And what is the justification for this? So it'll fit better on ancient, obsolete harware.
That's not the argument against it. I guess talking out of your ass is easier than actually reading about the issues involved. Of course, I'm sure that you innately know more about this topic than the FreeBSD and Perl experts who worked on this solution, together, at length.
Hint: Perl has always been hard to incorporate into the BSD build structure and breaks easily, especially in cases like cross-compilation. Because it's so fragile, it's a lot of work to maintain and tends to fall out of date. These are the kinds of things you need to worry about when you're actually maintaining an operating system, instead of throwing a kernel and 100's of externally maintained packages together and calling it done.
What if I was trying to break into pick the lock on someone's garage door in the middle of the night, but I had a crack-whore riding around with me.
Uh, there's an easier and simpler example which does not invoke the crack-whore. You have a garage that you unlock and open by hand (that is, without a garage door opener). You come home after dark, and no lights are on. You need the headlights to see the garage door lock, but need to take your keyring with you to unlock the garage door.
Elemental hydrogen is not necessarily unstable, and most hydrogen is not a dimer. It's a big universe. Don't let the fact that you live in a dense, UV-shielded part of it color your beliefs.
No. Discovering new galaxies is easy and expected. It's not like discovering a new continent. It's like discovering a new flounder. (No, not a new species of flounder. Just another damn fish.)
We're pretty sure we know what the earth looks like on large scales. If we found a new continent the size of Australia hiding somewhere, that would be a big deal, and we'd have to re-think geography.
Figuring out the average density of the universe and related quantities, which have implications for dark matter, is like figuring out the average density of flounder in the ocean. We haven't counted all of the flounder, but can make reasonable statistical arguments based on what we know about flounder. If we send a boat to a new part of the ocean, we'll "discover" thousands of new flounder. Our statistics will improve. But unless there are a lot more, or a lot fewer, flounder than we expect, our picture of the flounder statistics doesn't change much.
For the record, "discovering new galaxies" is part of my job. It's probably at least as easy as discovering new flounder, and you don't get as wet. You do need bigger, more expensive equipment to do it, though.
I don't know of any AO systems on large telescopes that deform the secondary mirror. It's still a big, heavy mirror. The AO system is normally a complicated optical system with many small elements; among these are very small, lightweight deformable mirrors perhaps a few centimeters across.
There are significant shortcomings with AO. They offer only small fields of view (no good for surveys) and work only in the near-IR. You also need a bright star near the object of interest (in order to get enough photons per second to determine what the atmosphere is doing), or a laser guide star which is a very young technology.
Given HST's wider field of view (especially with this new camera) and wavelength coverage clear to the near-UV, HST and AO will complement each other for a long time. I can't see AO winning in all respects during HST's lifetime.
For programs that include filenames in their output (such as wc and err... grep), cat * |... prevents that when you don't want it.
Don't replace "cat foo | grep bar" with "grep bar foo"; replace it with "grep bar < foo". The point isn't that "grep" can take filenames on the command line instead of using stdin; the point is that you can provide a single file on stdin without firing up an unnecessary cat(1).
You're really annoyed that some good games developers are starting to write Palm games? Which will improve the quality of the software available on the PalmOS platform? And increase the profile of the games industry on PalmOS? And all because your game might look crap in comparison?
Sure, because we know successful companies always compete on their technological merit, rather than marketing, lawsuits, or legislation.
Side note: That's a very interesting tidbit about the bubonic plague resistance; natural selection on humans at work. I'm curious, what are some of the other consequences of this defect?
It provides excellent time resolution, so that you record every detected photon as a separate event, and build up a spectrum (including time-resolution if you want it). You don't confuse a 400 nm photon with two 800 nm photons unless they arrive faster than your sampling interval (which, by design, must be made unlikely for the detector to be useful).
The film used in that review is slow expensive slide film. It's perfect for the kind of picture he uses for the example. But the
average person uses something like Kodak Max 800, which is nowhere near this good in terms of grain.
Yes, photography is just like most things--most people are satisfied with crap. Velvia might be expensive (but you can get it for $4.19 per roll of 36, and slide processing is cheaper than prints for a given level of lab quality), but the digital technologies evaluated are also high-end. It's a comparison of the best that film and digital have to offer. If your standards are low enough for consumer-grade 800 speed film or a cheap digital camera, then you should have no trouble getting adequate quality with either technology.
Also, note that the digital camera tests are done off of a print, not off of reality
So were the 35mm examples in the same section, so it's an apples-to-apples comparison. Comparing either the digital or 35mm examples in that section with the 4x5 or 35mm slides of "reality" would be unfair, but the author doesn't do that.
Yeah, judges should be limited to minor things like imprisoning human beings and deciding how to preserve our fundamental rights. No way should they be able to pull the plug on a bunch of machines.
Uh, no, I think wu-ftpd is still an FTP server no matter what you compare it against. Maybe you meant sendmail is the wu-ftpd of SMTP servers? Or IIS is the BIND of HTTP servers? And so forth... fun for hours!
There are about 6,000,000,000 people living on the earth. If they live about 75 years, the average daily death rate is about 220,000 per day. While the attacks were horrible, the "everyday" causes of death still dominated. Even among US citizens, non-terrorism deaths would be a few times larger than the terrorist fatalities.
So, if the article says he died of cancer, why on earth would you ask whether he died of cancer or the attacks?
No, one can also consult reference materials, but this requires initiative.
(And sometimes one wants to learn something that nobody else knows. This requires even more effort. Imagine the state of human knowledge if the only way to learn were to ask someone else.)
Re:Fascinating, but what's the attraction?
on
Virtual Astronomy
·
· Score: 1
You're completely missing the boat here. The "averate Internet user" is not a "learned and persistent [sic] amateur." This is not an SETI@Home-like effort to get end-users to donate "his/her spare CPU cycles." It is an effort to distribute data to interested researchers, including amateurs.
Slashdot Mirror
Hint: Perl has always been hard to incorporate into the BSD build structure and breaks easily, especially in cases like cross-compilation. Because it's so fragile, it's a lot of work to maintain and tends to fall out of date. These are the kinds of things you need to worry about when you're actually maintaining an operating system, instead of throwing a kernel and 100's of externally maintained packages together and calling it done.
Elemental hydrogen is not necessarily unstable, and most hydrogen is not a dimer. It's a big universe. Don't let the fact that you live in a dense, UV-shielded part of it color your beliefs.
(Most hydrogen is ionized, too.)
No. Discovering new galaxies is easy and expected. It's not like discovering a new continent. It's like discovering a new flounder. (No, not a new species of flounder. Just another damn fish.)
We're pretty sure we know what the earth looks like on large scales. If we found a new continent the size of Australia hiding somewhere, that would be a big deal, and we'd have to re-think geography.
Figuring out the average density of the universe and related quantities, which have implications for dark matter, is like figuring out the average density of flounder in the ocean. We haven't counted all of the flounder, but can make reasonable statistical arguments based on what we know about flounder. If we send a boat to a new part of the ocean, we'll "discover" thousands of new flounder. Our statistics will improve. But unless there are a lot more, or a lot fewer, flounder than we expect, our picture of the flounder statistics doesn't change much.
For the record, "discovering new galaxies" is part of my job. It's probably at least as easy as discovering new flounder, and you don't get as wet. You do need bigger, more expensive equipment to do it, though.
I don't know of any AO systems on large telescopes that deform the secondary mirror. It's still a big, heavy mirror. The AO system is normally a complicated optical system with many small elements; among these are very small, lightweight deformable mirrors perhaps a few centimeters across.
There are significant shortcomings with AO. They offer only small fields of view (no good for surveys) and work only in the near-IR. You also need a bright star near the object of interest (in order to get enough photons per second to determine what the atmosphere is doing), or a laser guide star which is a very young technology.
Given HST's wider field of view (especially with this new camera) and wavelength coverage clear to the near-UV, HST and AO will complement each other for a long time. I can't see AO winning in all respects during HST's lifetime.
Please tell me where I can get a decent altimeter for $5.
The issue was connecting to a server, not receiving the page from it.
It provides excellent time resolution, so that you record every detected photon as a separate event, and build up a spectrum (including time-resolution if you want it). You don't confuse a 400 nm photon with two 800 nm photons unless they arrive faster than your sampling interval (which, by design, must be made unlikely for the detector to be useful).
The R, G, and B values are normalized so that the sum is 1. The concept of "brightness" doesn't really mean anything in the context of the result.
Yeah, judges should be limited to minor things like imprisoning human beings and deciding how to preserve our fundamental rights. No way should they be able to pull the plug on a bunch of machines.
Uh, no, I think wu-ftpd is still an FTP server no matter what you compare it against. Maybe you meant sendmail is the wu-ftpd of SMTP servers? Or IIS is the BIND of HTTP servers? And so forth... fun for hours!
There are about 6,000,000,000 people living on the earth. If they live about 75 years, the average daily death rate is about 220,000 per day. While the attacks were horrible, the "everyday" causes of death still dominated. Even among US citizens, non-terrorism deaths would be a few times larger than the terrorist fatalities.
So, if the article says he died of cancer, why on earth would you ask whether he died of cancer or the attacks?
No, one can also consult reference materials, but this requires initiative.
(And sometimes one wants to learn something that nobody else knows. This requires even more effort. Imagine the state of human knowledge if the only way to learn were to ask someone else.)
You're completely missing the boat here. The "averate Internet user" is not a "learned and persistent [sic] amateur." This is not an SETI@Home-like effort to get end-users to donate "his/her spare CPU cycles." It is an effort to distribute data to interested researchers, including amateurs.
"Math is hard."