This means that if you want to cause a hole larger that your launching mechanism then your launching mechanism will have to be able to withstand a larger force than you target, doesn't it?
Not really, because you have no collision on the launching end, whereas, by definition, you have a collision in the other end. A thin shockwave of hot plasma death precedes your hypersonic projectile as it is on its way to vaporize (or vaporise, if you are operating a rail gun of Her Majesty's fleet) the target, and a rather large shockwave of plasma follows, things which you will not be able to notice anyway, as there will be lots of vaporizing near the target. The impactor vaporizes part of the target, which is part of the physics involved. Consider this: small-sized meteorites produce huge craters, not meteoroid-sized holes on the Earth's crust. And typical speeds (and interestingly enough, masses) for meteoroids are of the order of rail gun projectiles.
(to cover one case where I got your question completely wrong): There is LOTS of stress going to the rail gun array, exactly because there is, as you noticed, lots of force involved, but it might not be the stress you think. The projectile needs to be accelerated to many times the speed of sound in under the length of the "barrel" (barrel-equivalent, which is the rail/rails). To accomplish that, a large magnetic field is needed, which means lots of current has to run fast through the projectile and the rails, an large current running through conductors is actually an industrial way of liquifying -and keeping liquid- chunks of metal. Furthermore, much stress may permanently deform the array after firing, rendering the gun useless until repaired.
AFAIK obvious problems are overheating and deformation.
No, you are wrong: the trajectory is in fact closer to a section of an ellipse, because the Earth's pull has a gradient. Ignoring atmosphere, it can be *approximated* by a parabolic section provided the highest altitude reached is relatively low (==gradient is zero). If I was to shoot anything at long range and not miss, I would forego the parabolic approximation as it introduces errors. The parabolic approximation is only half-good for Great War Era artillery aiming. Forget about using it to aim even WW II V2s, and is certainly useless for anything ICBM-like.
Currently the velocity of railguns is roughly equivalent to navel guns.
If 'navel' is a typo for 'naval', is that true? I have heard reports of Mach 7 speeds for railguns, can a chemical gun fire a projectile faster than that?
Eventually this speed should surpass escape velocity which means railguns will eventually be able to tag satellites
Hold your horses: you need escape velocity only if you plan tagging targets on the moon. For most satellites, a fraction of this speed (achieved by today's tech) can easily reach them.
The question in the new era is how to defend against such things so that a battle group is survivable.
A carefully placed e/m pulse could, in principle, seriously eff up the rail array, as it -by definition- is set up for optimal current flow. So I would expect more of those, as I would expect a more rigorous e/m shielding regimen.
Consider what you could do if you gave such a design a nuclear power plant, expanded the size to Nimitz proportions, and replaced the planes entirely with more compact drones.
That might be useful for media purposes and intimidation, but for actual mil applications you should consider the huge energy footprint of such a contraption: a 24/7 surveillance of the ballpark area of where it would be most probable to surface would make it very tricky to deploy: enemy would see a large glow on all bands, easy to target with their own hypersonic projectiles. On the other hand, if there are no souls aboard (though unlikely for a sub) you could not care less.
Some time ago I took a long, hard look on "Skype alternatives". Let me share my finds with all of you:
Skype is Shit. Let me repeat that: Skype is Shit, and this Shit that Skype is mostly became shit after Microsoft messed with it. Allow me to elaborate:
- Call quality auto-degrades, when Skype 'decides' you are not to be prioritized. No other option given to the user to prioritize or adjust it in any way; useful settings to manage call parameters are virtually non-existent;
- Land line connectivity is poor, with low success rates (try it for yourselves: try calling from your regular phone the line you just failed to get a connection, and see how quick and crisp the result is);
- Privacy is a joke, even the links one pastes in Skype's chat interface trigger Microsoft spider bots that show up to check on the link shared. Again, try this for yourself and see what happens. I would not be surprised if the infamous Facebook policy is applied (the one that saves not just what you post, but what you type in the textboxes, even if you hit Backspace);
- The super useful desktop sharing function was made a PREMIUM service. That was the straw that broke the camel's back for me.
- Over the years, and version after version, the ads have become audaciously overwhelming. The current image of Skype's window on your desktop crammed with its glam and glitter ads is plain silly. Grandma (for whom most of us maintain Skype) is having a hard time figuring out where to click to bring up which window that may or may not have the big green button she is looking for.
- Dodgy background processes and connections doing dodgy things. Again, be my guest and check for yourselves. Try your everyday sysadmin tools and see what you get.
>> Skype works on any Windows/MacOS computer, virtually any iOS
I will challenge that: depends what you mean by "works". For example, it does not work on my Mac. And by "does not work" I mean that a not-so-old version will fail to connect. "Have you tried the new version?", you may ask. No thanks, I decided against it after reading the EULA. Again, try it; it was an insightful read for me. Clearly there was lots of effort put into writing it, so why not do them a favour and read it? Note that the juice here is not my predicament and my ideas of what 'this software works' means, but Microsoft's choice to piss on their users and cripple earlier versions in order to extort upgrades.
>> A better comparison would be Google Hangouts
I understand this, but really, it boils down to whether you believe that you are getting a good deal or not from Google (or anyone) for your person. If you go this way, you would be an utter fool if you expect any kind of privacy on your otherwise designated 'private' communications. Google will keep recordings of your sessions at least until a biblical proportion flood or a meteor impact event physically destroys its data centres. Until then, Google (or whoever is in their shoes at the time) will ever-analyze and dissect your data, with current and ever-developing algorithms and resources: that's what Google DOES in its core.
A very simple to set up a convenient videoconf scheme is to use something o p e n s o u r c e (say Jitsi), and use it to handle an o p e n (say XMPP) protocol. Set one up for grandma as well, show her where the green button is, and videochat with her with strong end-to-end encryption, keeping those magick cookie formulae of hers only between her and you. You taught grandma Skype, you can teach grandma this one as well. Grandma knows.
Make sure you at least give your friends and associates a chance to break out of this Skype/Hangout trap that we tech-informed people have totally set up for ourselves, stop using the ".. but everybody uses Skype.. " and ".. but my contacts.. " excuses, and deliver the
Aliens don't know better than to shit where they eat. We could be the only species in the galaxy that's so stupid.
But can you imagine if not? Imagine: an alien civ, similar to this one, but at an earlier stage of development. Ripe to be exploited. Would you then, for one, welcome yourself as their alien overlord?
It also depends on what kind of business you run: judging from Microsoft's products and behavior for the past decades, I would guess that it needs about a dozen software engineers, a bunch of sysadmins, and quite a few tens of thousands of lawyers.
After the election of a new European Parliament in May this year, Jean-Claude Juncker has been nominated to become the new President of the European Commission
Basically, all of EU 's administration that matters is chosen by the running governments of the member-states: all administration is merely an assembly of the guys already in charge. The European Parliament has had very little to say on administrative issues, and this is the first term that the European Parliament's members will presumably have the power to block EU directives (something that remains to be seen how it works out): and this is the only part that they will have in the law-making process --the European Parliament DOES NOT have the power of legislative initiative.
FYI, so you do not get carried away by flashy designations and think that this is an actual parliamentary representative democracy akin to national parliaments: it is not.
M dwarfs are very interesting because they are the most common kind of star, and they have a very high potential of hosting planets able to support DNA-based life as we know it. M dwarfs are also expected to exhibit strong magnetic activity (star spots are magnetic features) as they are highly convective. Star spots appear darker in the optical wavelength, and can easily be mistaken for planets.
There is active research going on that tries to filter out this interference caused by the magnetic effects, and as most public-funded science is unfortunately (and audaciously) paywalled
I can elaborate on why this is theorized to be if you want, but I doubt you really care.
Please do, I am all ears: there are cartels that have been around for almost a century and still show no signs of weakening, so I am quite curious to hear how you came to perceive the cartel situation as such.
Actually, I think the crux of the problem is that you don't understand price theory. Price is not determined by the cost of the inputs. Rather, society determines the price via their actions in purchasing or not purchasing a good
This will certainly backfire not very long from now: basic reasons why youtube is big is because a) was early, and b) is a high-bandwidth streaming service that you can dump (and find) more-or-less what you want. Take this away, or make it complicated, and soon the tech-savvies or the home/small business people will pull out; and the middle class iPad living room seniors surfers will --sooner or later-- follow.
The music industry has a long and sordid history of ripping off the artists...
This.
The music industry got cold sweat from the diversity of available media (vinyl, magnetic tapes, optical disks, whatever) and the easyness of internet sharing and binded the artists with all-encompassing contracts, taking the music out of their hands: you are not allowed to perform your own songs in public without your label sanctioning it (and making millions from your fans by selling them beer) first because, technically, they are not your songs any more.
In return, the label sends its armies of lawyers (along with corrupt government elements) to Hell and beyond to track, terrorize and imprison teenagers who had the audacity to publicly share even a small exrept of the (formerly yours) work, and grand you your 0.00000000001% cut from the process.
I only know the book publishing "established" rules a little bit, and -unexpectedly- they are not too much in favor for the writer either.
A good initiative, especially in the music industry, is to have different classifications: streaming is not vinyl is not concert, and those things need to be handled seperately. Artists need to stop signing those all-encompassing deals and a very good start would be e.g. to use a label to produce an LP, then go to a different label and let them handle your content via streaming on the internet: do NOT give up all rights for your art, because that is what you live from. The labels will resist of course but if enough artists do it, then it is done.
[..] an outlandish system of universal volunteering which barely even works in theory let alone practice?
I understand how you may be convinced that money is the only viable option, and other systems that you are conditioned to believe that 'barely even work in theory' seem to you like naive romantic notions. A world without money? How is that even possible, right? THAT is how bad the situation is.
The request was that you be less ridiculous, not as utterly absurdly ridiculous as possible.
Instead of acting like an opinionated smartass, may I suggest that you direct your vigor towards actually investigating a few of those 'outlandish' systems and their underlying principles: ubuntu may be a very good place to start.
Volunteering isn't bartering. Assuming you meant bartering...
It is not bartering in the strict meaning I guess, no. Still I did not mean bartering, I meant exactly what I said.
in exchange for what?
In exchange for nothing! That is what volunteering means!
Picture everybody doing this --or for starters, picture a small town doing this, so you can also get an idea of how it can spread to neighboring towns.
Consider this scenario: a bridge breaks, and needs to be fixed: it needs engineers, masons perhaps, other experts, workers, all that. Those are the the ones that are going to physically fix it. It may also need replacement material, which has a 'cost' (a monetary cost). Last, there is a bunch of politicians and burreaucrats that have to rule on the economics and whatnot and the rest of the 'administrative stuff' regarding the rebuilding of the bridge, which is a crowd that somehow has hypnotized everyone over the years into believing that their work is essential.
In this scenario, the town's experts volunteer time to do their best to fix the bridge. The town's best minds, via an emergent selection from the town itself, are on to it. People who have nothing direct to volunteer, volunteer snacks and entertainment for the people who do the work. Snacks get too many too soon, and the town has an excess that it can perhaps DONATE to a neighboring town (that is going through a similar 'bartering', if you want to call it as such, process) and that neighboring town may have an excess of bridge material (the material that has a 'cost') to DONATE to the town with the faulty bridge.
Where does money fit here? Nowhere. Where do burreaucrats fit here? Nowhere. Bridge gets fixed? Hell yes.
As long as people keep greed in check, this can work surprisingly well.
Also how much of a payload can one missile really carry? Not much, good only for targeted strikes.
For your edification: a hypersonic missile DOES NOT NEED to carry ANY payload. The missile itself IS the payload, which is part of the whole 'hypersonic' point (the other part being to be able to hit globally in under 60 minutes).
Slashdot Mirror
This means that if you want to cause a hole larger that your launching mechanism then your launching mechanism will have to be able to withstand a larger force than you target, doesn't it?
Not really, because you have no collision on the launching end, whereas, by definition, you have a collision in the other end. A thin shockwave of hot plasma death precedes your hypersonic projectile as it is on its way to vaporize (or vaporise, if you are operating a rail gun of Her Majesty's fleet) the target, and a rather large shockwave of plasma follows, things which you will not be able to notice anyway, as there will be lots of vaporizing near the target. The impactor vaporizes part of the target, which is part of the physics involved. Consider this: small-sized meteorites produce huge craters, not meteoroid-sized holes on the Earth's crust. And typical speeds (and interestingly enough, masses) for meteoroids are of the order of rail gun projectiles.
(to cover one case where I got your question completely wrong): There is LOTS of stress going to the rail gun array, exactly because there is, as you noticed, lots of force involved, but it might not be the stress you think. The projectile needs to be accelerated to many times the speed of sound in under the length of the "barrel" (barrel-equivalent, which is the rail/rails). To accomplish that, a large magnetic field is needed, which means lots of current has to run fast through the projectile and the rails, an large current running through conductors is actually an industrial way of liquifying -and keeping liquid- chunks of metal. Furthermore, much stress may permanently deform the array after firing, rendering the gun useless until repaired.
AFAIK obvious problems are overheating and deformation.
Which means the trajectory is parabolic
No, you are wrong: the trajectory is in fact closer to a section of an ellipse, because the Earth's pull has a gradient. Ignoring atmosphere, it can be *approximated* by a parabolic section provided the highest altitude reached is relatively low (==gradient is zero). If I was to shoot anything at long range and not miss, I would forego the parabolic approximation as it introduces errors. The parabolic approximation is only half-good for Great War Era artillery aiming. Forget about using it to aim even WW II V2s, and is certainly useless for anything ICBM-like.
Currently the velocity of railguns is roughly equivalent to navel guns.
If 'navel' is a typo for 'naval', is that true? I have heard reports of Mach 7 speeds for railguns, can a chemical gun fire a projectile faster than that?
Eventually this speed should surpass escape velocity which means railguns will eventually be able to tag satellites
Hold your horses: you need escape velocity only if you plan tagging targets on the moon. For most satellites, a fraction of this speed (achieved by today's tech) can easily reach them.
The question in the new era is how to defend against such things so that a battle group is survivable.
A carefully placed e/m pulse could, in principle, seriously eff up the rail array, as it -by definition- is set up for optimal current flow. So I would expect more of those, as I would expect a more rigorous e/m shielding regimen.
Consider what you could do if you gave such a design a nuclear power plant, expanded the size to Nimitz proportions, and replaced the planes entirely with more compact drones.
That might be useful for media purposes and intimidation, but for actual mil applications you should consider the huge energy footprint of such a contraption: a 24/7 surveillance of the ballpark area of where it would be most probable to surface would make it very tricky to deploy: enemy would see a large glow on all bands, easy to target with their own hypersonic projectiles. On the other hand, if there are no souls aboard (though unlikely for a sub) you could not care less.
Some time ago I took a long, hard look on "Skype alternatives". Let me share my finds with all of you:
Skype is Shit. Let me repeat that: Skype is Shit, and this Shit that Skype is mostly became shit after Microsoft messed with it. Allow me to elaborate:
- Call quality auto-degrades, when Skype 'decides' you are not to be prioritized. No other option given to the user to prioritize or adjust it in any way; useful settings to manage call parameters are virtually non-existent;
- Land line connectivity is poor, with low success rates (try it for yourselves: try calling from your regular phone the line you just failed to get a connection, and see how quick and crisp the result is);
- Privacy is a joke, even the links one pastes in Skype's chat interface trigger Microsoft spider bots that show up to check on the link shared. Again, try this for yourself and see what happens. I would not be surprised if the infamous Facebook policy is applied (the one that saves not just what you post, but what you type in the textboxes, even if you hit Backspace);
- The super useful desktop sharing function was made a PREMIUM service. That was the straw that broke the camel's back for me.
- Over the years, and version after version, the ads have become audaciously overwhelming. The current image of Skype's window on your desktop crammed with its glam and glitter ads is plain silly. Grandma (for whom most of us maintain Skype) is having a hard time figuring out where to click to bring up which window that may or may not have the big green button she is looking for.
- Dodgy background processes and connections doing dodgy things. Again, be my guest and check for yourselves. Try your everyday sysadmin tools and see what you get.
>> Skype works on any Windows/MacOS computer, virtually any iOS
I will challenge that: depends what you mean by "works". For example, it does not work on my Mac. And by "does not work" I mean that a not-so-old version will fail to connect. "Have you tried the new version?", you may ask. No thanks, I decided against it after reading the EULA. Again, try it; it was an insightful read for me. Clearly there was lots of effort put into writing it, so why not do them a favour and read it? Note that the juice here is not my predicament and my ideas of what 'this software works' means, but Microsoft's choice to piss on their users and cripple earlier versions in order to extort upgrades.
>> A better comparison would be Google Hangouts
I understand this, but really, it boils down to whether you believe that you are getting a good deal or not from Google (or anyone) for your person. If you go this way, you would be an utter fool if you expect any kind of privacy on your otherwise designated 'private' communications. Google will keep recordings of your sessions at least until a biblical proportion flood or a meteor impact event physically destroys its data centres. Until then, Google (or whoever is in their shoes at the time) will ever-analyze and dissect your data, with current and ever-developing algorithms and resources: that's what Google DOES in its core.
A very simple to set up a convenient videoconf scheme is to use something o p e n s o u r c e (say Jitsi), and use it to handle an o p e n (say XMPP) protocol. Set one up for grandma as well, show her where the green button is, and videochat with her with strong end-to-end encryption, keeping those magick cookie formulae of hers only between her and you. You taught grandma Skype, you can teach grandma this one as well. Grandma knows.
Make sure you at least give your friends and associates a chance to break out of this Skype/Hangout trap that we tech-informed people have totally set up for ourselves, stop using the ".. but everybody uses Skype .. " and ".. but my contacts .. " excuses, and deliver the
Aliens don't know better than to shit where they eat. We could be the only species in the galaxy that's so stupid.
But can you imagine if not? Imagine: an alien civ, similar to this one, but at an earlier stage of development. Ripe to be exploited. Would you then, for one, welcome yourself as their alien overlord?
It also depends on what kind of business you run: judging from Microsoft's products and behavior for the past decades, I would guess that it needs about a dozen software engineers, a bunch of sysadmins, and quite a few tens of thousands of lawyers.
After the election of a new European Parliament in May this year, Jean-Claude Juncker has been nominated to become the new President of the European Commission
Basically, all of EU 's administration that matters is chosen by the running governments of the member-states: all administration is merely an assembly of the guys already in charge. The European Parliament has had very little to say on administrative issues, and this is the first term that the European Parliament's members will presumably have the power to block EU directives (something that remains to be seen how it works out): and this is the only part that they will have in the law-making process --the European Parliament DOES NOT have the power of legislative initiative.
FYI, so you do not get carried away by flashy designations and think that this is an actual parliamentary representative democracy akin to national parliaments: it is not.
M dwarfs are very interesting because they are the most common kind of star, and they have a very high potential of hosting planets able to support DNA-based life as we know it. M dwarfs are also expected to exhibit strong magnetic activity (star spots are magnetic features) as they are highly convective. Star spots appear darker in the optical wavelength, and can easily be mistaken for planets.
There is active research going on that tries to filter out this interference caused by the magnetic effects, and as most public-funded science is unfortunately (and audaciously) paywalled
I can elaborate on why this is theorized to be if you want, but I doubt you really care.
Please do, I am all ears: there are cartels that have been around for almost a century and still show no signs of weakening, so I am quite curious to hear how you came to perceive the cartel situation as such.
Actually, I think the crux of the problem is that you don't understand price theory. Price is not determined by the cost of the inputs. Rather, society determines the price via their actions in purchasing or not purchasing a good
You cannot be serious.
From a stock holder perspective. it's a very dumb move.
.. unless it works, which will make it a very brilliant move.
This will certainly backfire not very long from now: basic reasons why youtube is big is because a) was early, and b) is a high-bandwidth streaming service that you can dump (and find) more-or-less what you want. Take this away, or make it complicated, and soon the tech-savvies or the home/small business people will pull out; and the middle class iPad living room seniors surfers will --sooner or later-- follow.
The music industry has a long and sordid history of ripping off the artists...
This.
The music industry got cold sweat from the diversity of available media (vinyl, magnetic tapes, optical disks, whatever) and the easyness of internet sharing and binded the artists with all-encompassing contracts, taking the music out of their hands: you are not allowed to perform your own songs in public without your label sanctioning it (and making millions from your fans by selling them beer) first because, technically, they are not your songs any more.
In return, the label sends its armies of lawyers (along with corrupt government elements) to Hell and beyond to track, terrorize and imprison teenagers who had the audacity to publicly share even a small exrept of the (formerly yours) work, and grand you your 0.00000000001% cut from the process.
I only know the book publishing "established" rules a little bit, and -unexpectedly- they are not too much in favor for the writer either.
A good initiative, especially in the music industry, is to have different classifications: streaming is not vinyl is not concert, and those things need to be handled seperately. Artists need to stop signing those all-encompassing deals and a very good start would be e.g. to use a label to produce an LP, then go to a different label and let them handle your content via streaming on the internet: do NOT give up all rights for your art, because that is what you live from. The labels will resist of course but if enough artists do it, then it is done.
[..] an outlandish system of universal volunteering which barely even works in theory let alone practice?
I understand how you may be convinced that money is the only viable option, and other systems that you are conditioned to believe that 'barely even work in theory' seem to you like naive romantic notions. A world without money? How is that even possible, right? THAT is how bad the situation is.
The request was that you be less ridiculous, not as utterly absurdly ridiculous as possible.
Instead of acting like an opinionated smartass, may I suggest that you direct your vigor towards actually investigating a few of those 'outlandish' systems and their underlying principles: ubuntu may be a very good place to start.
Or they quote you Iceland or Cypress
It is called Cyprus
And I believe that 'they' are quoting it only in your head: Iceland and Cyprus handled their economic perils in entirely different ways.
It just forwards all the e-mails to your @facebook.com address to your reigstered address now.
Does it also read them?
Flying pigs are also doable.
That does not mean that they are a good idea, or that they are easy to make.
Ok, I spend 7 hours working on some code. It requires 1000 hours of code. hmm, might take a bit don't you think?
That would depend on how many people from your community volunteer their time to contribute to it.
That is what 'community' means: you do not have to write the code alone.
Volunteering isn't bartering. Assuming you meant bartering...
It is not bartering in the strict meaning I guess, no. Still I did not mean bartering, I meant exactly what I said.
in exchange for what?
In exchange for nothing! That is what volunteering means!
Picture everybody doing this --or for starters, picture a small town doing this, so you can also get an idea of how it can spread to neighboring towns.
Consider this scenario: a bridge breaks, and needs to be fixed: it needs engineers, masons perhaps, other experts, workers, all that. Those are the the ones that are going to physically fix it. It may also need replacement material, which has a 'cost' (a monetary cost). Last, there is a bunch of politicians and burreaucrats that have to rule on the economics and whatnot and the rest of the 'administrative stuff' regarding the rebuilding of the bridge, which is a crowd that somehow has hypnotized everyone over the years into believing that their work is essential.
In this scenario, the town's experts volunteer time to do their best to fix the bridge. The town's best minds, via an emergent selection from the town itself, are on to it. People who have nothing direct to volunteer, volunteer snacks and entertainment for the people who do the work. Snacks get too many too soon, and the town has an excess that it can perhaps DONATE to a neighboring town (that is going through a similar 'bartering', if you want to call it as such, process) and that neighboring town may have an excess of bridge material (the material that has a 'cost') to DONATE to the town with the faulty bridge.
Where does money fit here? Nowhere. Where do burreaucrats fit here? Nowhere. Bridge gets fixed? Hell yes.
As long as people keep greed in check, this can work surprisingly well.
Ok, I spend 7 hours working on some code. It requires 1000 hours of code. hmm, might take a bit don't you think?
Depends on how many others volunteer along.
If many, all of the volunteers' hours can easily add up to more than 1000 hours. Hmm might take less than 'a bit', don't you think?
So, I assume you propose a barter system then?
I do: volunteer 7 hours per week of your expert knowledge (or your strength and vigor, if you have no expert knowledge) to your community.
Be less ridiculous.
You first.
MONEY ALLTOGETHER is not a good idea. Think for yourself, instead of waiting for some authority to think for you.
It breaks the moderating system. Would you like me to Google that for you?
Perhaps also bring you some coffee or tea while you wait?
It really does. It lacks functionality, and its main purpose is to make the "NEW! Fresh! Teen! Revamped!" slashdot to look hip on tablets and phones.
Also how much of a payload can one missile really carry? Not much, good only for targeted strikes.
For your edification: a hypersonic missile DOES NOT NEED to carry ANY payload. The missile itself IS the payload, which is part of the whole 'hypersonic' point (the other part being to be able to hit globally in under 60 minutes).