If you are using IDLE to edit your source, select the entire block that you want to indent/outdent, then type CTRL+] or CTRL+[.
If you are using vi (or vim or gvim), navigate to the end of the block, and type mz (mark location in register "z"). Navigate back to the beginning of the block and type <'z or >'z.
Environmental Impact: In any large program the environmental impact must be
considered. We are examining the impact of a catastrophic failure of the cable and how to mitigate this occurrence. If the cable comes down the worst case is that it will burn up on re-entry. The influx of material is small compared to natural infall or our current space operations. The debris will be most likely be large pieces of cable but may include individual nanotubes. Our initial tests show that carbon nanotubes will not dissolve in lung fluids. The next test is to understand the inhalation rate and possibility of damage once inhaled.
Actually, any positive acceleration no matter how small will do
Actually, any positive velocity, no matter how small, will do. However, the smaller the velocity, the further away from the Earth the vehicle must travel in order to achieve orbit.
A one-time pad is, by definition, used one time. If a person uses it twice or more, then it is no longer a one-time pad.
The only way to break a one-time pad is by breaking the method used to generate the key. For example, using a PRNG is a very poor way to generate a key.
The best way to generate a OTP key is to use a truly random physical event, such as radioactive decay. Place a geiger counter next to radioactive sample that produces several thousand clicks per second. Count the number of clicks each second. If the number of clicks is odd, add a 1 bit to the end of the key. If it's even, add a 0 bit to the end of the key. This can produce a CD-ROM-sized key (650MB) in only 21-22 years. If you would like the key generated in less time, use a larger radioactive sample and reduce the time for each sample, or use multiple samples and counters.
Re:Recycle Bins - don't you just hate them?
on
Undelete In Linux
·
· Score: 1
Of course, the best way to handle it would be to have a key combination for rename, but I guess that's too obvious
This happens to me sometimes when I'm waking up. I am fully consious, but I can't move any part of my body, except for my eyes and eylids. The thing is, if I close my eyes and try to move a part of my body, it feels like I'm actually moving it. I can "get up" and "move" around the room, but if I open my eyes, I'm immediately snapped back to my prone position. Eventually, I lose consiousness and reawaken a few moments later, this time able to move.
I used to think that the whole experience was a weird dream, but now that I have a clock that I can see from my bed, I've noticed that when I wake up for real, the time is only one or two minutes past what I observed when I was paralyzed.
My geuess is that what is happening is that the mechanism that the body uses to prevent sleepwalking (and other movement while sleeping) has not disengaged like it should when I regain conciousness after sleeping. Losing consiousness, then reawakening, "resets" the mechanism.
I never realized the full scope of psychological damage that living in a trailer park had until I started watching Jerry Springer on televeision. Just about every person who would show up who seemed a little bit off/made bad decisions/etc had a history of living in trailer parks. I've learned more about psychology from that show than the 1.5 years of psych classes that I took in high school and I reccomend the show to all slashdotters.
The site requires JavaScript. They just lost a potential customer.
When will these people learn that some of us care about the security of our computers, and deliberately have JavaScript disabled for that reason? If you want to have JavaScript, ActiveX, Flash, and all of that other crap to capture the attention of the unwashed masses, that's fine, but you should provide an alternate method of access for those of us who know better and have better things to do than watch flashy graphics that have nothing whatsoever to so with the product that you are trying to sell.
Similarly, http://www.resellerratings.com/seller2121.html tries to save multiple cookies, one for each image on the page, it seems. One per page should be sufficient. I won't be returning there, either.
The best proof that the pyramids aren't the product of some strange advanced alien or Atlanean technology is that they are in fact pyramids. Genuinely advanced tech can construct buildings of that size using many other designs.
Another reason to build a pyramid shape is that it is likely to last longer. (Most pyramids were built as tombs, and were meant to last forever.) If you look at non-pyramidal above-ground ancient buildings, they have all suffered damage from the elements, mostly to their roofs. After all, stone lasts a long time, but it's not the best material to use for a lintel or beam. In contrast, most of the damage suffered by pyramids was due to vandalism (at least, in Egypt; the meso-American pyramids were also damaged by the encroaching jungle, but still fared better than other above-ground buildings (except maybe the plazas, but those aren't really buildings)).
Are there materials available today that last as long as stone in a desert or desert-like environment? I don't know of any. (Perhaps some forms of concrete.) If I were designing a structure today that I wanted to survive for as long as possible with a minimum of maintenance in a desert-like environment, I'd make it out of stone, and make it pyramid-shaped. (Disclaimer: IANAA (I am not an architect).)
Not that I believe in any of that "Chariots of the Gods" mumbo-jumbo. I just don't think that you can use the material and architectural design of the pyramids as an argument against it. A far more compelling argument is that no remnants of more "modern-style" architecture exist from that time, nor do any depictions of such architecture exist in the various wall decorations, sculpture, etc., from that period.
To get back on topic, how do they know that there's anything at all behind the "hatch"? Maybe its not a hatch at all. It could be something just set in the wall, and the handles could have been used for tying ropes to for some reason.
I wish they'd add some hardware virtualization features
I am curious what features you'd like to see that aren't there already. The only thing that I can see lacking is the ability to virtualize in level 3 without level 0 support. It would be nice if a (non-software-only) VM could operate entirely in "user" space.
instead of colonizing Mars [...], let's see how viscous pitch is! Yeah, great idea. Geez.
Low-viscosity substances may be very useful during space exploration. For example, a low-viscosity substance may be more efficatious than a flexible solid gasket when sealing the joint between a window and a bulkhead. The only way to know this is to experiment with low-viscosity substances. The experience gained by determining the viscosity of pitch should not be dismissed out-of-hand. Who knows, pitch itself may be just the right substance!
Choosing to save money by not putting a shift register in the printer was one of the most unfortunate decisions in the history of personal computing.
It made sense at the time. A long, long time ago, adding a shift register to a printer would have been very expensive. (This was in the days of 7400-style chips, where six (count 'em, six) NAND gates fit on one 16-pin DIP.) It made a lot more sense to send bits from a register on a minicomputer over parallel wires to a register on the printer, rather than converting them from parallel to serial and back again. In addition, the parallel line returned OOB signals back to a register on the minicomputer (e.g., paper out). Injecting these signals into a serial data stream would have been prohibitively expensive. Finally, many printers had no buffering capability, again, because of the expense. That is, a character would be received, then printed, then the printer would signal its readiness to receive the next character. (I used a Centronics brand dot-matrix printer that behaved this way. (It may have been able to buffer one character ahead, but that was it.))
Now, all of this occurred before the personal computer revolution. So why did early PC designers decide to use the D-15 connector parallel printer port adaptation of the Centronics printer interface? Because that's what printer manufacturers were making. At that time, the majority of printers were still being sold for use with minicomputers. If they had come up with a new interface (e.g., serial), then printer manufacturers would have had to make two different models for each printer, one with the old Centornics interface, and one with the new serial interface. Also, it was easier for the home hobbiest to interface to a parallel port than to a serial port. (I remember interfacing my old KIM-II (which had no printer port) to a printer with a Centronics port. It required a Centronics connector, a cable, a socket for the KIM board that was similar to an ISA or S-100 style socket, and ZERO additional logic chips.)
I do agree with you that the marketplace got "locked in" to using parallel for far longer than was necessary. But I disagree with your assertion that the decision to go parallel was a "suboptimal solution" at that time.
Now, today, it makes no sense to have a parallel interface for any peripheral that I can think of, and, in fact, parallel is being phased out for peripheral interfaces. Witness serial ATA for hard drives, and the removal of the parallel port from several modern motherboard designs (along with other legacy interfaces, such as the serial keyboard, mouse, and modem connectors, not to mention ISA). (Not all parallel is going away; it still has a place, e.g., between memory and the CPU.)
As time goes by, the older stuff goes away, to be replaced by newer stuff that is more appropriate for newer times.
But, at the time, it made sense to do it the way that it was done.
Though MIT's lawyers acknowledged using the Radix image, the school claimed it was allowed to use the image and refused to apologize. The school also remains unwilling to publicly credit Horizon Comics.
Thanks for correcting the misstatement. Also, I didn't know about "*", so thanks for pointing that out, too. (I discovered "#" accidentally when I made a typo once.) Speaking of "*", I just remembered another feature that I use: the named buffer "*", which corresponds to the Windows clipboard. This lets me, say, copy a link from a browser window to the clipboard, then use "*P to paste it into a Vim buffer. Very handy.
Slashdot Mirror
If you are using IDLE to edit your source, select the entire block that you want to indent/outdent, then type CTRL+] or CTRL+[.
If you are using vi (or vim or gvim), navigate to the end of the block, and type mz (mark location in register "z").
Navigate back to the beginning of the block and type <'z or >'z.
The IDLE editor does Python autoindenting for you.
(Of course, it's no vim...)
No, it won't.
Read the articles and PDFs at highliftsystems.com.
For example:
Actually, any positive acceleration no matter how small will do
Actually, any positive velocity, no matter how small, will do.
However, the smaller the velocity, the further away from the Earth the vehicle must travel in order to achieve orbit.
A one-time pad is, by definition, used one time.
If a person uses it twice or more, then it is no longer a one-time pad.
The only way to break a one-time pad is by breaking the method used to generate the key.
For example, using a PRNG is a very poor way to generate a key.
The best way to generate a OTP key is to use a truly random physical event, such as radioactive decay.
Place a geiger counter next to radioactive sample that produces several thousand clicks per second.
Count the number of clicks each second.
If the number of clicks is odd, add a 1 bit to the end of the key.
If it's even, add a 0 bit to the end of the key.
This can produce a CD-ROM-sized key (650MB) in only 21-22 years.
If you would like the key generated in less time, use a larger radioactive sample and reduce the time for each sample, or use multiple samples and counters.
Of course, the best way to handle it would be to have a key combination for rename, but I guess that's too obvious
You mean like F2?
Linux' mascot is a penguin, pronounced "PEN-gwihn".
So why is Linux pronounced "LIHN-uks" and not "PEN-gwihn"?
I think that this is the link for which you are looking.
(Note that I, personally, neither agree nor disagree with the theory presented therein, but I find the idea intriguing.)
This page explains how to decode various methods of disguising an IP address, including the one that you have mentioned.
No, drugs are sold to people who want them.
The SPAM business is less moral than the drug business, legal (alcohol, nicotine, herbal supplements, etc.) or illegal (pot, crack, etc.).
This happens to me sometimes when I'm waking up.
I am fully consious, but I can't move any part of my body, except for my eyes and eylids.
The thing is, if I close my eyes and try to move a part of my body, it feels like I'm actually moving it.
I can "get up" and "move" around the room, but if I open my eyes, I'm immediately snapped back to my prone position.
Eventually, I lose consiousness and reawaken a few moments later, this time able to move.
I used to think that the whole experience was a weird dream, but now that I have a clock that I can see from my bed, I've noticed that when I wake up for real, the time is only one or two minutes past what I observed when I was paralyzed.
My geuess is that what is happening is that the mechanism that the body uses to prevent sleepwalking (and other movement while sleeping) has not disengaged like it should when I regain conciousness after sleeping.
Losing consiousness, then reawakening, "resets" the mechanism.
This happens to me several times a year.
Have you ever called Tech Support?
"Uh, so your password was rejected?
Have your tried defragging your hard disk?"
I never realized the full scope of psychological damage that living in a trailer park had until I started watching Jerry Springer on televeision. Just about every person who would show up who seemed a little bit off/made bad decisions/etc had a history of living in trailer parks. I've learned more about psychology from that show than the 1.5 years of psych classes that I took in high school and I reccomend the show to all slashdotters.
handful of symbols of authority that differ only in appearance
And that's the reason to vote Libertarian; they don't differ "only in appearance"; they differ in much more fundamental ways.
Er, I don't think that "Fantasia" follows that plot at all.
http://www.essencompu.com ...
The site requires JavaScript.
They just lost a potential customer.
When will these people learn that some of us care about the security of our computers, and deliberately have JavaScript disabled for that reason?
If you want to have JavaScript, ActiveX, Flash, and all of that other crap to capture the attention of the unwashed masses, that's fine, but you should provide an alternate method of access for those of us who know better and have better things to do than watch flashy graphics that have nothing whatsoever to so with the product that you are trying to sell.
Similarly, http://www.resellerratings.com/seller2121.html tries to save multiple cookies, one for each image on the page, it seems.
One per page should be sufficient.
I won't be returning there, either.
I have developed a completely unbreakable one-time pad.
Here it is:
3289743289702349802 872378238732879 238732870932098732 34278324890324 7832487923809723 23870945457 301208701912 012071203 4309873432 6210789216 320934246932 120107630128732 050 4044354543 0 207023501324 402307420 213078430 073240324
Use it as often as you wish!
The best proof that the pyramids aren't the product of some strange advanced alien or Atlanean technology is that they are in fact pyramids. Genuinely advanced tech can construct buildings of that size using many other designs.
Another reason to build a pyramid shape is that it is likely to last longer.
(Most pyramids were built as tombs, and were meant to last forever.)
If you look at non-pyramidal above-ground ancient buildings, they have all suffered damage from the elements, mostly to their roofs.
After all, stone lasts a long time, but it's not the best material to use for a lintel or beam.
In contrast, most of the damage suffered by pyramids was due to vandalism (at least, in Egypt; the meso-American pyramids were also damaged by the encroaching jungle, but still fared better than other above-ground buildings (except maybe the plazas, but those aren't really buildings)).
Are there materials available today that last as long as stone in a desert or desert-like environment?
I don't know of any.
(Perhaps some forms of concrete.)
If I were designing a structure today that I wanted to survive for as long as possible with a minimum of maintenance in a desert-like environment, I'd make it out of stone, and make it pyramid-shaped.
(Disclaimer: IANAA (I am not an architect).)
Not that I believe in any of that "Chariots of the Gods" mumbo-jumbo.
I just don't think that you can use the material and architectural design of the pyramids as an argument against it.
A far more compelling argument is that no remnants of more "modern-style" architecture exist from that time, nor do any depictions of such architecture exist in the various wall decorations, sculpture, etc., from that period.
To get back on topic, how do they know that there's anything at all behind the "hatch"?
Maybe its not a hatch at all.
It could be something just set in the wall, and the handles could have been used for tying ropes to for some reason.
Hmmm, is that less than the skill required to go to WindowsUpdate.com and click a button?
The point is, they can do it.
Where on WindowsUpdate.com do you go to click on a button to install the fix for the MS Word INCLUDETEXT bug?
I wish they'd add some hardware virtualization features
I am curious what features you'd like to see that aren't there already.
The only thing that I can see lacking is the ability to virtualize in level 3 without level 0 support.
It would be nice if a (non-software-only) VM could operate entirely in "user" space.
instead of colonizing Mars [...], let's see how viscous pitch is! Yeah, great idea. Geez.
Low-viscosity substances may be very useful during space exploration.
For example, a low-viscosity substance may be more efficatious than a flexible solid gasket when sealing the joint between a window and a bulkhead.
The only way to know this is to experiment with low-viscosity substances.
The experience gained by determining the viscosity of pitch should not be dismissed out-of-hand.
Who knows, pitch itself may be just the right substance!
Minor correction:
Six inverters fit on a 16-pin DIP.
Only four dual-input NAND gates fit on a 16-pin DIP.
Choosing to save money by not putting a shift register in the printer was one of the most unfortunate decisions in the history of personal computing.
It made sense at the time.
A long, long time ago, adding a shift register to a printer would have been very expensive.
(This was in the days of 7400-style chips, where six (count 'em, six) NAND gates fit on one 16-pin DIP.)
It made a lot more sense to send bits from a register on a minicomputer over parallel wires to a register on the printer, rather than converting them from parallel to serial and back again.
In addition, the parallel line returned OOB signals back to a register on the minicomputer (e.g., paper out).
Injecting these signals into a serial data stream would have been prohibitively expensive.
Finally, many printers had no buffering capability, again, because of the expense.
That is, a character would be received, then printed, then the printer would signal its readiness to receive the next character.
(I used a Centronics brand dot-matrix printer that behaved this way.
(It may have been able to buffer one character ahead, but that was it.))
Now, all of this occurred before the personal computer revolution.
So why did early PC designers decide to use the D-15 connector parallel printer port adaptation of the Centronics printer interface?
Because that's what printer manufacturers were making.
At that time, the majority of printers were still being sold for use with minicomputers.
If they had come up with a new interface (e.g., serial), then printer manufacturers would have had to make two different models for each printer, one with the old Centornics interface, and one with the new serial interface.
Also, it was easier for the home hobbiest to interface to a parallel port than to a serial port.
(I remember interfacing my old KIM-II (which had no printer port) to a printer with a Centronics port.
It required a Centronics connector, a cable, a socket for the KIM board that was similar to an ISA or S-100 style socket, and ZERO additional logic chips.)
I do agree with you that the marketplace got "locked in" to using parallel for far longer than was necessary.
But I disagree with your assertion that the decision to go parallel was a "suboptimal solution" at that time.
Now, today, it makes no sense to have a parallel interface for any peripheral that I can think of, and, in fact, parallel is being phased out for peripheral interfaces.
Witness serial ATA for hard drives, and the removal of the parallel port from several modern motherboard designs
(along with other legacy interfaces, such as the serial keyboard, mouse, and modem connectors, not to mention ISA).
(Not all parallel is going away; it still has a place, e.g., between memory and the CPU.)
As time goes by, the older stuff goes away, to be replaced by newer stuff that is more appropriate for newer times.
But, at the time, it made sense to do it the way that it was done.
From http://horizoncomics.com/radix/:
Thanks for correcting the misstatement.
Also, I didn't know about "*", so thanks for pointing that out, too.
(I discovered "#" accidentally when I made a typo once.)
Speaking of "*", I just remembered another feature that I use: the named buffer "*", which corresponds to the Windows clipboard.
This lets me, say, copy a link from a browser window to the clipboard, then use "*P to paste it into a Vim buffer.
Very handy.