So, rather then take control of a an aircraft by sneaking weapons on board, fighting your way through the passengers (who will not sit idly by anymore) and breaking into a locked cabin, and finally giving up their own lives, They'll only have to hack into the system to redirect the plane into a building. And not just any plane, all of the planes.
Actualy 'true' radiometers have been built, but you have to use a pure vaccum, and cover the materal in a glass coating to prevent offgassing. It does work. see here
Remember Nintendo vs. Namco? Nintendo sued Namco for putting their copyrighted data sequence into their games so that they would work in the NES. Nintendo won the lawsuit, and this was years before the DMCA came out.
That wouldn't be any diffrent then the heat generated by nuclear energy or burning oil or anything else. In fact, it would cause less heatup then burning oil and other carbon based fuels, which cause greenhouse gasses, trapping more light in addition to creating heat energy.
If the comets were hot enough not to be heated by the radiation, or were 100% reflective, the tail wouldn't exist.
Even if that were true, which it's not, all we would need to do would be to make the surface of the sail not 100% reflective and cold.
Hot air will have lower density in a closed system, so while the molicules hit harder, there are less of them. The motion is caused by the way air moves around the edges.
Light reflected off a moving surface is redshifted, accelerating or not. As long as something is bounced back, there should be some energy returned. And yeah, the energy will be less
The crucial bit is, Carnot's argument holds for a heat engine, a device that executes a cycle and returns to its original state. The solar sail is not returning to its original state.
I think for human transportaion, this might cause some problems:P
(but yeah I agree, any system can continue to operate while it gets new usable energy (like one-directional kenetic energy of the photons).
This is begining to sound more and more like the "Rockets will never be able to go to the moon, since there is no air to react against" thing:P
Well, when you bounce light off a mirror when that mirror is moving relative to the direction of the light, then the frequency of the light changes as well. It's called redshifting (as you probably know). If a mirror is moving away from you, it's frequency is diminished. Less frequency means less energy, so each bounce produces less energy then the last.
Personaly, I think the thing would accelerate 'forever' but that acceleration would have a limit of zero as t->infinity, and the KE would have a limit of the energy of the bomb, assuming that all the energy was reflected by the mirrors. (of course, you do have gravity pulling the mirrors back together)
Well, you could also just set a solar sail in motion and have it go off into space. The system you're talking about might just accelerate 'forever' with the limit of the kenetic energy being equal to the energy imparted by the bomb. In general a 'perpetual motion machine' runs in a cycle and has some drag. There are lots of cycles in space that run forever anyway, like the earth's orbit around the sun, polar stars, etc.
But I thought the solar sail worked by capturing the kinetic energy of ions, alpha particles, and other particles ejected by the sun, not the incoherent light. Then again, I doubt I know more about then someone who works for the "Center for radiophysics":P
I think most of the slowness comes from lazynes. Designers use DBs for everything, even pages that never change. I honestly belive a lot of web apps out there that use huge-ass systems could easily be run on a normal PC with some good optimization and caching routines.
And, it seems like the web server is withstanding the Slashdot effect! I remember there was actualy a C64 based web server that was actualy able to hold up based on some pretty impressive TCP hacks that made the connections 'stateless' (by embedding state in the TCP sequence number, IIRC)
That said, I doubt a 14 mhz chip would really have that much of a problem dealing with hits. I think most of the systems that 'go down' when hit by a hit torrent do so because A) They run out of bandwidth, get capped, etc. or B) They are using super-bloated web app code when they really don't need to. You often see things like "MySQL errors" and the like from too many user connections. I think a lot of web developers don't really bother to code for efficiency at all. I mean seriously, the work you need to do to serve a mostly static page is really tiny. An intelligent caching routine should solve most of the problems, but most web-apps it seems get all data out of the DB every run, possibly doing multiple queries. Keep in mind a 386 running Apache can saturate a t1 line. That would have a clock speed of about the same thing, I think the fastest 386 was about 25 mhz. Of course, this is a 32 bit chip, not 8:)
The way autopr0n works, I have a class system that holds all the data, and gets updated independently of the database whenever new data is entered. I hardly ever need to do a query to get new data out of the system. Unfortunately, this means that it's using code I wrote myself, which is just buggy as hell : P. Oh well. It runs 'well enough':P
"[snip a paragraph of text] Are you sure? This is a great program! If you're certain that you don't want our software, click "Yes" to confirm that you don't want it installed. Click "No" if you've changed your mind!". I almost clicked "No" the second time; it was only after reading the (very!) fine print that I realized what I would've been agreeing to.
Well, it wouldn't have mattered. You eventualy would have gotten one of the Microsoft ActiveX install diologs. They look like this. If unless you click yes on one of those, it won't install.
Having more then a 'yes' button stopping you would be a good idea.
try visiting autopr0n with NS4. You get no design whatsoever, just text. If you want the web to look nice, use a browser that doesn't suck (or in other words, any browser other then NS4. A browser without CSS will simply display a normal site, while the CSS enabled browser will render the page nicely. NS4 will just fuck everything up)
It may not be the best solution, but what about something like this: a 'teach gestures' option; when checked, every time the user did something another way that could be more efficiently done with a gesture, this would display a popup with a diagram of the relevant technique.
It was called 'clipy' and people hated it. (I actualy found some usefull info from that little bastard, that I could 'auto solve' for certan cells in a spreadsheet)
You'd have this little tree-graph of all the site's you been to. If you whent back and clicked a link, you'd go down one in the tree (this would be a little grapic near the forward-back buttons). Going back and forth would be as fast as switching windows (ie, cashed in memory. If I want to reload, I'll reload, damnit). These days, if I want to visit more then one linked page, I have to open a new window. With this sort of a setup would make things much easier.
Anyway, now that i've said it, I guess I've got a year or so to patent. Anyone want to loan me $750?
That dosn't make any sense at all, adware/spyware run totaly seperate of the browser. Sure, they can be installed by ActiveX, but only if you're stupid enough to click 'yes' on those random installs.
Look idiot. How easy to you think it is to convince everyone to stop paying for stuff they get in spam. It's not even possible to get everyone to stop murdering people and molesting children. (I'm not saying that buying something from a spam is as bad as that, of course)
But seriously, these spammers only need to get.001% in order to make money.
Slashdot Mirror
An EMP would disable all electronics, and radios, transponders, etc, but the hydraulic controls for the rudder/etc would still function.
So, rather then take control of a an aircraft by sneaking weapons on board, fighting your way through the passengers (who will not sit idly by anymore) and breaking into a locked cabin, and finally giving up their own lives, They'll only have to hack into the system to redirect the plane into a building. And not just any plane, all of the planes.
Oh wait, it's 'hack proof'. Never mind then.
Actualy 'true' radiometers have been built, but you have to use a pure vaccum, and cover the materal in a glass coating to prevent offgassing. It does work. see here
Remember Nintendo vs. Namco? Nintendo sued Namco for putting their copyrighted data sequence into their games so that they would work in the NES. Nintendo won the lawsuit, and this was years before the DMCA came out.
That wouldn't be any diffrent then the heat generated by nuclear energy or burning oil or anything else. In fact, it would cause less heatup then burning oil and other carbon based fuels, which cause greenhouse gasses, trapping more light in addition to creating heat energy.
Actualy, in a perfict vaccume they spin the other (correct) way, assuming that the non-black side is a mirror.
If the comets were hot enough not to be heated by the radiation, or were 100% reflective, the tail wouldn't exist. Even if that were true, which it's not, all we would need to do would be to make the surface of the sail not 100% reflective and cold.
Hot air will have lower density in a closed system, so while the molicules hit harder, there are less of them. The motion is caused by the way air moves around the edges.
Since the mirror will move away from the sun, the light will be lower in frequency on the way back, and thus the photons will have lower energy :)
Light reflected off a moving surface is redshifted, accelerating or not. As long as something is bounced back, there should be some energy returned. And yeah, the energy will be less
The crucial bit is, Carnot's argument holds for a heat engine, a device that executes a cycle and returns to its original state. The solar sail is not returning to its original state.
:P
:P
I think for human transportaion, this might cause some problems
(but yeah I agree, any system can continue to operate while it gets new usable energy (like one-directional kenetic energy of the photons).
This is begining to sound more and more like the "Rockets will never be able to go to the moon, since there is no air to react against" thing
They are vaccum tubes. No air.
Well, when you bounce light off a mirror when that mirror is moving relative to the direction of the light, then the frequency of the light changes as well. It's called redshifting (as you probably know). If a mirror is moving away from you, it's frequency is diminished. Less frequency means less energy, so each bounce produces less energy then the last.
Personaly, I think the thing would accelerate 'forever' but that acceleration would have a limit of zero as t->infinity, and the KE would have a limit of the energy of the bomb, assuming that all the energy was reflected by the mirrors. (of course, you do have gravity pulling the mirrors back together)
Well, you could also just set a solar sail in motion and have it go off into space. The system you're talking about might just accelerate 'forever' with the limit of the kenetic energy being equal to the energy imparted by the bomb. In general a 'perpetual motion machine' runs in a cycle and has some drag. There are lots of cycles in space that run forever anyway, like the earth's orbit around the sun, polar stars, etc.
But I thought the solar sail worked by capturing the kinetic energy of ions, alpha particles, and other particles ejected by the sun, not the incoherent light. Then again, I doubt I know more about then someone who works for the "Center for radiophysics" :P
Well, I don't think you can use these forms of the equasions, since photons have no mass. They do have kenetic energy, IIRC.
I think most of the slowness comes from lazynes. Designers use DBs for everything, even pages that never change. I honestly belive a lot of web apps out there that use huge-ass systems could easily be run on a normal PC with some good optimization and caching routines.
And, it seems like the web server is withstanding the Slashdot effect! I remember there was actualy a C64 based web server that was actualy able to hold up based on some pretty impressive TCP hacks that made the connections 'stateless' (by embedding state in the TCP sequence number, IIRC)
:)
:P
That said, I doubt a 14 mhz chip would really have that much of a problem dealing with hits. I think most of the systems that 'go down' when hit by a hit torrent do so because A) They run out of bandwidth, get capped, etc. or B) They are using super-bloated web app code when they really don't need to. You often see things like "MySQL errors" and the like from too many user connections. I think a lot of web developers don't really bother to code for efficiency at all. I mean seriously, the work you need to do to serve a mostly static page is really tiny. An intelligent caching routine should solve most of the problems, but most web-apps it seems get all data out of the DB every run, possibly doing multiple queries. Keep in mind a 386 running Apache can saturate a t1 line. That would have a clock speed of about the same thing, I think the fastest 386 was about 25 mhz. Of course, this is a 32 bit chip, not 8
The way autopr0n works, I have a class system that holds all the data, and gets updated independently of the database whenever new data is entered. I hardly ever need to do a query to get new data out of the system. Unfortunately, this means that it's using code I wrote myself, which is just buggy as hell : P. Oh well. It runs 'well enough'
"[snip a paragraph of text] Are you sure? This is a great program! If you're certain that you don't want our software, click "Yes" to confirm that you don't want it installed. Click "No" if you've changed your mind!". I almost clicked "No" the second time; it was only after reading the (very!) fine print that I realized what I would've been agreeing to.
Well, it wouldn't have mattered. You eventualy would have gotten one of the Microsoft ActiveX install diologs. They look like this. If unless you click yes on one of those, it won't install.
Having more then a 'yes' button stopping you would be a good idea.
try visiting autopr0n with NS4. You get no design whatsoever, just text. If you want the web to look nice, use a browser that doesn't suck (or in other words, any browser other then NS4. A browser without CSS will simply display a normal site, while the CSS enabled browser will render the page nicely. NS4 will just fuck everything up)
No, not a sensible choice like Red, green, blue and black. oh no. We had black, white, magenta and cyan!
Well you did, anyway. My first PC had true color. Heh.
It may not be the best solution, but what about something like this: a 'teach gestures' option; when checked, every time the user did something another way that could be more efficiently done with a gesture, this would display a popup with a diagram of the relevant technique.
It was called 'clipy' and people hated it. (I actualy found some usefull info from that little bastard, that I could 'auto solve' for certan cells in a spreadsheet)
You'd have this little tree-graph of all the site's you been to. If you whent back and clicked a link, you'd go down one in the tree (this would be a little grapic near the forward-back buttons). Going back and forth would be as fast as switching windows (ie, cashed in memory. If I want to reload, I'll reload, damnit). These days, if I want to visit more then one linked page, I have to open a new window. With this sort of a setup would make things much easier.
Anyway, now that i've said it, I guess I've got a year or so to patent. Anyone want to loan me $750?
That dosn't make any sense at all, adware/spyware run totaly seperate of the browser. Sure, they can be installed by ActiveX, but only if you're stupid enough to click 'yes' on those random installs.
Adware is usualy bundled with shareware anyway
Look idiot. How easy to you think it is to convince everyone to stop paying for stuff they get in spam. It's not even possible to get everyone to stop murdering people and molesting children. (I'm not saying that buying something from a spam is as bad as that, of course)
.001% in order to make money.
But seriously, these spammers only need to get