation does.
Cover, squad-based movement tactics, proper marksmanship including body position, breath control, trigger squeeze, and proper aim all make an enormous difference on the battlefield. Take your spray-and-pray approach up against a US Army Infantry Squad in a paintball tournament, and you'll see some difference. Do it with accurate weaponry (which paintball, unfortunately, is not) and you'll get your hind end completely handed to you. FPS is fun and all, and it definitely can help you work on battlefield awareness, proper aim, and team-based tactics, but don't think it's just spraying projectiles.
Me, I just work in a special ops unit doing intelligence. Not quite so 'glamorous,' but everybody in the Army is capable of some infantry stuff.
"You could take a two or three bedroom house, insulate it with aerogel, and you could heat the house with a candle."
Well, sure, anybody can point out the obvious "if you have a crack in your house" stuff, but the idea is still valid. So, don't go pulling out pivnert from 10th grade chemistry and using that as your basis for second-guessing an illustrative statement.
However, your house would STILL get too hot, even using PV = nRT. V here is constant. R, of course, is the Rieberg constant, the value of which I don't know off-hand. As long as no air leaks out, then as T goes up, P goes up accordingly. But T is on an absolute scale. Kelvins, here. 293.15 K is room temperature, 20 degrees C, and if you heat that up to 30 degrees C, 303.15 K is, in terms of proportionality, not too much of an increase, but hotter than is comfortable, i.e. too hot. Then particles, due to the pressure differential between outside and inside, want to leak out that crack. And what's happened? THE TEMPERATURE HASN'T DECREASED. n in PV = nRT has gone down in order to bring P down to atmospheric pressure outside. Oh, dear, T is higher, and nothing's leaking out! This, silly head, is why it's possible to heat a house in the first place. By your reasoning, a house could never be a different temperature than outside! Which, thank goodness, isn't the case.
And then, of course, "as a matter of fact," the air is exactly what keeps it hot, and any other thermally insulative materials, i.e. fiberglass or aerogel. When you heat up a house, you run air into a furnace, heat it up, and then pump it through the rest of the house. A candle would heat up the air immediately above it (rising products from chemical reaction) and that air diffuses throughout the house, heating it up. Just like your furnace. True, there's radiative heating from the candle as well, but compare the difference in heat when you stick your finger an inch above a candle vs. an inch to the side of it. Radiative heating is universally dispersive. Convective goes straight up. BIG difference between the two there. Oh, well, it looks like a candle COULD heat up the house insulated with aerogel.
A bet is still on. Now that computationally it's been demonstrated that it's possible to have naked singularities, Hawking thinks we won't ever actually find one. Heh, I work on the nuclear side, but having an astro guy come and give colloquium now and again is nice.
Heh. Neverminding that the physics archive isn't peer reviewed and me the junior in a physics program could post my papers on artificial gravity and flying saucers there, one has to still step back and say 1) Other people have already pointed out enough that there are papers by the authors all over the place, and 2) Los Alamos National Laboratory tends to be a step above your average community college: people who are there get there because they tend to know what they're doing. When one of them suggests a completely different theory, maybe a brainless shmuck who never got past Newtonian Mechanics shouldn't be pulling out crap comparing them to creation-scientists or posts about the Bermuda triangle.
Drugs are bad.
Is there something about a private network for research institutions separated from the internet that would somehow allow you to receive 10x the amount of spam and cracking attempts?
Dude, drugs are bad.
I assume by "pure energy" beings you're referring to the heat-death of the universe.
Pure kinetic energy? Pure potential energy? Pure mass energy? Oh, wait, we already are mostly that, with a bit of kinetic (thermal) energy tacked on. Can we please, PLEASE, knock this stupid idea out of the sci-fi circles? Thank you.
With your math, 0 is seven numbers away from 6, given by the series 0,1,2,3,4,5,6. No, the story is 5 years and 4 months and six days old. Of course, if you wanted to round up... =)
Are you sure it was this week?
Positive?
Could it have maybe been a couple of weeks ago? Oh, wait, make that 7 friggin' years ago!
*sigh*
Hey, Slashdot, it's been a rough week for ya, hasn't it?
What defines mentally ill? If I'm diagnosed with a severe depression and have medication but am conducting research in a university lab and serve in the National Guard and am productive and responsible, am I still a third-class citizen? Or do I get upgraded to second-class?
Well, it varies based on temperature and pressure, of course, but when you're talking about an article written for most everybody who isn't a scientist to read, 'sonic' is referring to the normal speed of sound we're accustomed to, approximately 343 m/s. There is no implication here that there is sound propagating effectively through the heliopause. Nobody's trying to pull the wool over your eyes. 'Sonic' is just a common reference point when talking about velocities.
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Yeah. I'm glad I could enlighten you concerning the coldness of antarctica. If there's anything else obviously facetious I can do to help you learn more about the world around you, just let me know.
This makes me happy. I knew there were still paleontological digs and studies going on around the world, but I didn't know any were in Antarctica. (For those of you who don't know, it's COLD there.) It doesn't sound like these new discoveries have anything anatomical to make them significant otherwise, but the fact that paleotology found a useful place to do research in Antarctica bares out a good reminder that there's still a lot of stuff we don't know, even in fields unrelated to particle physics, nanoengineering, genetics, astrophysics, mathematics, or any other fields that see a lot of coverage in science.slashdot.org.
The russians have had some pretty impressive successes in their space program, but the past half-decade was spent with them falling behind in their ISS obligations and being unable to pay for their part of the commitment. Most of the trips to the space station to switch out crews, etc., have been financed by NASA, not Russia, even though they've been on Soyuz craft.
This announcement should be taken with a HUGE grain of salt. The Russians have spent a lot of time lately claiming "anything you can do I can do better" with regards to American plans for space, but until they have flight tests of a six man module, we can probably give it the same level of credence we should have given the X-33, OSP, and several other defunct NASA programs.
I wouldn't cross your fingers about NASA's future plans for exploration either.
A human could do in a day what each rover is taking three months to do.
The specific heat of air is rather high. It'll store the /heat/ (heh, my bad) for a while, there, high speed. Go back to thermodynamics and try again. It'll stay warm. That's what insulation does.
And, umm, yes, I already pointed out that the cracks allow for an equilibrium state with regards to pressure. Hot particles escape through the crack, but there are still hot particles left in the house, and we now have a pressure equilibrium between outside and inside, while the temperature remains high. There is no net gas flow, at this point of temperature inequlibrium, as the pressure's are the same. Over time, diffusion back and forth through the crack will even out the temperature, and interaction at that boundary will cause conductive transfer. But the fact that the air in the house is holding the heat is a very important point that you're seeming to miss.
The specific heat of air is rather high. It'll store the air for a while, there, high speed. Go back to thermodynamics and try again. It'll stay warm. That's what insulation does.
Cover, squad-based movement tactics, proper marksmanship including body position, breath control, trigger squeeze, and proper aim all make an enormous difference on the battlefield. Take your spray-and-pray approach up against a US Army Infantry Squad in a paintball tournament, and you'll see some difference. Do it with accurate weaponry (which paintball, unfortunately, is not) and you'll get your hind end completely handed to you. FPS is fun and all, and it definitely can help you work on battlefield awareness, proper aim, and team-based tactics, but don't think it's just spraying projectiles.
Me, I just work in a special ops unit doing intelligence. Not quite so 'glamorous,' but everybody in the Army is capable of some infantry stuff.
"You could take a two or three bedroom house, insulate it with aerogel, and you could heat the house with a candle."
Well, sure, anybody can point out the obvious "if you have a crack in your house" stuff, but the idea is still valid. So, don't go pulling out pivnert from 10th grade chemistry and using that as your basis for second-guessing an illustrative statement.
However, your house would STILL get too hot, even using PV = nRT. V here is constant. R, of course, is the Rieberg constant, the value of which I don't know off-hand. As long as no air leaks out, then as T goes up, P goes up accordingly. But T is on an absolute scale. Kelvins, here. 293.15 K is room temperature, 20 degrees C, and if you heat that up to 30 degrees C, 303.15 K is, in terms of proportionality, not too much of an increase, but hotter than is comfortable, i.e. too hot. Then particles, due to the pressure differential between outside and inside, want to leak out that crack. And what's happened? THE TEMPERATURE HASN'T DECREASED. n in PV = nRT has gone down in order to bring P down to atmospheric pressure outside. Oh, dear, T is higher, and nothing's leaking out! This, silly head, is why it's possible to heat a house in the first place. By your reasoning, a house could never be a different temperature than outside! Which, thank goodness, isn't the case.
And then, of course, "as a matter of fact," the air is exactly what keeps it hot, and any other thermally insulative materials, i.e. fiberglass or aerogel. When you heat up a house, you run air into a furnace, heat it up, and then pump it through the rest of the house. A candle would heat up the air immediately above it (rising products from chemical reaction) and that air diffuses throughout the house, heating it up. Just like your furnace. True, there's radiative heating from the candle as well, but compare the difference in heat when you stick your finger an inch above a candle vs. an inch to the side of it. Radiative heating is universally dispersive. Convective goes straight up. BIG difference between the two there. Oh, well, it looks like a candle COULD heat up the house insulated with aerogel.
Yes, I am a physicist.
A bet is still on. Now that computationally it's been demonstrated that it's possible to have naked singularities, Hawking thinks we won't ever actually find one. Heh, I work on the nuclear side, but having an astro guy come and give colloquium now and again is nice.
Great. This guy reads a book by Hawking, and suddenly he's an expert.
Heh. Neverminding that the physics archive isn't peer reviewed and me the junior in a physics program could post my papers on artificial gravity and flying saucers there, one has to still step back and say 1) Other people have already pointed out enough that there are papers by the authors all over the place, and 2) Los Alamos National Laboratory tends to be a step above your average community college: people who are there get there because they tend to know what they're doing. When one of them suggests a completely different theory, maybe a brainless shmuck who never got past Newtonian Mechanics shouldn't be pulling out crap comparing them to creation-scientists or posts about the Bermuda triangle. Drugs are bad.
Is there something about a private network for research institutions separated from the internet that would somehow allow you to receive 10x the amount of spam and cracking attempts? Dude, drugs are bad.
I assume by "pure energy" beings you're referring to the heat-death of the universe. Pure kinetic energy? Pure potential energy? Pure mass energy? Oh, wait, we already are mostly that, with a bit of kinetic (thermal) energy tacked on. Can we please, PLEASE, knock this stupid idea out of the sci-fi circles? Thank you.
13 - 8 = 5
2003 - 1998 = 5
With your math, 0 is seven numbers away from 6, given by the series 0,1,2,3,4,5,6. No, the story is 5 years and 4 months and six days old. Of course, if you wanted to round up... =)
It's good to know I'm not the only retard who said 1998 was seven years ago. And it's 2003.
Oh, yeah. I guess whatever's got Cliff is contagious.
Are you sure it was this week? Positive? Could it have maybe been a couple of weeks ago? Oh, wait, make that 7 friggin' years ago! *sigh* Hey, Slashdot, it's been a rough week for ya, hasn't it?
What defines mentally ill? If I'm diagnosed with a severe depression and have medication but am conducting research in a university lab and serve in the National Guard and am productive and responsible, am I still a third-class citizen? Or do I get upgraded to second-class?
RTFA The probe has left the solar system. That's the whole point.
Well, it varies based on temperature and pressure, of course, but when you're talking about an article written for most everybody who isn't a scientist to read, 'sonic' is referring to the normal speed of sound we're accustomed to, approximately 343 m/s. There is no implication here that there is sound propagating effectively through the heliopause. Nobody's trying to pull the wool over your eyes. 'Sonic' is just a common reference point when talking about velocities.
YIAAP (Yes, I Am A Physicist)