top Be True To Your CS School: LinkedIn Ranks US Schools For Job-Seeking Programmers
Hmmm, I really like that saying, but I learned it as
"In theory, theory and practice are the same; in practice, they're different." It might even be a Unix fortune. I've seen it attributed to Yogi Berra. (A lot of things are attributed to Yogi Berra by the way, "Deja Vu all over again" is another one.)
In my day (and I'm old enough to have actually seen Yogi Berra play, though he was in the outfield by then), computers were not that common, so going to school was a place to have access to a computer. I did notice that by the 1990s, employers would give you some kind of test to make sure you weren't a fraud during the job interview, no matter what your resume said.
top Goodbye, World? 5 Languages That Might Not Be Long For This World
I was a CS major in the late 70s too. We learned to program at least a smattering of Norwegian University Algol on our Univac 1106, as well as SNOBOL (StriNg Oriented and symBOlic Language), APL and something called XL6 (a 'list processing language' so obscure it's not even in the wikipedia, but I'm pretty sure I got the name right.) In other classes I learned some specialty languages, Dynamo (Dynamic Models) and GPSS (General Purpose Simulation System).
Whatever happened to Algol anyway?
As I recall, SNOBOL was actually pretty cool, sort of like Pearl in that you could learn to do some useful things very quickly in it. I don't know that the code was all that readable even to the coder after 3 weeks though, since I never had to look at my code 3 weeks later. And I think even the professor who taught it complained about some of the choices for characters to use as operators. Still, I have this lingering feeling that somehow SNOBOL was a language that was unfairly passed over, maybe because of the comical name.
top 2014 Nobel Prize In Physics Awarded To the Inventors of the Blue LED
As I understand it, our eyes can differentiate the frequencies of visible light into the colors of the rainbow, but the rainbow is a continuum frequencies. There's not just one frequency that's perceived as 'red' for instance, but rather a band of frequencies perceived as 'red'. So, does the 'white' light from these newfangled things produce one red frequency, one green, and one blue, or is there a band of frequencies, such as you get from incandescence? And if there isn't a band of frequencies, will it matter to our eyes?
top Object Oriented Linux Kernel With C++ Driver Support
Full disclosure: I have lots of experience with C and almost no experience with C++. (I started to learn C++ but I was suspicious of its complexity. At least, that's what I tell myself, but maybe I was just lazy or too old to learn new tricks. Anyhow, I didn't learn it.)
"Every sufficiently large C project re-invents key portions of C++, poorly."
I have to wonder if that is because every sufficiently large C project is going to have C++ programmers in it who are 'thinking' in C++, and if it was team just of guys like me we would be doing things strictly the 'C' way.
(Incidentally, I realize that C has lots of faults. That's why I'm intrigued by languages like Golang (aka Go) because Ken Thompson is one of the designers, out to fix the faults of his 1st language.)
top The Physics of Space Battles
If you're going to have reaction drive style thrusters for maneuvering, you're going to run out of fuel very quickly, dissipating mass, unless your thrusters are thrusting out little bits of mass at VERY high speed, in which case they could be used as weapons themselves. (Sci Fi writer Larry Niven came up with the idea of a reaction drive as a weapon, google the 'Kzinti Lesson' for more info.)
I think it would be interesting to have space battles where several fighters were somehow connected to each other via some sort of tractor beam, so they maneuvered by transferring momentum between each other instead of dissipating mass into the vastness of space; they might look a bit like bolas circling each other but with quick changes snapping in and out as they went in to battle, or maybe they would be tethered to a mother ship, somewhat like World War II aircraft carrier that sends out figher planes to do the fighting. The mother ship would have enough mass to let the fighters seem to be free to zap around easily.
("Cough Cough") I wrote an unpublished Sci Fi Novel (I did send it to a bunch of publishers at the time, over 10 years ago), where interstellar travel used 'draggers'. There was no faster than light travel so it took years and years to go between even nearby stars, (The travelers themselves would be in an accelerated frame of reference so it wouldn't be so long for them.) In the novel it took a long time to set up a system between two solar systems, similar to the way it takes a long time to set up a railway between two cities, but then you could use it very efficiently. A vessel would attach itself to a dragger, and be quickly accelerated (that's the hard part, dealing with the sudden accleration that would flatten everything against the back wall like you were in a super cream separator), the dragger, much more massive than the vessel, would be slowed down some, but then, at the other end, as the dragger wheeled around a star, the vessel would transfer it's momentum back to the dragger and slow down to become part of the other solar system.
The thing about conservation of momentum is that it means the center of mass of a closed system doesn't change. If two solar systems and the draggers going between them were a closed system, then the center of mass would shift as the vessel moved between one and the other, but, if the vessel returned to the original system again, then the original center of mass would be restored, and the energy used to move between them could be recycled, plus there wouldn't be reaction mass being spewed out all over the place.
top Nvidia Sinks Moon Landing Hoax Using Virtual Light
I'm just wondering if when a society has conspiracy theorists speaking out freely, the 'tin hat' crowd, is that the sign of a healthy society or not.
It's bad I suppose when conspiracy theorists are flat out wrong, but would a repressive government try to silence them or do repressive governments only bother suppressing people who are telling the Truth?
Does it do harm in that when somebody really finds something bad going on people will tend to disbelieve them because of all the flakos (sort of like crying wolf too many times)?
Is there some sort of bell shaped curve of attitude towards what the establishment tells us in that a few people on one end of the curve will believe everything and bury their heads in the sand over any problem (like maybe global warming), and a few on the other end of the curve will leap at anything as a plot, while most people are somewhere in the middle? If there is such a curve, maybe it's characteristics (skew, standard deviation, etc) are what determine the 'health' of the society.
top Study: Chimpanzees Have Evolved To Kill Each Other
Lions and wolves will fight and kill each other. One argument I've seen is that they are at the top of the food chain so there is no other animal out there to keep their numbers in check.
top Massive Study Searching For Genes Behind Intelligence Finds Little
I was wondering about epigentics myself. If I had points I'd mod the anonymous coward up.
top Microsoft Paid NFL $400 Million To Use Surface, But Announcers Call Them iPads
I agree calling the thing 'Surface' could lead to confusion. If an announcer said something like "the coach is checking his Surface now", what percentage of viewers might have thought he was referring to something other than the gadget in the coach's hand?
top GSOC Project Works To Emulate Systemd For OpenBSD
Hmmm, it sounds like what's needed is a daemon that queries location from a GPS system as well as time, and automatically adjusts timezone and whatever (would you want it to change language? Seems like that's more of a user thing, and something you only change when you change users). Of course, it would require the system be hooked up to a GPS system, otherwise do things the old-fashioned manual way. There could be an app that puts up a map where you click on the location I suppose, instead of fiddling with configuration files.
I'm an old time unix user (going back to 4.2 BSD days). I like the idea of text configuration files for everything. But I wouldn't mind a front end app that was easier to use than constantly having to look at man pages on the formats of everything. A sort of IDE for all the text based config files the way an IDE is a helper for the text code files of a programming language. (But NOT a binary that bypasses the text configs! Which is what systemd seems to be doing, if I've been reading this right.)
about a month and a half ago
top Scala Designer Martin Odersky On Next Steps
Isn't Python supposed to have suffered from a big revision change? My first thought, when I read about Dr Odersky making revisions is that he would be running into the same problem that Python did. Maybe Scala isn't as widely adopted yet as Pascal was, and he thinks he should fix it now before there would be too big of a flap over it. (Actually, if they're changing Java as I gather they are from the interview, wouldn't that also be a blowback for Java?)
I'm an old timer who has never used any of these new-fangled languages professionally (where new-fangled is anything newer then C), so I'm not trying to editorialize here, just wondering.
about a month and a half ago
top Research Shows RISC vs. CISC Doesn't Matter
Back in the 1970s I worked at a computer manufacturer, writing code for their product's instruction set in assembler. The computers were designed and built around AMD2901 bit slices. The hardware guys implemented the instruction sets using microcode and, as the computers got bigger and more complicated some of the instructions got so elaborate that programmers found ways to do an operation faster using a few simpler instructions instead of one complicated one.
Nowadays, with the kind of speedups from using cache memory, branch prediction, and so on, I reckon it could be a whole different ballgame. I suspect though, that proving correctness might become the most important criteria, and simpler would make proving correctness easier.
top Can Our Computers Continue To Get Smaller and More Powerful?
The Concorde also had a sonic boom which limited the airports it could fly to. (Competitors may have exaggerated the problem, but I do believe it was a problem.)
top Interviews: Ask Bjarne Stroustrup About Programming and C++
I'm not a C++ programmer. But I have come across situations where people seemed to deliberately use weird, obfuscating stuff just so nobody else could take their place, (I particularly remember a company where somebody had convinced management to use UUCP instead of FTP for internal data xfers because it was more secure. When I was being interviewed on the phone they asked me what I thought of UUCP, and I think I was one of the few people they interviewed who had even heard of it.)
So, if C++ is as complicated and full of stuff as I keep reading about, I can see how somebody might deliberately cultivate for themselves a set of esoteric off the wall constructions that they'd throw in their code just so nobody else could work with it, all the time selling management on how 'good' it was.
top Interviews: Ask Bjarne Stroustrup About Programming and C++
"Life is a learning experience, so break out the reference manuals"
That's fine if you're a student. I've been in situations where I was working for a small company and I had to fix problems for the company quickly so they could bill their client and make payroll. If C++ is supposed to be a bunch of languages rolled in to one, then, the code should be flagged, "This is C++ as a functional language, only people who know all the functional stuff should use it, or be hired to maintain it in the future, and don't stick in anything of exotic flavors X, Y, or Z from C++ in it". Or, if the company was serious about doing the product in a functional way, one could use Haskell or Scheme or whatever in the first place."
top Wiring Programmers To Prevent Buggy Code
NOW, after my moderator points have expired, somebody posts something I would want to mod up!
From my own experience, when I had really difficult, gnarly problems, the code came out really clean at the end. The bugs came when I was least expecting them with stuff that should have been a piece of cake.
I think it might be a bit like what somebody once told me about private airplane pilots. Statistically, accidents didn't happen the most when people were novices, but after a certain number of flight hours. I don't remember exactly what they were. Actually there were 2 peaks, for the sake of argument I'll say that one was at 2000 hours and one at 8000 hours flight time. An interesting phenomenon.
top Comparison: Linux Text Editors
I generally use vi myself, though I've actually forgotten some of the fancier stuff. I even have some muscle memory for emacs which I acquired because I had an Atari 500 ST back in the 1980s. Having cut my teeth on old glass teletypes (Uniscopes, Hazeltines, and even genuine VT-100s with the gold keys pad) I needed a basic term window and text editor for my Atari. The best text editor for the Atari that I could find on Usenet in the old binaries groups was 'Micro-Emacs', a very stripped down version of emacs, but in using it, my fingers learned CTR-E to go to the end of a line, CTRL X 2 to split a screen, etc. It's because of that that I still use emacs sometimes for very basic stuff. (I always install the -nox version). Heh, back in the 80s, I knew if I was on a fast computer at work if I could use emacs and it was responsive, which made Micro-Emacs, running on my Atari so well, all that much more impressive.
top The Simultaneous Rise and Decline of
IANAG (I am not a gamer). Also, I did not RTFA, but I did read the summary, where it explicitly didn't comment on the game itself, but on 'poor behavior'. I think there's a difference.
top Evidence of a Correction To the Speed of Light
Ah, this is getting off topic, but your comment raised a question in my mind. Suppose the light is blue shifted for an observer approaching it so that it does have the energy to form an electron-positron pair, but for another observer not approaching it as fast, it doesn't have the energy. Might one observer see the pair formation while the other did not?
top After the Belfast Project Fiasco, Time For Another Look At Time Capsule Crypto?
Could the encryption be in the form of a one time pad? Then it would be 'unbreakable'. Perhaps there could be several one time pads, and only when all of them were brought together would the data be decodable.
Ultimately, the only suggestion I saw, including suggestions on the site, that would be as inviolable as the laws of physics, is sending the message in to space as electromagnetic radiation to a place where it would be echoed back. But first you would have to have something in position to do the echoing, so that won't be practical for a long time.
All the other methods depend on the world not changing too much. Governments, laws, and institutions remaining stable, Encryption methods not being cracked. Using a satellite in a far elliptical orbit would work with present technology, but if the message is supposed to be kept for 50 or 100 years, technology might catch up and the satellite be retrieved sooner than the originators wanted.