gbrumfiel writes "Africa has some of the poorest soil of anywhere on the earth, and over farming is only making matters worse. As the population grows, governments and NGOs must decide whether to subsidize chemical fertilizers like those used in the west or promote more sustainable agricultural practices. In Malawi, the government has decided to subsidize fertilizers, with impressive results. Corn yields have tripled since the subsidies were introduced. More sustainable practices, such as fertilizer trees can't deliver those kind of results in just a few years. The question is simple: does Africa follow the same, unsustainable road as the rest of the world? Or do they become a testing ground for potentially game-changing new techniques? OR is there a third path? Discuss."

mtaht writes "Has anyone, besides those that worked on byte queue limits, and sfqred, had a chance to benchmark networking using these tools on the Linux 3.3 kernel in the real world? A dent, at least theoretically, seems to be have made in bufferbloat, and now that the new kernel and new iproute2 are out, should be easy to apply in general (e.g. server/desktop) situations." Dear readers: Have any of you had problems with bufferbloat that were alleviated by the new kernel version?

You've probably noticed that Slashdot's been running some video lately. There are a lot of interesting people and projects in the world we'd like to present in video form, but some of them are too far away for the corporate overlords to sponsor travel to shoot footage in person. (Another reason my dream of parachuting to McMurdo Station will probably never manifest.) We've been playing around with several things on both the software and hardware side, but in truth, all of them have some flaws — whether it's flaky sound (my experience with the otherwise pleasing RecordMyDesktop on Linux), sometimes garbled picture (Skype, even on seemingly fast network connections), or video quality in general. (Google Hangouts hasn't looked as good as Skype, for instance. And of the webcams built into any of the laptops we've tried, only Apple's were much worth looking at. Logitech's HD webcams seem to be a decent bargain for their quality.) We've got a motley bunch of Linux, OS X, and Windows systems, and can only control what's on our side of the connection: interviewees may have anything from a low-end laptop with a built-in webcam to elaborate conferencing tools — which means the more universal the tools, the better. (There may not be any free, open source, high-quality, cross-platform video conferencing tools with built-in capture and a great UI, but the closer we can get, the better.) With all that in mind, what tools and workflow would you suggest for capturing internet conversations (with video and sound), and why? Approaches that minimize annoyance to the person on the other end of the connection (like the annoyance of signing up for an obscure conferencing system) are especially valuable. We'd like to hear both sides, so please chime in if you've had especially good or bad experiences with capturing remote video like this.

rbowen writes "Nine years ago, Slashdot readers discussed what makes an Open Source project successful. The answers were varied, of course. An academic paper summarized the results, agreeing (albeit with more precision) that motivations for Open Source projects are varied. Has anything changed since then? In the era of mobile apps, social media, and Google Ad revenue, have the definitions of Open Source project success changed at all? Have your reasons changed for being involved in Open Source?"

Lexta writes "So I'm contemplating my next smartphone purchase, and I've been a little put off by all of the security exploits posted on Slashdot over the last few months, particularly for Android. So, what's the most secure stock standard (not jailbroken) mobile OS?"

New submitter multimediavt writes "Ok, here's my problem. I have a lot of personal data! (And, no, it's not pr0n, warez, or anything the MPAA or RIAA would be concerned about.) I am realizing that I need to keep at least one spare drive the same size as my largest drive around in case of failure, or the need to reformat a drive due to corrupt file system issues. In my particular case I have a few external drives ranging in size from 200 GB to 2 TB (none with any more than 15 available), and the 2 TB drive is giving me fits at the moment so I need to move the data off and reformat the drive to see if it's just a file system issue or a component issue. I don't have 1.6 TB of free space anywhere and came to the above realization that an empty spare drive the size of my largest drive was needed. If I had a RAID I would have the same needs should a drive fail for some reason and the file system needed rebuilding. I am hitting a wall, and I am guessing that I am not the only one reaching this conclusion. This is my personal data and it is starting to become unbelievably unruly to deal with as far as data integrity and security are concerned. This problem is only going to get worse, and I'm sorry 'The Cloud' is not an acceptable nor practical solution. Tape for an individual as a backup mechanism is economically not feasible. Blu-ray Disc only holds 50 GB at best case and takes forever to backup any large amount of data, along with a great deal of human intervention in the process. So, as an individual with a large data collection and not a large budget, what do you see as options for now (other than keeping a spare blank drive around), and what do you see down the road that might help us deal with issues like this?"

Bananatree3 writes "While we have sci-fi visions of room temperature superconductors like in the movie Avatar, the question still remains: How would the discovery of a such a material impact our everyday lives? How would the nature of warfare change? How would the global economy react? What are the cultural pros and cons of such a technological shift?" And just as important, in what contexts would you want to see it first employed?

ananyo writes "Laser beams at the National Ignition Facility have fired a record 1.875 megajoule shot into its target chamber, surpassing their design specification. The achievement is a milepost on the way to ignition — the 'break-even' point at which the facility will finally be able to release more energy than goes into the laser shot by imploding a target pellet of hydrogen isotopes. NIF's managers think the end of their two-year campaign for break-even energy is in sight and say they should achieve ignition before the end of 2012. However, with scientists at NIF saying that a $4 billion pilot plant could be putting hundreds of megawatts into the grid by the early 2020s, some question whether the Department of Energy is backing the wrong horse with ITER — a $21-billion international fusion experiment under construction at St-Paul-lez-Durance, France. Is it time for the DoE to switch priorities and back NIF's proposals?" Perhaps a better idea, given the potential benefits of fusion research, would be for the DoE to throw their weight behind multiple projects, rather than sacrificing some to support others.

New submitter unimacs writes "So Apple has been under fire recently for the conditions at the factories of their Chinese suppliers. I listened to 'This American Life's' recent retraction of the Michael Daisey piece they did a while back. Great radio for those of you who haven't heard it — rarely has dead air been used to such effect. Anyway, while his work has been discredited, Michael Daisey wasn't inaccurate in his claims that working conditions are poor in iPhone and iPad factories. Given that, are there any smart phone manufacturers whose phones are made under better conditions?"

ichard writes "In a couple of months I'm going to start working from home full-time. I've been thinking about the obvious things like workspace ergonomics, but I'm sure there are more subtle considerations involved in a zero-minute commute. What are other Slashdot readers' experiences and recommendations for working from home? How do you stay focused and motivated?"

An anonymous reader writes "Contrary to what many individuals think, not everybody on Slashdot went to college for a computer-related degree. Graduating in May of this year, my undergraduate degree will be in psychology. Like many undergraduate psychology students, I applied to a multitude of graduate programs but, unfortunately, was not given admission into a single one. Many are aware that a bachelor's degree in psychology is quite limiting, so I undoubtedly have been forced into a complicated situation. Despite my degree being in psychology, I have an immense interest in computers and the typical 'hard science' fields. How can one with a degree that is not related to computers acquire a job that is centered around computers? At the moment, I am self-taught and can easily keep up in a conversation of computer science majors. I also do a decent amount of programming in C, Perl, and Python and have contributed to small open source projects. Would Slashdot users recommend receiving a formal computer science education (only about two years, since the nonsensical general education requirements are already completed) before attempting to get such a job? Anybody else in a similar situation?"

jm223 writes "I'm currently a student at a major university, where I do IT work for a fairly large student group. Most of my job involves programming, and so far everyone has been happy with my work. Since we're students, though, no one really has the experience to offer major advice or critiques, and I'm curious about how my coding measures up — and, of course, how I can make it better. CS professors can offer feedback about class projects, but my schoolwork often bears little resemblance to my other work. So, when you're programming without an experienced manager above you, how do you go about improving?"

Dmitri Baughman writes "I'm the IT guy at a small software development company of about 100 employees. Everyone is technically inclined, with disciplines in development, QA, and PM areas. As part of a monthly knowledge-sharing meeting, I've been asked to give a 30-minute presentation about our computing and networking infrastructure. I manage a pretty typical environment, so I'm not sure how to present the information in a fun and engaging way. I think network diagrams and bandwidth usage charts would make anyone's eyes glaze over! Any ideas for holding everyone's interest?"

New submitter Manzanita writes "The domain of personal analytics, or 'Quantified Self,' is rich with interesting things to measure and many hackers have started projects. But they will only take off if it is sufficiently easy to gather and use the data. Stephen Wolfram has collected and analyzed a lot of his personal data over the last 20 years, but that is far beyond what most of us have the time for. What do you find worth tracking? What is ripe for developing into a business?"

New submitter derchris writes "We will be on vacation in the U.S. next month for about 3 weeks. We are going to do a road trip between San Francisco, Las Vegas and Los Angeles. To not use roaming for data, and get a heart attack once back home looking at the mobile bill, I was looking at so called 'MiFi' devices, portable 3G Wi-Fi hotspots. As far as I know, more or less all of the U.S. carriers have such devices available. But as I'm not from the U.S., I have no idea what would give me the best 3G coverage in the areas we are travelling. Another question would be whether I can buy one of these devices off eBay, and use it with any SIM card. Let's hope there are users available who could give some advice on this topic."