All travels are in spacetime, not merely one or the other. With "normal"/forward mode - basic things like inertia, conservation of energy or causality keep everything in check.
It does hint that tricks meddling with FTL and time travel would step on the toes of some very fundamental stuff. Perhaps also at: however different the value of c would be, it still wouldn't change things much proportionally when assuming a universe close to ours.
http://m.facebook.com/...not saying the mobile browsers can't have the security, just that "hope" isn't required to render Facebook without js. And apparently such access is quite popular - there were some news from FB itself about explosive growth; also according to stats of Opera Mini (the #1 mobile web browser worldwide by site hits, despite many of its users being evidently rather frugal with numbers of sites visited / data transferred), Facebook is quite often near the top of popularity.
Jupiter appears to be near the breakaway point. Saturn, despite being much further, might receive more energy from the Sun than it radiates. Earth receives four orders of magnitude more than it generates internally.
It forms a disk just due to conservation of angular momentum and how the matter on initially, what is in essence, high inclination orbit around the black hole (the parts starting "far" from the equator) can't really keep that "orbit". Nucleosynthesis doesn't appear to be major way of energy release around black holes. Singularity doesn't need to be very large to get things quickly going where there's a lot of mass available; just large enough - and when that is the case, there doesn't appear to be a mechanism which would maintain equilibrium (you miss again how the proposed "shell" wouldn't be supported on anything, would want to escape in all directions, also towards the event horizon; and why shell/disk would be different, anyway?) But I didn't say all of the planet would simply fall in - yes, there should be also an "explosion", that's what it will make it quite bright on the scale of a galaxy; certainly nothing like in the recent Star Trek...
I'm not even so sure about overtaking; even our extrasolar spacecraft from the 70's could have been noticeably faster (using instead of medium launcher something like, say, Saturn V with NERVA upper stage and, on the probe, nuclear reactor with ion thruster) - it just didn't make sense for the primary mission (would limit flyby times), it would be quite a bit more expensive.
It's not just the tech that keeps us firmly on Earth now. And in the future - despite our wishes, it might very well be that the best practical thing allowed by this Universe is some variant of nuclear propulsion (or for small unmanned - starwisps for example; still at best around an order of magnitude less than c, anyway), all our data so far certainly strongly suggests it. And technologically, if we really wanted to, we can have capabilities for interstellar probe decently soon.
But as you say, it would require basically whole GDP of the planet for the next few generations.
(BTW you assume too big of a final hop in the "cache / gradual" approach, IMHO - there are many more outposts and local resource sources possible along the way, in the Oort cloud; estimations put their number maybe even at one trillion; I guess that's how our colonization will in the end look like, very gradual over the course of millennia - and with some groups eventually hitching a ride in an Oort cloud of another close-passing star. Maybe some embryo colonization ships, at most - one every few decades shouldn't put too much of a strain on the system)
Not really fusion, mostly "friction" of matter in the accretion disk. Wouldn't be very long-lived. Wouldn't be dim; in fact, it would most likely hugely outshine the central star of the system.
(and you know, we have many decent examples of what happens when a black hole appears inside a place with a lot of matter; the "fusing gas shell" in turn can't be really supported on anything)
Yes, Io is simply heated far too much than what we would consider "nice" and is too small to retain any appreciable atmosphere (it does tend to stabilize temperatures on Earth, works wonders on Venus which has a day on the order of one year). Doesn't change how it's a good case scenario for extending habitable zones of perhaps millions solar systems just in our galaxy.
/me looks around...does the Universe seem greatly influenced, by some "civilization" from the "future" that developed FTL, via processes not following the expected natural ones?
Nope; quite likely no FTL possible in this Universe (unless one wishes to subscribe to one quote of sir Arthur C. Clarke, "it may be that our role on this planet is not to worship god, but to create him")
Plus any differences during "long" orbits of practically any moon getting appreciable tidal heating are insignificant compared to the basic facts of heat retention, slow rates of convection, etc.
...and yet we sort of have just such a thing in our system - a moon hot to the point of being, by far, the most volcanically active body in the system.
All this ignoring how many extrasolar hot Jupiters and hot Neptunes we're discovering - you people really never heard about them, about planetary migration in general?
At least some of us might get a quite decent image (puns, et al) - many nearby systems should be close enough for some good interferometer with a way of canceling-out the starshine; even JWST might give something not bad, for nearest systems, especially with some starshade added, flying in front of it in unison.
But yeah, people raised on too much on scifi travels will be disappointed either way...
Now, I'm sure this thread will get many suggestions how to improve your "information management", many might prove helpful in finding and refining you own ways - but ultimately, it all fails at some point; there's just too much of it all.
Learning to let things go will be crucial. I can't know what might work for you - maybe always listening (to the point of a habit), without exceptions or excuses, to that nagging voice telling you something is a waste of time? (say goodbye to those many certainly interesting things you won't ever finish reading) Maybe regular breaks (force yourself to them, an alarm clock on the other side of an apartment for example), thinking idly about the singular tasks at hand? Maybe separating stuff to work PC/area and thrash PC/area? Or maybe something completely different.
In the end, while technical solutions are helpful - your main effort will be at not circumventing them, not wasting any gains.
I know that; been using it until quite recently. How I think, now, that the AJAX one is better doesn't dispel its abuses (and you know, some parts of the site simply do not work without js anymore)
Now, granted, some sites are (ab)using AJAX and whatnot for purposes ranging from nefarious to just annoying... it's generally kept in balance by the ease with which people can transition to a competing website if yours is too annoying
Seamonkey definitely feels snappier than FF every time I try it, and able to gracefully withstand much heavier browsing (why? Less reckless code in UI / more cautious with changes there / doesn't have to accommodate extensions? UI which, running also via js, isn't the most speedy type by design...); a bit funny, considering the stated goals at the start of Phoenix effort.
Slashdot Mirror
Of course, stories with space travel above c really should include also time travel...
Simpler: it most likely isn't possible.
They certainly appear to be linked; but not exactly in the way which would work for BTTF...
All travels are in spacetime, not merely one or the other. With "normal"/forward mode - basic things like inertia, conservation of energy or causality keep everything in check.
They break down completely with tricks like in BTTF. It might be not a coincidence that the inertia appears to act like the sum of gravitational influence exerted on a given body by the rest of the universe - but there's one problem with that. Gravitation works at the speed of light. For it to be responsible for inertia, the influence would have to be instantaneous - essentially going back in time to the body in question.
It does hint that tricks meddling with FTL and time travel would step on the toes of some very fundamental stuff. Perhaps also at: however different the value of c would be, it still wouldn't change things much proportionally when assuming a universe close to ours.
BTTF is just a fun fairytale, can we get over it?
http://m.facebook.com/ ...not saying the mobile browsers can't have the security, just that "hope" isn't required to render Facebook without js.
And apparently such access is quite popular - there were some news from FB itself about explosive growth; also according to stats of Opera Mini (the #1 mobile web browser worldwide by site hits, despite many of its users being evidently rather frugal with numbers of sites visited / data transferred), Facebook is quite often near the top of popularity.
Or we can just look at the version numbers in "about"...
XP 64bit & 2003 = 5.2 ...4.0
XP = 5.1
2000 = 5.0
NT 4.0 =
Not exactly moot, if it still means no FTL for us anyway.
Jupiter appears to be near the breakaway point. Saturn, despite being much further, might receive more energy from the Sun than it radiates. Earth receives four orders of magnitude more than it generates internally.
It forms a disk just due to conservation of angular momentum and how the matter on initially, what is in essence, high inclination orbit around the black hole (the parts starting "far" from the equator) can't really keep that "orbit". Nucleosynthesis doesn't appear to be major way of energy release around black holes. Singularity doesn't need to be very large to get things quickly going where there's a lot of mass available; just large enough - and when that is the case, there doesn't appear to be a mechanism which would maintain equilibrium (you miss again how the proposed "shell" wouldn't be supported on anything, would want to escape in all directions, also towards the event horizon; and why shell/disk would be different, anyway?)
But I didn't say all of the planet would simply fall in - yes, there should be also an "explosion", that's what it will make it quite bright on the scale of a galaxy; certainly nothing like in the recent Star Trek...
(to register and log in isn't much of a problem?)
I'm not even so sure about overtaking; even our extrasolar spacecraft from the 70's could have been noticeably faster (using instead of medium launcher something like, say, Saturn V with NERVA upper stage and, on the probe, nuclear reactor with ion thruster) - it just didn't make sense for the primary mission (would limit flyby times), it would be quite a bit more expensive.
It's not just the tech that keeps us firmly on Earth now. And in the future - despite our wishes, it might very well be that the best practical thing allowed by this Universe is some variant of nuclear propulsion (or for small unmanned - starwisps for example; still at best around an order of magnitude less than c, anyway), all our data so far certainly strongly suggests it. And technologically, if we really wanted to, we can have capabilities for interstellar probe decently soon.
But as you say, it would require basically whole GDP of the planet for the next few generations.
(BTW you assume too big of a final hop in the "cache / gradual" approach, IMHO - there are many more outposts and local resource sources possible along the way, in the Oort cloud; estimations put their number maybe even at one trillion; I guess that's how our colonization will in the end look like, very gradual over the course of millennia - and with some groups eventually hitching a ride in an Oort cloud of another close-passing star. Maybe some embryo colonization ships, at most - one every few decades shouldn't put too much of a strain on the system)
Not really fusion, mostly "friction" of matter in the accretion disk. Wouldn't be very long-lived. Wouldn't be dim; in fact, it would most likely hugely outshine the central star of the system.
(and you know, we have many decent examples of what happens when a black hole appears inside a place with a lot of matter; the "fusing gas shell" in turn can't be really supported on anything)
Yes, Io is simply heated far too much than what we would consider "nice" and is too small to retain any appreciable atmosphere (it does tend to stabilize temperatures on Earth, works wonders on Venus which has a day on the order of one year). Doesn't change how it's a good case scenario for extending habitable zones of perhaps millions solar systems just in our galaxy.
/me looks around...does the Universe seem greatly influenced, by some "civilization" from the "future" that developed FTL, via processes not following the expected natural ones?
Nope; quite likely no FTL possible in this Universe (unless one wishes to subscribe to one quote of sir Arthur C. Clarke, "it may be that our role on this planet is not to worship god, but to create him")
Conditions on Io seem fairly stable...
Plus any differences during "long" orbits of practically any moon getting appreciable tidal heating are insignificant compared to the basic facts of heat retention, slow rates of convection, etc.
Of course, you could heat the environment of an already-existing gas giant, but how would that happen?
Yeah, how in the universe this could ever be possible?
...and yet we sort of have just such a thing in our system - a moon hot to the point of being, by far, the most volcanically active body in the system.
All this ignoring how many extrasolar hot Jupiters and hot Neptunes we're discovering - you people really never heard about them, about planetary migration in general?
At least some of us might get a quite decent image (puns, et al) - many nearby systems should be close enough for some good interferometer with a way of canceling-out the starshine; even JWST might give something not bad, for nearest systems, especially with some starshade added, flying in front of it in unison.
But yeah, people raised on too much on scifi travels will be disappointed either way...
Even Jupiter emits more light in some frequencies than it receives from the sun.
More generally, it radiates more energy than it receives from the Sun (with a different mechanism than in a star of course)
Now, I'm sure this thread will get many suggestions how to improve your "information management", many might prove helpful in finding and refining you own ways - but ultimately, it all fails at some point; there's just too much of it all.
Learning to let things go will be crucial. I can't know what might work for you - maybe always listening (to the point of a habit), without exceptions or excuses, to that nagging voice telling you something is a waste of time? (say goodbye to those many certainly interesting things you won't ever finish reading) Maybe regular breaks (force yourself to them, an alarm clock on the other side of an apartment for example), thinking idly about the singular tasks at hand? Maybe separating stuff to work PC/area and thrash PC/area? Or maybe something completely different.
In the end, while technical solutions are helpful - your main effort will be at not circumventing them, not wasting any gains.
I know that; been using it until quite recently. How I think, now, that the AJAX one is better doesn't dispel its abuses (and you know, some parts of the site simply do not work without js anymore)
Now, granted, some sites are (ab)using AJAX and whatnot for purposes ranging from nefarious to just annoying ... it's generally kept in balance by the ease with which people can transition to a competing website if yours is too annoying
So what keeps you here?
Seamonkey definitely feels snappier than FF every time I try it, and able to gracefully withstand much heavier browsing (why? Less reckless code in UI / more cautious with changes there / doesn't have to accommodate extensions? UI which, running also via js, isn't the most speedy type by design...); a bit funny, considering the stated goals at the start of Phoenix effort.
Think about that statement a bit more and why it might be wrong... (given special consideration to the things know as "defects", etc.)
WP, really?
Oh, it might be controlling some piece of equipment...