I get this condition, especially after editing a large MS-Word file on a USB drive and exiting, that Windows never tells you it is OK to pull out the drive.
I am in a hurry, late for a meeting or to catch a ride home, and I never get the "Safe to Remove" message. So I end up having to do a Shut down on the computer to remove the drive when Windows has saved ev-er-y-thing it has cached, but wouldn't you know it, I have to wait for an Update to complete before Windows even shuts down.
This is when one wants to throw the computer out the window, but I never know if it is OK to yank the USB drive before doing this?
If a crew member has the presence of mind to reach for the correct switches -- which it is claimed someone did on a prior flight of the Indonesian plane -- I don't think the direction that the switches operate is that significant a human-factors problem.
I doubt we will get a recording on the Cockpit Voice Recording of the First Officer yelling in terror, "Captain, I am pulling on the disconnect switches, but they are jammed!"
There is strong evidence that the stabilizer was pushing the nose down of both ill-fated planes. At this point, however, we really need to wait for more results from the accident investigation as to the particular hardware fault (The vane sensor? The electronics reading vane position? The flight-control computer? Whether other sensors were also giving bad readings?) and a more complete picture regarding conditions the crew were facing (Did they receive proper training -- part of what we expect from the crew of such a craft is the ability to recover from expected and unexpected fault conditions? Were they overwhelmed by multiple alarms?)
The accusations of criminal complacency, the desire that the executives of Boeing along with the thousands of people working for their company be somehow punished, along with the formal criminal investigation, all of these seem premature until the accident investigators get a better picture.
What if a combination of a reflective roof, improved sealing and insulation of attic ducts, and a higher-efficiency A/C unit is more cost effective than a solar photovoltaic panel?
The reflective roof is more than covering your house in tin -- there are coatings that reflect sunlight with better combined ability to reflect incoming radiation along with emit heat that gets in as infrared. Florida houses typically lack basements, so the A/C ductwork is in the hot attic -- sealing air leaks and insulating the ducts helps a lot. Newer A/C units are much more efficient.
"Uh, why not do both solar electric and A/C efficiency?" Indeed, why not, but all of the resources and press attention is going into the production side over the demand side. Low-hanging fruit, baby!
On the other hand, setting the local reference to null right after calling the dispose() method will set a runtime Null Pointer Reference exception if I erroneously invoke a method using that reference afterward. The reason for a dispose() method, by the way, is to free resources such as file handles, in the absence of an object destructor.
There are all manner of corrections that can come up in a review of even the shortest code snippet, that is, unless you fire a person after their first use of an inefficient but otherwise correct practice.
Because in Java (note the comment about garbage collection), all object allocations go on the heap.
OK, OK, there is Escape Analysis where the runtime, if it so optimizes your code, will allocate on the stack an object from which no references "escape" the current context.
A quick Web search did not turn up "sloppy vector" as a coding style.
I understand how locality of reference can make a big difference in processing speed. But is "sloppy vector" simply a description of attempting to optimize loops scanning through arrays for the vector-architecture supercomputers but doing it in a haphazard way? Or is it a term-of-art that I can read about someplace?
"numerous full lifecycle analyses have concluded lower CO2e for EV vs ICE"
My point exactly. There are those numerous analyses weighing in on the EV being greener than the ICE, and there are other analyses, perhaps less numerous, weighing the other way. To consider the different assumptions in these different analyses == long discussion.
Furthermore, the full life cycle analyses I have seen that favor the EV do not, at this time, favor it overwhelmingly over the ICE. The ICE is also a "moving target" in terms of engine improvements boosting efficiency.
Companies do indeed go bankrupt. There are different modes of bankruptcy, and in what they call Chapter 11, the company stays in business, only holders of stock and perhaps some bonds lose all or part of their investment.
When a company runs out of money -- they lack the cash on hand to pay their employees, their suppliers demand immediate payment and/or loans come due -- is often hard to tell from the outside looking in when that is going to happen. A company can get by on the credit terms extended to them and than bam!, one day they cannot.
The Shorts and Haters have been chanting Bankruptcy! Bankruptcy! for the dozen or so years Tesla has been a "public" company, and Mr. Musk joked about it, was it around May 2018? Since then Mr. Musk admitted that the company came close to that happening.
As to the mental health of Mr. Musk, there was the matter of the putative offer to take the company private at $420/share, at a time when it was trading in the mid to upper 300's. As far as anyone can tell, that offer was, in the software parlance, complete vaporware. This kind of stunt is something responsible people in the shareholder-owned-company world don't do, and the SEC did look upon the entire affair with askance. Though I suppose along the lines of ancient Greek philosophical thought experiments about persons who never tell the truth, can we even believe Mr. Musk's admission of how close Tesla came to shutting down when Financing Assured at $420 was all made up?
There has been indeed turnover of top Tesla executives and especially on the finance and accounting side. It is hard to tell if this rate is higher or lower than in situations where the company isn't being scrutinized as much. But again, given the lack of "transparency" of this company, to put it charitably, making inferences based on such things is all we have.
I think the jury is still out on whether Tesla can "scale." One of the supposed failed prophesies of the naysayers, shorts and haters was the claim around early 2018 that Tesla would never get past 1000 cars/week whereas they easily made it to 5000 cars/week with claims they tested their line at 7000. Well, the promises of Tesla "scaling" or "breaking out" or "disrupting" the entire auto industry were based on part on what Elon Musk described as an Alien Dreadnought -- a very highly automated factory capable of achieving high profit margins on a Model 3 selling for $35,000.
From what I hear, the Alien Dreadnought didn't break out, it broke down. Tesla switched to hiring enough shifts to operate Fremont Assembly 24/7, which is a very unusual practice in the cost-conscious auto industry in all segments from basic transportation to premium vehicles. They also gave up (at least for now) on a 35K Model 3 and found a ready market for a 50K+ optioned-up Model 3, although recently they are making price reductions on that.
For Tesla to scale up from their 2018 Q3 and Q4 production that allowed them to squeak by with a slim profit, it appears that hopes of higher production to serve a global market hang on the Shanghai factory. Mr. Musk said as much in a "conference call" to investors, when questioned by a financial analyst about where more cars will be made, he made one of his trademark remarks, "In a place called Shanghai." Well, the Shanghai factory is this expanse of mud right now, and Mr. Musk or other Tesla executives have "guided" that they will have this factory making a substantial number of cars by the end of 2019. Yes, workers in China have been known to work such miracles and the Chinese government has a way of making these happen that they choose to make happen, but where the capital to do this is coming from is really unclear at this point. It isn't coming from the slim profits from the last two quarters.
Do I need to continue? Yeah, Tesla cars catching fire may be overblown, but I have an N=1 of a computer science professor buying himself a Model 3 and passing on the Autopilot feature as something not ready for prime time.
Remember Madge at the nail salon talking up Palmolive dish detergent?
Madge: You're soaking in it! Salon patron: (jerks hands out of liquid)
The front-end of MATLAB is written in Java. MATLAB is a scripting environment for Java -- you can create instances of Java classes, assign them to MATLAB variables and invoke their methods. Java arrays of numeric types are more-or-less compatible with MATLAB "matrix" variables. I tell people using MATLAB, "Java, you're programming with it!" (person jerks hands away from keyboard)
I suspect that other such programming environments (Maple, Mathematica) may be doing the same thing.
There are all kinds of uses for a modern spreadsheet program, even for an engineer -- producing tables and figures for reports, formulating budgets.
My main use is for quick data visualization. Run a program in Eclipse that generates tab-separated numeric output, paste the numbers into Excel, select columns of data and view the resulting plot. The flexibility of such software saves having to write a GUI for every program that generates engineering data.
I concur with you entirely, but I think there is a snicker-and-giggle factor here for this guying specializing in collecting spreadsheet programs.
John Trimmer self-published the book How to Avoid Huge Ships and every online reference to this rare book is filled with jokes. How do you avoid huge ships? Simple, don't cross their paths, and so on. Trimmer's book, however, was pitched towards the captains or operators of small vessels such as fishing boats and pleasure craft, who indeed give gray hairs to the captains and pilots of tankers and container ships that must traverse the same coastal waters and harbors. Maybe it is like pedestrians and motorists cutting in front of trains, where it doesn't register that a train cannot stop on a dime and neither can one of those huge ships.
The book tries to explain from the perspective of a former harbor pilot why it is not a good idea for a small boat to cut in front of a huge ship, and this explanation is necessary because I lot of small boat operators do just that. I am not able to get ahold of this book so there may be more to it than that -- maybe a small craft can get sucked into the bow wake of a much bigger ship and Captain Trimmer gives instructions on how to stay clear?
This collection of spreadsheet programs is a historical treasure, and spreadsheet software is one of the most used apps on small computers. But spreadsheet software is not kewl and computer users who do stuff with spreadsheets instead of writing custom Perl scripts are not leet, hence all of the jokes and people placing this poor man on the autism spectrum.
Slashdot Mirror
Pick any two.
I get this condition, especially after editing a large MS-Word file on a USB drive and exiting, that Windows never tells you it is OK to pull out the drive.
I am in a hurry, late for a meeting or to catch a ride home, and I never get the "Safe to Remove" message. So I end up having to do a Shut down on the computer to remove the drive when Windows has saved ev-er-y-thing it has cached, but wouldn't you know it, I have to wait for an Update to complete before Windows even shuts down.
This is when one wants to throw the computer out the window, but I never know if it is OK to yank the USB drive before doing this?
that you even know about "Try again, Skip or Cancel?
If a crew member has the presence of mind to reach for the correct switches -- which it is claimed someone did on a prior flight of the Indonesian plane -- I don't think the direction that the switches operate is that significant a human-factors problem.
I doubt we will get a recording on the Cockpit Voice Recording of the First Officer yelling in terror, "Captain, I am pulling on the disconnect switches, but they are jammed!"
There is strong evidence that the stabilizer was pushing the nose down of both ill-fated planes. At this point, however, we really need to wait for more results from the accident investigation as to the particular hardware fault (The vane sensor? The electronics reading vane position? The flight-control computer? Whether other sensors were also giving bad readings?) and a more complete picture regarding conditions the crew were facing (Did they receive proper training -- part of what we expect from the crew of such a craft is the ability to recover from expected and unexpected fault conditions? Were they overwhelmed by multiple alarms?)
The accusations of criminal complacency, the desire that the executives of Boeing along with the thousands of people working for their company be somehow punished, along with the formal criminal investigation, all of these seem premature until the accident investigators get a better picture.
What if a combination of a reflective roof, improved sealing and insulation of attic ducts, and a higher-efficiency A/C unit is more cost effective than a solar photovoltaic panel?
The reflective roof is more than covering your house in tin -- there are coatings that reflect sunlight with better combined ability to reflect incoming radiation along with emit heat that gets in as infrared. Florida houses typically lack basements, so the A/C ductwork is in the hot attic -- sealing air leaks and insulating the ducts helps a lot. Newer A/C units are much more efficient.
"Uh, why not do both solar electric and A/C efficiency?" Indeed, why not, but all of the resources and press attention is going into the production side over the demand side. Low-hanging fruit, baby!
before the discovery of their recent doings?
Never heard of that species of bird before!
come early to Slashdot?
One more thing:
https://stackoverflow.com/ques...
Setting a reference to null could allow a memory-hungry object to be collected within a local scope.
On the other hand, setting the local reference to null right after calling the dispose() method will set a runtime Null Pointer Reference exception if I erroneously invoke a method using that reference afterward. The reason for a dispose() method, by the way, is to free resources such as file handles, in the absence of an object destructor.
There are all manner of corrections that can come up in a review of even the shortest code snippet, that is, unless you fire a person after their first use of an inefficient but otherwise correct practice.
Thanks, dude, I understand your point about the reference-on-the-stack having its stack frame expunged.
Good thing that I don't work for you. I would be out of a job for something that a simple explanation to teach me something would suffice.
Because in Java (note the comment about garbage collection), all object allocations go on the heap.
OK, OK, there is Escape Analysis where the runtime, if it so optimizes your code, will allocate on the stack an object from which no references "escape" the current context.
Good luck with that being a guarantee.
You might consider sending your resume to Boeing?
What about "CustomerAccountCreate" and "CustomerAccountDisable"? Would this not produce a beneficial grouping of the "CustomerAccount" methods?
Or shouldn't there be a CustomerAccount class so you could simply say
CustomerAccount activeCustomerAccount = new CustomerAccount();
followed by
activeCustomerAccount.dispose(); // frees internal resources prior to garbage collection
activeCustomerAccount = null;
A quick Web search did not turn up "sloppy vector" as a coding style.
I understand how locality of reference can make a big difference in processing speed. But is "sloppy vector" simply a description of attempting to optimize loops scanning through arrays for the vector-architecture supercomputers but doing it in a haphazard way? Or is it a term-of-art that I can read about someplace?
Thanks!
They have top men researching these fossils.
Who?
Top . . . men.
"numerous full lifecycle analyses have concluded lower CO2e for EV vs ICE"
My point exactly. There are those numerous analyses weighing in on the EV being greener than the ICE, and there are other analyses, perhaps less numerous, weighing the other way. To consider the different assumptions in these different analyses == long discussion.
Furthermore, the full life cycle analyses I have seen that favor the EV do not, at this time, favor it overwhelmingly over the ICE. The ICE is also a "moving target" in terms of engine improvements boosting efficiency.
Companies do indeed go bankrupt. There are different modes of bankruptcy, and in what they call Chapter 11, the company stays in business, only holders of stock and perhaps some bonds lose all or part of their investment. When a company runs out of money -- they lack the cash on hand to pay their employees, their suppliers demand immediate payment and/or loans come due -- is often hard to tell from the outside looking in when that is going to happen. A company can get by on the credit terms extended to them and than bam!, one day they cannot.
The Shorts and Haters have been chanting Bankruptcy! Bankruptcy! for the dozen or so years Tesla has been a "public" company, and Mr. Musk joked about it, was it around May 2018? Since then Mr. Musk admitted that the company came close to that happening.
As to the mental health of Mr. Musk, there was the matter of the putative offer to take the company private at $420/share, at a time when it was trading in the mid to upper 300's. As far as anyone can tell, that offer was, in the software parlance, complete vaporware. This kind of stunt is something responsible people in the shareholder-owned-company world don't do, and the SEC did look upon the entire affair with askance. Though I suppose along the lines of ancient Greek philosophical thought experiments about persons who never tell the truth, can we even believe Mr. Musk's admission of how close Tesla came to shutting down when Financing Assured at $420 was all made up?
There has been indeed turnover of top Tesla executives and especially on the finance and accounting side. It is hard to tell if this rate is higher or lower than in situations where the company isn't being scrutinized as much. But again, given the lack of "transparency" of this company, to put it charitably, making inferences based on such things is all we have.
I think the jury is still out on whether Tesla can "scale." One of the supposed failed prophesies of the naysayers, shorts and haters was the claim around early 2018 that Tesla would never get past 1000 cars/week whereas they easily made it to 5000 cars/week with claims they tested their line at 7000. Well, the promises of Tesla "scaling" or "breaking out" or "disrupting" the entire auto industry were based on part on what Elon Musk described as an Alien Dreadnought -- a very highly automated factory capable of achieving high profit margins on a Model 3 selling for $35,000.
From what I hear, the Alien Dreadnought didn't break out, it broke down. Tesla switched to hiring enough shifts to operate Fremont Assembly 24/7, which is a very unusual practice in the cost-conscious auto industry in all segments from basic transportation to premium vehicles. They also gave up (at least for now) on a 35K Model 3 and found a ready market for a 50K+ optioned-up Model 3, although recently they are making price reductions on that.
For Tesla to scale up from their 2018 Q3 and Q4 production that allowed them to squeak by with a slim profit, it appears that hopes of higher production to serve a global market hang on the Shanghai factory. Mr. Musk said as much in a "conference call" to investors, when questioned by a financial analyst about where more cars will be made, he made one of his trademark remarks, "In a place called Shanghai." Well, the Shanghai factory is this expanse of mud right now, and Mr. Musk or other Tesla executives have "guided" that they will have this factory making a substantial number of cars by the end of 2019. Yes, workers in China have been known to work such miracles and the Chinese government has a way of making these happen that they choose to make happen, but where the capital to do this is coming from is really unclear at this point. It isn't coming from the slim profits from the last two quarters.
Do I need to continue? Yeah, Tesla cars catching fire may be overblown, but I have an N=1 of a computer science professor buying himself a Model 3 and passing on the Autopilot feature as something not ready for prime time.
New York-style pizza where the grease hasn't soaked into the cardboard?
What's wrong with Eclipse? OK, OK, it is not yet compatible with OpenJDK 11, but I was able to scrounge up OpenJDK 10?
you ignorant clod!
Remember Madge at the nail salon talking up Palmolive dish detergent?
Madge: You're soaking in it! Salon patron: (jerks hands out of liquid)
The front-end of MATLAB is written in Java. MATLAB is a scripting environment for Java -- you can create instances of Java classes, assign them to MATLAB variables and invoke their methods. Java arrays of numeric types are more-or-less compatible with MATLAB "matrix" variables. I tell people using MATLAB, "Java, you're programming with it!" (person jerks hands away from keyboard)
I suspect that other such programming environments (Maple, Mathematica) may be doing the same thing.
There are all kinds of uses for a modern spreadsheet program, even for an engineer -- producing tables and figures for reports, formulating budgets.
My main use is for quick data visualization. Run a program in Eclipse that generates tab-separated numeric output, paste the numbers into Excel, select columns of data and view the resulting plot. The flexibility of such software saves having to write a GUI for every program that generates engineering data.
I concur with you entirely, but I think there is a snicker-and-giggle factor here for this guying specializing in collecting spreadsheet programs.
John Trimmer self-published the book How to Avoid Huge Ships and every online reference to this rare book is filled with jokes. How do you avoid huge ships? Simple, don't cross their paths, and so on. Trimmer's book, however, was pitched towards the captains or operators of small vessels such as fishing boats and pleasure craft, who indeed give gray hairs to the captains and pilots of tankers and container ships that must traverse the same coastal waters and harbors. Maybe it is like pedestrians and motorists cutting in front of trains, where it doesn't register that a train cannot stop on a dime and neither can one of those huge ships.
The book tries to explain from the perspective of a former harbor pilot why it is not a good idea for a small boat to cut in front of a huge ship, and this explanation is necessary because I lot of small boat operators do just that. I am not able to get ahold of this book so there may be more to it than that -- maybe a small craft can get sucked into the bow wake of a much bigger ship and Captain Trimmer gives instructions on how to stay clear?
This collection of spreadsheet programs is a historical treasure, and spreadsheet software is one of the most used apps on small computers. But spreadsheet software is not kewl and computer users who do stuff with spreadsheets instead of writing custom Perl scripts are not leet, hence all of the jokes and people placing this poor man on the autism spectrum.
Isn't asbestos a kind of "stone wool"? They should at least test this stuff for biological safety.