Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
For the out-of-band Slashdot experience (mostly headlines), follow us on Twitter, or Facebook. ×

Comment: Re:That's nuthin (Score 1) 80 80

100% humidity is where the partial pressure of water vapor in the air is too high for any more water to be suspended in the air. This is when water does not evaporate so sweating ceases to make you any cooler. It does not mean that there is more water around you than air. Water in a liquid state does not count as humidity anyway.

Comment: Re:Boo hoo... (Score 2) 814 814

Abraham Lincoln won the 1860 presidential election, His name was not even on the ballot in 10 states. There were only 33 states at the time so close to 1/3 of the states did not have him on the ballot and he still won. That was the key that started the whole civil war!

And did he get the required electoral collage votes to become president or not? Were the voters deprived the right to vote for Breckinridge, Bell or Douglas through Lincoln being left off the ballot?

Lincoln won fair. The Democrats killed their hope of election themselves by some of their key figures in the south carrying on in an seditious way that could not be endured by much of their voter base, splitting their vote 3 ways. The Republicans had a clear platform of a strong central government and less slavery. Those who voted them in knew what they were voting for and got it./p

Comment: Re:FOI Request ... (Score 1) 136 136

I remember Sydney Morning Herald (not a semi-pornographic supermarket tabloid) published nude full body shots of her on the second page the day after she married Nicolas. Candid pics are nothing compared to what can be achieved with professional lighting and photography.

Comment: Re:What are... (Score 4, Insightful) 273 273

Units are complicated and many people overstate the benefits of having uniform worldwide units. If I'm choosing a unit for how I sell my goods, what's more important, that the person down the street is familiar with the unit, or somebody from Ghana will be familiar if he travels to my store.

In industry, whatever tool or system you're dealing with, you're going to either use something that is either imported or exported or has to be compatible with something that is imported or exported. Thus you are guaranteed that there will be SI units somewhere in your process and it is usually just easier to go with it for the whole process, as is done in the military, NASA, and most US engineering firms. In addition to being internationally compatible, it is also a damn lot easier to use. Sure, if you use no unit but feet, pounds and seconds in your calculation there is no unit conversion that needs to be done, but as soon as you go into the range where you might think in miles or ounces, it becomes fairly difficult to reconcile intuition with units unless you do some fiddly calculations. Whereas a native SI user knows intuitively how long a Km and mm is in the same way an American might recon a mile or an inch.

So you may say: "why don't I buy a 2 pounds of apples, then walk a mile to work where I use SI to design parts and trajectories and what not?" Problem is, if you're thinking in non SI, then non SI units tend to sneak into where they don't belong. The Mars Climate Orbiter for example fell out of the sky because Lockheed used pound-seconds instead of newton-seconds in a calculation.

Considering how much success other countries have had switching, I'm always surprised at America's feeble efforts to do so. I think it is just something to do with Americans natural paranoia about as you say a "New World Order" or whatever else that prevents it.

Comment: Re: It's an advertisement for their PVS Studio pro (Score 2) 72 72

It does make a good case for their product. I look at most of that stuff and think "I have done that" and think how much time has been wasted diagnosing such bugs.

However, what concerns me is the potential noise that is not in the article. I am pretty sure there are a few things that it reports that are actually OK and these things weren't included. Though I admit that I don't know for certain this is the case.

Comment: Re: Problems causing Video effects? (Score 3, Interesting) 72 72

You don't know what you are talking about. Drivers never quite follow the DirectX, OpenGL spec and always have some idiosyncrasies on this card or that to make them generate correct-ish results faster by cutting corners. I find my card getting completely different results to the reference implementation on a monthly basis (sometimes even missing draw calls completely or rendering with the wrong state). I found this particularly true when using DX9 style render states on DX11 class hardware. Neither AMD nor Nvidia will change a driver for you unless you can prove to them that the application is using the spec correctly and the observed results are demonstrably wrong. If you are an independent developer it's even worse since they don't make it easy to contact them.

Comment: Re: Summary is rather misleading (Score 1) 193 193

A lot of game programmers will drop down to assembly to do some things as fast as possible.

I only use inline assembly for atomic operations myself. For inner loops, I write them in C++ and check the disassembly to confirm that the compiler did roughly what I had in mind.

Neither cache affinity nor intrinsics are as bad as you are thinking. With cache, you just arrange your data in the order it is used and generally cache will be good to you, you don't need to know the exact stride most of the time. Intrinsics mostly have an equivalent between platforms, SSE registers are 128 bits long for a reason, so it can operate on a whole row or column of a 4x4 matrix, other platforms will be based on the same requirement. If not, just use floats. Alignment is fairly consistent too, loading from register with length X should be done be done on X bit boundary. Otherwise, how would you get so many cross platform games?

Comment: Re:Poor summary (Score 1) 113 113

Perhaps if you'd get over the idea that what's the most important to you is not what's the most important to others, you might consider that they may have left the best for last to get you to read the whole summary?

I played every single Doom, including the level packs, but only played Fallout 3, without the expansions and not even New Vegas.

That said, objectively, Fallout 4 is much more interesting than whatever it is that they are branding as "Doom". Fallout seems to be heading in a good direction, that makes people excited. Doom needs to prove itself again.

Comment: Re:China, the yellow scourge (Score 1) 86 86

Uber has virtually no presence in China, it is being eaten alive by local competitor "Didi" who uses almost the exact same business model, but is actually able to find customers and drivers.

Uber is like "China is a big market, we must go there", but in reality, they have no idea of the realities of doing business here. They will drop huge amounts of money on advertising which will be seen by no one because they don't know how to get the word out here. Nobody in China knows Uber, nobody talks about Uber, but because they're getting scammed so hard, it looks like they are getting lots of leads.

Why are they getting gamed so hard? Because they are naive suburban whites like you who are not expecting any of this. China is not Kansas. In Kansas, Chinese restaurants all have a buffet with reasonable food for a reasonable price, but go to China and the few buffets you see are expensive and poor quality, why? Because many if not most Chinese won't eat for a day before going to the buffet and will gorge themselves silly on whatever looks expensive (crab etc.) whether or not it tastes any good. In China, if you release anything, an online services platform, an MMO, anything and you have to watch out how you are being gamed every day. You think you can give something for free online and you will find people creating thousands of accounts to harvest it. You even have to watch out for this giving virtual goods in MMOs, when giving real rides for real money you have to watch out.

The world is full of different people. The Chinese just do this because it is normal to them, they think if there is a service that you don't take advantage of fully that you are being ripped off. Didi understands it, Uber doesn't.

Comment: Re:Obviously (Score 5, Insightful) 265 265

You don't really have to have much knowledge about anything to second guess experts in any field. Just hold to the rule that "all amazing results are caused by inaccurate measurement, poor sampling, cognitive leaps or coincidence" and you'll be right 70% of the time.

The actual breakthroughs will be so old hat by the time they have been tested properly that nobody will talk about them and you'll never eat crow.

Remember, cynicism and wisdom lead to the same result most of the time, only wisdom is so much harder to learn.

Comment: Re:"Kaspersky's relationship with the Kremlin" (Score 1) 288 288

I currently am a systems engineer working specifically on email systems design.

And this makes you an authority about Weapons of Mass Destruction how? Even if you were doing email systems design for DuPont or the military, you'd have no authority to cite.

Also, if you were any good as a "systems engineer" they wouldn't have you working on email, that's a lower rung than even web backends. Whoever was responsible for cooking up Saddam's nasties in the 80s wouldn't even hire guys of your caliber as a floor manager, let alone as an engineer.

Comment: Re: You're dying off (Score 1) 287 287

Young men would buy expensive custom sound/entertainment systems for mediocre cars when I was a lad, but they would stop well before 30. This was not a generational thing then and it isn't one now.

Young people (under 25) as a rule feel they should be provided quality entertainment while driving. Less young people (over 25) don't. I for instance have a 6 stack CD player full of shitty Chinese pop songs that I don't particularly like, but really I don't care.

Comment: Re: sampling bias (Score 1) 405 405

Well, Aristophanes quoting Socrates is not so much different to Plato quoting Socrates, which is where his canonical quotes come from.

Aristophanes himself was an expert on cantankerous old people, as evinced by reading "The Wasps", an insightful critique of the classical period / Iron Age problems of increased life expectancy based on better diet and sanitation coupled with a marked decrease in violence compared to the Bronze Age leading to people living well past 40 and causing trouble for the young.

The allegory he tells, of Procleon, an old man addicted to voting and public participation to the detriment of the state rings true today, especially in countries without mandatory voting and too many elections for a working man to attend (the U.S.).

One also should consider that when Aristopanes was born, Rome was still a little discussed village in the middle of nowhere, so as far as knowing about old men, he would have you all bested.

Comment: Re: sampling bias (Score 2) 405 405

They seem to feel "owed" by society a job, and to be treated nicely and fairly.

I'll tell you some personal anecdotes if I may. I'm right on the old end of the so called "Millenial" generation, I graduated from university in 2006. 6 months after getting my first job, the U.S. economy went to shit and the American customer for the project I was working on cancelled the project and my contract was not renewed. 8 months after getting my second job, another round of layoffs hit (based on declining U.S. sales, a failed Nasdaq IPO and the national government cancelling subsidies), with some exceptions in a last in first out pattern, until finally after a year and a half, I was the new guy again and I was actively encouraged to apply for other jobs. I tried a foreign country after that, but the company I worked for folded after 10 months.

To my knowledge I am not a pariah and for what it's worth I am well appreciated by my current employer, I would assume this is more or less typical of those who entered the workforce with me and were laid off along side me. Compared to even Generation X, who got started during the prosperous 90s and were able to keep their first jobs for long enough to make them meaningful, or the Baby Boomers who often went through their whole careers with a single employer, it is really hard to picture those who entered the workforce along side me considering having a job as anything less than an elusive state that can only be retained through long hours, office politics and luck.

Mirrors should reflect a little before throwing back images. -- Jean Cocteau

Working...