Slashdot is powered by your submissions, so send in your scoop

 



Forgot your password?
typodupeerror
×

Comment Re: Amateur science is blocked by journals (Score 1) 189

You may have more access than you think. Many universities offer access to their library systems to members of the local community for a nominal fee.

Or perhaps less than you think.

At my local university, they tied all the computer services to one login system. So, getting a library card only allows you to borrow books. All computer resources can only be accessed by logging in with the student account and if you are not a student, you can't access it.

Most universities don't bother with physical copies of journals anymore.

Comment Re:That's Great (Score 1) 107

cat, just because we dont have a large manned space program does not mean we dont have a space program. I would say that we have found out more about space and moons and planets and stars in the previous 10 years than at any time in the past. Sure it is not as flashy as sending an astronaut to the moon or mars, which I am in agreement with you that we need to be working harder on our manned missions, but to say our space program is dead is just simply wrong

I hope this is not one of those five year technologies.

Slashdot is full of stories about this new technology and that new technology that will be ready in five years. These then just vanish after the story first appears.

After the story is published and we comment, it is forgotten and nobody is held accountable for publishing bullshit.

Maybe someone should do a review of stories published 5 years ago of new technologies that have never materialized. I remember five years ago there used to be so many stories of new storage technologies about storing in DNA, some crystal lattices. nano-structures and so on.

Comment Re:Well, it is from the bring-your-D+-game dept. (Score 1) 397

14 errors in font-awesome.css, over 50 errors in application.css, "Expected media feature name but found 'touch-enabled'" I don't even know what that means, but it came up a dozen times, downloadable font format unrecognized, another 50 errors in providers.css...

That sideways scrolling thing makes me queasy.

There has got to be a zillion better ways to do it than that.

When Netflix has the data mining contest, I thought they were such a cool company. Now they look like a stagnant company.

Comment Re:China has those problems too ! (Score 1) 90

There are lots of other minor issues - bureaucracy, risk aversion, aging workforce.

I may be an American citizen but I came from China. I still keep track of what's going on inside China.

From what I know, all the problems that you've outlined above China also got them.

Bureaucracy You just couldn't imagine how bureaucratic the Chinese system is

Risk Aversion Do you know why China's space program schedule is limited to one-spaceship every year ?

You guess it, risk aversion

Aging workforce All the leading scientists in Chinese space programs are in their 60's, and older. That is because China practically lost an entire generation of scientist due to the social upheaval during the 1950's to the 1970's.

Yes, a new generation of young scientists are growing up, but they are still seriously lacking in practical experiences.

If you want to find fault in something, you'll always find something. If you want to find positives in something, you'll also always find something. All your post says is that you really wanted to believe that there are problems with the Chinese scientific institutions for whatever your own reasons*.

Just let it go. Enjoy the achievement and whatever comes off it. We're all a little better off, however little from the success.

Unless you have done extensive statistical analysis of the Chinese scientific institutions and community and claim to be one of the leading researchers in such a field, then my apologies and I acknowledge that I am getting the best opinion there can be on this topic.

Comment Re:Makes Sense (Score 4, Interesting) 377

Just like most mutations are unsuccessful, most creative ideas are not "welfare increasing", after all, the status quo came about for a reason and your idea has to be pretty clever to beat it in all, or even most, metrics.

Of course, on the off chance a creative idea *is* successful, we're all for it, but that's pretty hard to determine in advance. And more importantly, after the fact, all the discomfort from change (and one shouldn't underestimate how much change hurts psychologically) has already been paid for, so we can simply enjoy the benefits.

The status quo doesn't have to come about because it is the best solution to a problem. There are many times when status quo can appear because it was first to the market, or because it was pushed by the giant gorilla of the market etc. Just look at web standards and internet and there are so many status quo ideas that are established not because they are the best but for a variety of different reasons.

Gene mutations are random whereas creative ideas are directed. Perhaps gene mutations would be comparable to random thoughts in people's heads. Creative ideas are more refined than that.

I agree that its hard to determine which creative idea is going to be successful and maybe even successful for completely different reasons. I admit than when Twitter first came out, I thought it was a dumb idea. But, there lies the problem. Out society of innovation is based on creative ideas and there are no ways of determining which ideas are great and which are not. As the article suggests, the only way to make your idea take effect is through extreme perseverance and mountains of rejection. I remember reading that JK Rowling had her Harry Potter manuscript rejected over a dozen times.

If there is an inherent psychological bias against new ideas, then maybe the psychologists should create a procedure in which we can develop new ideas without having the creative idea having to face rejections.

Comment Re:No, they don't work (Score 1) 670

Once people become obese though getting enough exercise to burn any serious calories can be very difficult. They can't walk to the store to do their shopping or spend 20min on the elliptical at home because they'd be exhausted after five. Yet they have all these fat cells their body now thinks it needs to maintain screaming eat constantly.

This is something that I've found very strange.

Why do people come up with strange beliefs? Fat cells screaming to eat! Maybe a good analogy but is it really true?

If someone challenges them, then they hit Google and find some article and reaffirm their beliefs.

My weight touched that obese BMI of 30 but managed to get my BMI down to the low 20s by losing over 50lbs. In my case, I find that my weight problem was due to some very strange beliefs I had been keeping and so questioning these beliefs and experimenting out of them was what worked. Everyone has different reasons for the weight problem but for me that was the problem.

When I wanted to lose weight, I would cut out fat and meat and go vegetarian. I would eat lots of rice, cereal and bread instead.I would buy lots of fruits and eat glasses after glasses of apple and banana smoothies all day. Add to that, I would try to exercise and make it a point to use the elliptical machine for 30 minutes every day. I would lose weight but it would come back if there was a deadline or some stressful event.

My point is that maybe we should be experimental and not dogmatic when it comes to weight loss. Try different things and keep experimenting until you find something that puts in normal weight that you are able to maintain. Question beliefs because there might be that one belief that you use everyday to make food choices that over months and years is causing your weight problems.

Comment Re:It's a doomed race against time (Score 1) 370

Making high-quality music used to require investment. Expensive instruments at a minimum - but if you didn't want to sound like Kenny, you'd also need high quality microphones, sound damped recording studio, mixing desk, specialist technician to operate it and several high-end recorders capable of syncronised operation.

That's all changed now. One person working on consumer, affordable equipment can - on a purely technical level - match that quality with comparative ease. It's down to the level where people can and do make music as a hobby, without any expectation of payment.

Only in select genres. A lot of music produced right now is just computer created and so quality is easily matched.

Try matching drums, guitar sounds, acoustic instruments or vocals with consumer grade equipment. The quality of the instruments, room, microphones and the skills of the engineer play a huge part in the quality.

Comment Re:Everybody gets this far. Then it gets hard. (Score 1) 140

You wouldn't need to record light timings. Upon yellow light, determine if safe stop is possible based on distance to light and current speed. If yes, then do so.

There will always be a grey area in the decision between if it is safe to stop or not.

Whatever the condition to determine if it is safe or not, there will always be situations when it will be close the decision boundary.

Out of the millions stop light encounters, there will be thousands where the decision on either side could be taken depending on the variability of measurements. Two cars taking two different decisions because of minute variations in their sensor measurements could result in a crash.

If you take the light timings out, you increase the margin to probably unacceptable high levels.

Comment Re:Everybody gets this far. Then it gets hard. (Score 1) 140

Freeway driving is trivial: you don't hit what's in front of you, you don't hit what's beside you. Basic sensors can pull off both of these feats. You get bonus points if you can stay in a lane, but plenty of shitty human drivers manage to pull it off following those two basic rules.

Getting off the freeway is where it starts getting difficult. Even google maps sometimes misses the exit and tells me to turn right while I'm doing 60 over an overpass.

Freeway travel everywhere is pretty much the same.

On local streets, there are quirks.

However, this problem can also be solved by doing a Google street view style of predetermined intentions of how the roads were designed instead of computing them on the fly.

The traffic signals are also not standardized. The yellow in a 45mph road going downhill is shorter than the yellow at a 20mph road. Also, this behavior changes with time of day in some lights. So, when the light turns yellow, the car has to make a decision to keep going or brake for a stop.

So, here also the entire traffic light timings need to be recorded and stored to make right decisions.

Construction again changes things. But, they are easiest because they can be easily standardized.

Snow in Michigan changes things but I guess if you can automate the snow plows also, then it will make things easier for self-driving cars since the snow is plowed in some pre-defined method.

When a majority of the cars are self-driving, then the problem will be simpler. It is the phase when a few cars are self-driving and most are human drivers, then it becomes tricky.

But hopefully in the next decade, all the cars will be self-driving.

Perhaps all cars will be rentals in the future. You can have a car pick you up and drop you off and then go somewhere else. This will make car sizes smaller because people will not have to buy cars with the worst case use in mind. I see huge trucks with just a single driver on the freeway all the time. People will rent cars depending on passengers and how much stuff they have to move.

Comment Re:Is this really a _good_ idea? (Score 1) 177

This is not to say that it'll be hard to stop the proliferation of military robots, but - is this really a good idea?

Sure, us Westerners, we can say how good a thing this may be - on the other hand, Gaddafi had some problems after a while with his troops seeing the misery they were spreading. To some extent, the same is true for Assad's Syria..

Can you picture what would happen, if rulers like those got their hands on military robots that will just unquestioningly mow down their own people, if the people don't like their "esteemed" ruler any more?

Or - picture them in the hands of North Korea...

Once they get deployed in one nation, no matter how well "behaved" that one nation will be, they will appear in other places - under less enlightened "leadership".

Why do people even try to predict the future of military strategies and technology? When we went to the gulf war, we had a vastly different set of technology and strategy than when we left. Afghanistan is so much about drones now but we didn't even use drones when the war in Afghanistan started.

The exact opposite of what you predict could happen. Robots in the hands of civilians could render military actions ineffective because civilians will always be able to deploy more and gain understanding of movements of small groups of men. So, civilians would have more knowledge and information and avoid military offenses. China could manufacture controllers and parts for super cheap and so people could put together batteries, cameras, controllers, communications for civilian robots very easily.

My point is anything could happen. Unless you are from the future, this kind of talk is bogus. If you read 10 year old slashdot articles, you will see almost painful amount of bad predictions.

Comment Re:Dying Company Grasping at Straws (Score 1) 167

Sad Really, Sears used to stand for something and unfortunately bad management and ineffective reaction to the marketplace has left them in the position of closing for good. I stopped shopping there permanently after a problem with an appliance, that had the service package and was still under warranty, wouldn't be serviced by them for weeks. They just couldn't get us an appointment. Much of what they sell you can get online from other vendors with better service and for better prices and that unfortunately will be the undoing of a lot of these chains so for me good riddance!

The only alternative for appliances are now Home Depot, Lowes or Best Buy. I doubt they are much better. There is no way any company is going to come running out to fix your appliance for a free warranty claim.

Sears has as good a price or better as Amazon on many products. Nothing beats placing the order and picking it up 20 minutes later at a local Sears or Kmart.

Amazon has gone heavily into data center business as well. It makes as much sense for Sears to do the same. Sears can attract the small local businesses who want IT services like mail, storage and custom apps without paying for an in-house IT and a local venue to go to if there is something wrong or if they want custom services.

Comment Re:And people called Atlas Shrugged Fiction.... (Score 2) 702

It is not the philosophy but the implementation.

The implementation of communism has never worked.

Working for China right now

There are many places as well where capitalism has failed miserably and resulted in anarchy as well.

Please, give an example or two.

Spectacular failures are Somalia, Hailti and many African countries. Slow failures: Shah era Iran, India and the third world.

The recent success of China would say communism can work though their approach is to use a combination of free market and state ownership not for a political fantasy philosophy but economic metrics.

They don't do communism any more.

If China doesn't do communism anymore, then we don't do capitalism anymore.

Even if the Chinese implement more free market policies and we let our government grow bigger and reach the same portion of government size, we will call ourselves capitalists and China communists.

Rhetoric doesn't match reality. Film at 11. I have this vague suspicion that what you consider "capitalist" societies won't end up being such.

We now call it socialism and remark at how awesome Sweden, Norway, Canada are. Even we don't want to be capitalists. Capitalists will let someone die because they don't have good enough health insurance and capitalism creates 1%ers and 99%ers.

Comment Re:And people called Atlas Shrugged Fiction.... (Score 1) 702

What's funny is the ones who say communism is a good idea that just hasn't been done right never really pay attention to the times it has been done exactly according to plan and still failed anyways.

I like to cite the example of the Icarians in Nauvoo, IL. They had a whole town - facilities and all - literally just handed to them free and clear, and even got to cherry pick who would live there in their commune (picking only those who had a known good work ethic) and had a democratic policy making process. Things were going ok at first, but over time their productivity was on a steady decline. It soon got to the point where workers had to be forced to work harder (policies like no talking while on the job were enacted) and the once idealistic leaders became douches hell bent on seeing their commune succeed at any cost. In the end, people just got miserable and went their separate ways. Had it continued longer and that option not been available, an autocracy would have to have taken over to force people to go to work whether they liked it or not. This is what later happened in Russia, Korea, Vietnam, China, and others when communism was tried on a national scale.

In the early days, Russia even had a system in place where they even wanted to get rid of laws and codes and remove lawyers from trials...it failed miserably as without laws, going "against the betterment of the people" was so selectively enforced, so they discovered the hard way why rules are critical.

Ho Chi Minh in Vietnam originally wanted democracy, even having read the US declaration of independence and parts of the constitution in front of his followers as if that were ideal, only with communism for their economy. That too failed, requiring them to resort to indoctrination camps and effective slavery.

Capitalism sort of happens own (even currency does - in the absence of one, people tend to create one on their own - after the fall of the soviet union, Russian denizens replaced the ruble with cigarettes and vodka as their currency until a new official one came about.) Communism, however, requires force to implement. That fact alone should tell you why communism will never work, and this "not exactly communism" that Venezuela is doing is likely to result in the same (indeed, they are sending the owners of these electronics shops to jail.)

It is not the philosophy but the implementation.

There are many places as well where capitalism has failed miserably and resulted in anarchy as well.

Plus, as anyone would say, what we call capitalism has an enormous government sector and our government spending is about 40% of the GDP.

There great failures in government have been when there have been enormous failures of communication and policies were not adjusted to reflect reality but pushed on by fantasy.

The recent success of China would say communism can work though their approach is to use a combination of free market and state ownership not for a political fantasy philosophy but economic metrics. Of course, Chinese economic metrics are always suspect and if they become super inaccurate they could also be in the way of fantasy.

Even if the Chinese implement more free market policies and we let our government grow bigger and reach the same portion of government size, we will call ourselves capitalists and China communists.

Comment Re:calories (Score 1) 440

Summary notes that he lose weight at 2400 kcal/day, which is relatively high. This is not surprising: fat storage or burning is controlled by insulin, which is controlled in healthy subjects by blood glucose level. If the food does not rise blood glucose level (either because it is low carb, or because it contains carbs that take time to digest), insulin remains low, and fat is burnt.

If the food doesn't raise blood glucose levels that means the calories get come from places other than simple carbohydrates, and those calories get broken down into what the body needs, and if there's extra it gets stored as fat.

On what evidence do you base your claim that the same number of calories per day will make you thinner if they come from a source that doesn't raise blood glucose?

Diabetic patients are told to eat low carb diets. Even people who have been fat all their life start following a strict low carb diet, they become thin.

There was a discussion regarding some experiments on this. One doctor had diabetic patients that were getting too thin, "wasting away" as they said and wanted to put some meat on the bones. The doctors prescribed drinking olive oil shots. The patients didn't gain any weight. So, he doubled the amount of olive oil to be drunk like medicine. Still no weight gain. He doubled it again. Nothing again. At the end, patients were consuming over 2000 calories in olive oil shots and not gaining any weight (this in addition to their strict low carb diet for diabetes).

The whole "insulin" as the fat hormone I think was popularized by the book "Good calories, bad calories" by Taubes. There is no scientific consensus about insulin though. Taubes does cite a lot of work on his book and one of the most dramatic is the topical fat bulbs at the site of insulin injections.

Low-carb seems to be the best of all the weight loss diets when examined experimentally. There are a plethora of theories regarding why low-carb seems to be the best. Since low-carb diets were popularized by the diabetes doctor Atkins, there has been a strong suspicion that it is through insulin.

Comment Re:Alibaba vs Amazon (Score 1) 120

While this isn't a huge deal for Amazon right now, the Chinese products have now been getting better and better and there are some products that are so unique and useful than anything available in the US. The Chinese are able to offer super-low price, uniquely designed and useful products especially for the specialized needs - like specialty tools and electronics.

Any examples of these unique products?

One area from the top of my head: bicycling. Multi-thousand lumen LED headlamps with LiIon battery packs, countless LED and laser lights for bikes, bike computers and gadgets, clothing for riding bikes including reflector straps and wearable LED lights and so on.

Slashdot Top Deals

The only possible interpretation of any research whatever in the `social sciences' is: some do, some don't. -- Ernest Rutherford

Working...