Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror
Books

Book Review: Build Your Own Website: A Comic Guide to HTML, CSS, and WordPress 1

Posted by samzenpus
from the read-all-about-it dept.
MassDosage writes "At the the risk of exposing my age I remember building my first website using a rudimentary Unix text editor (Joe) and carefully handcrafting the Hypertext Markup Language (HTML) while directly logged on to the web server it was being served from. Back then Cascading Style Sheets (CSS) weren't even a glint in the eyes of their creators. A lot has changed and there's now a world of fancy WYSIWYG web page editors to choose from as well as Content Management Systems that allow you to create websites without looking at the underlying code at all. While this is all very useful and allows less technical people to create websites I still feel that having at least some knowledge of how everything works under the hood is empowering — especially in situations where you want to go beyond the limits placed on you by a certain tool. This is where Build Your Own Website: A comic guide to HTML, CSS and Wordpress comes into the picture. Its aim is to enable people new to web development to learn the subject by teaching the fundamentals of HTML and CSS first and only then describing how to use a Content Management System (CMS) — in this case Wordpress. While Wordpress might not be everyone's kettle of fish it's a good choice as an example of a modern CMS that is easily accessible and very popular. The concepts presented are simple enough that it should be easy enough for a reader to apply them to a different CMS should they want to. Read below for The rest of MassDosage's review.
AI

Research Highlights How AI Sees and How It Knows What It's Looking At 36

Posted by samzenpus
from the what-am-I-looking-at-here dept.
anguyen8 writes Deep neural networks (DNNs) trained with Deep Learning have recently produced mind-blowing results in a variety of pattern-recognition tasks, most notably speech recognition, language translation, and recognizing objects in images, where they now perform at near-human levels. But do they see the same way we do? Nope. Researchers recently found that it is easy to produce images that are completely unrecognizable to humans, but that DNNs classify with near-certainty as everyday objects. For example, DNNs look at TV static and declare with 99.99% confidence it is a school bus. An evolutionary algorithm produced the synthetic images by generating pictures and selecting for those that a DNN believed to be an object (i.e. "survival of the school-bus-iest"). The resulting computer-generated images look like modern, abstract art. The pictures also help reveal what DNNs learn to care about when recognizing objects (e.g. a school bus is alternating yellow and black lines, but does not need to have a windshield or wheels), shedding light into the inner workings of these DNN black boxes.
Android

Manufacturer's Backdoor Found On Popular Chinese Android Smartphone 32

Posted by samzenpus
from the sneaking-in dept.
Trailrunner7 writes that researchers at Palo Alto Networks have found a backdoor in Android devices sold by Coolpad. "A popular Android smartphone sold primarily in China and Taiwan but also available worldwide, contains a backdoor from the manufacturer that is being used to push pop-up advertisements and install apps without users' consent. The Coolpad devices, however, are ripe for much more malicious abuse, researchers at Palo Alto Networks said today, especially after the discovery of a vulnerability in the backend management interface that exposed the backdoor's control system. Ryan Olson, intelligence director at Palo Alto, said the CoolReaper backdoor not only connects to a number of command and control servers, but is also capable of downloading, installing and activating any Android application without the user's permission. It also sends phony over-the-air updates to devices that instead install applications without notifying the user. The backdoor can also be used to dial phone numbers, send SMS and MMS messages, and upload device and usage information to Coolpad."
Open Source

What Will Microsoft's "Embrace" of Open Source Actually Achieve? 79

Posted by samzenpus
from the keeping-them-closer dept.
Nerval's Lobster writes Back in the day, Microsoft viewed open source and Linux as a threat and did its best to retaliate with FUD and patent threats. And then a funny thing happened: Whether in the name of pragmatism or simply marketing, Microsoft began a very public transition from a company of open-source haters (at least in top management) to one that's embraced some aspects of open-source computing. Last month, the company blogged that .NET Core will become open-source, adding to its previously open-sourced ASP.NET MVC, Web API, and Web Pages (Razor). There's no doubt that, at least in some respects, Microsoft wants to make a big show of being more open and supportive of interoperability. The company's even gotten involved with the .NET Foundation, an independent organization designed to assist developers with the growing collection of open-source technologies for .NET. But there's only so far Microsoft will go into the realm of open source—whereas once upon a time, the company tried to wreck the movement, now it faces the very real danger of its whole revenue model being undermined by free software. But what's Microsoft's end-goal with open source? What can the company possibly hope to accomplish, given a widespread perception that such a move on its part is the product of either fear, cynicism, or both?
Cloud

The Joys and Hype of Hadoop 31

Posted by samzenpus
from the ups-and-downs dept.
theodp writes "Investors have poured over $2 billion into businesses built on Hadoop," writes the WSJ's Elizabeth Dwoskin, "including Hortonworks Inc., which went public last week, its rivals Cloudera Inc. and MapR Technologies, and a growing list of tiny startups. Yet companies that have tried to use Hadoop have met with frustration." Dwoskin adds that Hadoop vendors are responding with improvements and additions, but for now, "It can take a lot of work to combine data stored in legacy repositories with the data that's stored in Hadoop. And while Hadoop can be much faster than traditional databases for some purposes, it often isn't fast enough to respond to queries immediately or to work on incoming information in real time. Satisfying requirements for data security and governance also poses a challenge."
News

In Breakthrough, US and Cuba To Resume Diplomatic Relations 225

Posted by Soulskill
from the pretending-we-like-each-other dept.
HughPickens.com writes: Peter Baker reports at the NYT that in a deal negotiated during 18 months of secret talks hosted largely by Canada and encouraged by Pope Francis, the United States will restore full diplomatic relations with Cuba and open an embassy in Havana for the first time in more than a half-century. In addition, the United States will ease restrictions on remittances, travel and banking relations, and Cuba will release 53 Cuban prisoners identified as political prisoners by the United States government. Although the decades-old American embargo on Cuba will remain in place for now, the administration signaled that it would welcome a move by Congress to ease or lift it should lawmakers choose to. "We cannot keep doing the same thing and expect a different result. It does not serve America's interests, or the Cuban people, to try to push Cuba toward collapse. We know from hard-learned experience that it is better to encourage and support reform than to impose policies that will render a country a failed state," said the White House in a written statement. "The United States is taking historic steps to chart a new course in our relations with Cuba and to further engage and empower the Cuban people."
The Military

Army To Launch Spy Blimp Over Maryland 130

Posted by Soulskill
from the i-can-see-my-house-from-here dept.
FarnsworthG writes: A multi-billion-dollar Army project will soon be able to track nearly everything within 340 miles when an 80-yard-long blimp is hoisted into the air over Maryland. Way to be subtle, guys. From the article: "Technically considered aerostats, since they are tethered to mooring stations, these lighter-than-air vehicles will hover at a height of 10,000 feet just off Interstate 95, about 45 miles northeast of Washington, D.C., and about 20 miles from Baltimore. That means they can watch what’s happening from North Carolina to Boston, or an area the size of Texas."
Data Storage

Backblaze's 6 TB Hard Drive Face-Off 114

Posted by Soulskill
from the all-the-platters dept.
Esra Erimez writes: Backblaze is transitioning from using 4 TB hard drives to 6 TB hard drives in the Storage Pods they will be deploying over the coming months. With over 10,000 hard drives, the choice of which 6TB hard drive to use is critical. They deployed 45 and tested Western Digital (WD60EFRX) and Seagate (STBD6000100) hard drives into two pods that were identical in design and configuration except for the hard drives used.
Technology

New Cargo Ship Is 488 Meters Long 80

Posted by Soulskill
from the go-big-or-go-home dept.
An anonymous reader writes: The BBC reports on the construction of Prelude, a new ship that will be the world's longest vessel. It is 488 meters long and 74 meters wide, built with 260,000 tons of steel and displacing five times as much water as an aircraft carrier. Its purpose is to carry an entire natural gas processing plant as it sits over a series of wells 100 miles off the coast of Australia. Until now, it hasn't been practical to move gas that comes out of the wells with ships. The gas occupies too much volume, so it is generally piped to a facility on shore where it is processed and then shipped off to energy-hungry markets. But the Prelude can purify and chill the gas, turning it into a liquid and reducing its volume by a factor of 600. It will offload this liquid to smaller (but still enormous) carrier ships for transport.
Piracy

Sony Leaks Reveal Hollywood Is Trying To Break DNS 274

Posted by Soulskill
from the scorched-net-policy dept.
schwit1 sends this report from The Verge: Most anti-piracy tools take one of two paths: they either target the server that's sharing the files (pulling videos off YouTube or taking down sites like The Pirate Bay) or they make it harder to find (delisting offshore sites that share infringing content). But leaked documents reveal a frightening line of attack that's currently being considered by the MPAA: What if you simply erased any record that the site was there in the first place? To do that, the MPAA's lawyers would target the Domain Name System that directs traffic across the internet.

The tactic was first proposed as part of the Stop Online Piracy Act (SOPA) in 2011, but three years after the law failed in Congress, the MPAA has been looking for legal justification for the practice in existing law and working with ISPs like Comcast to examine how a system might work technically. If a takedown notice could blacklist a site from every available DNS provider, the URL would be effectively erased from the internet. No one's ever tried to issue a takedown notice like that, but this latest memo suggests the MPAA is looking into it as a potentially powerful new tool in the fight against piracy.
Space

NASA Study Proposes Airships, Cloud Cities For Venus Exploration 163

Posted by Soulskill
from the billy-dee-williams-volunteers-to-lead dept.
An anonymous reader writes: IEEE Spectrum reports on a study out of NASA exploring the idea that manned missions to Venus are possible if astronauts deploy and live in airships once they arrive. Since the atmospheric pressure at the surface is 92 times that of Earth, and the surface temperate is over 450 degrees C, the probes we've sent to Venus haven't lasted long. The Venera 8 probe sent back data for only 50 minutes after landing. Soviet missions in 1985 were able to get much more data — 46 hours worth — by suspending their probes from balloons. The new study refines that concept: "At 50 kilometers above its surface, Venus offers one atmosphere of pressure and only slightly lower gravity than Earth. Mars, in comparison, has a "sea level" atmospheric pressure of less than a hundredth of Earth's, and gravity just over a third Earth normal. The temperature at 50 km on Venus is around 75 C, which is a mere 17 degrees hotter than the highest temperature recorded on Earth.

The defining feature of these missions is the vehicle that will be doing the atmospheric exploring: a helium-filled, solar-powered airship. The robotic version would be 31 meters long (about half the size of the Goodyear blimp), while the crewed version would be nearly 130 meters long, or twice the size of a Boeing 747. The top of the airship would be covered with more than 1,000 square meters of solar panels, with a gondola slung underneath for instruments and, in the crewed version, a small habitat and the ascent vehicle that the astronauts would use to return to Venus's orbit, and home."
Programming

New AP Course, "Computer Science Principles," Aims To Make CS More Accessible 170

Posted by Soulskill
from the broadening-the-base dept.
theodp writes: "CS Principles," explains the intro to a Microsoft Research talk on a new Computer Science Toolkit and Gaming Course, "is a new AP course being piloted across the country and by making it more accessible to students we can help increase diversity in computing." Towards this end, Microsoft has developed "a middle school computing toolkit, and a high school CS Principles & Games course." These two projects were "developed specifically for girls," explains Microsoft, and are part of the corporation's Big Dream Movement for girls, which is partnering with the UN, White House, NSF, EU Commission, and others. One of Microsoft's particular goals is to "reach every individual girl in her house." According to a document on its website, Microsoft Research's other plans for Bridging the Gender Gap in computing include a partnership with the University of Wisconsin "to create a girls-only computer science Massive Open Online Course (MOOC)."
Science

A New Law For Superconductors 45

Posted by Soulskill
from the radar-enforced dept.
TaleSlinger sends word of a newly-discovered "mathematical relationship — between material thickness, temperature, and electrical resistance — that appears to hold in all superconductors." The work (abstract), led by Yachin Irvy, comes out of MIT's Research Laboratory of Electronics. Researchers found that a particular superconductor (niobium nitride) didn't fit earlier models estimating the temperature at which it changes from normal conductivity to superconductivity. So the researchers conducted a series of experiments in which they held constant either thickness or “sheet resistance,” the material’s resistance per unit area, while varying the other parameter; they then measured the ensuing changes in critical temperature. A clear pattern emerged: Thickness times critical temperature equaled a constant — call it A — divided by sheet resistance raised to a particular power — call it B. ... The other niobium nitride papers Ivry consulted bore out his predictions, so he began to expand to other superconductors. Each new material he investigated required him to adjust the formula’s constants — A and B. But the general form of the equation held across results reported for roughly three dozen different superconductors.
Space

SpaceX To Attempt Falcon 9 Landing On Autonomous Spaceport Drone Ship 71

Posted by Soulskill
from the good-luck dept.
An anonymous reader writes: SpaceX has announced that at the conclusion of its next rocket flight, it will attempt a precision landing of its Falcon 9 first stage onto an autonomous ocean platform. They say the odds of success aren't great, but it's the beginning of their work to make this a reality. Quoting: "At 14 stories tall and traveling upwards of 1300 m/s (nearly 1 mi/s), stabilizing the Falcon 9 first stage for reentry is like trying to balance a rubber broomstick on your hand in the middle of a wind storm. To help stabilize the stage and to reduce its speed, SpaceX relights the engines for a series of three burns.

The first burn—the boostback burn—adjusts the impact point of the vehicle and is followed by the supersonic retro propulsion burn that, along with the drag of the atmosphere, slows the vehicle's speed from 1300 m/s to about 250 m/s. The final burn is the landing burn, during which the legs deploy and the vehicle's speed is further reduced to around 2 m/s. ... To complicate matters further, the landing site is limited in size and not entirely stationary. The autonomous spaceport drone ship is 300 by 100 feet, with wings that extend its width to 170 feet. While that may sound huge at first, to a Falcon 9 first stage coming from space, it seems very small. The legspan of the Falcon 9 first stage is about 70 feet and while the ship is equipped with powerful thrusters to help it stay in place, it is not actually anchored, so finding the bullseye becomes particularly tricky."
AI

Economists Say Newest AI Technology Destroys More Jobs Than It Creates 509

Posted by Soulskill
from the i'm-sorry-dave,-there's-a-hiring-freeze-right-now dept.
HughPickens.com writes: Claire Cain Miller notes at the NY Times that economists long argued that, just as buggy-makers gave way to car factories, technology used to create as many jobs as it destroyed. But now there is deep uncertainty about whether the pattern will continue, as two trends are interacting. First, artificial intelligence has become vastly more sophisticated in a short time, with machines now able to learn, not just follow programmed instructions, and to respond to human language and movement. At the same time, the American work force has gained skills at a slower rate than in the past — and at a slower rate than in many other countries. Self-driving vehicles are an example of the crosscurrents. Autonomous cars could put truck and taxi drivers out of work — or they could enable drivers to be more productive during the time they used to spend driving, which could earn them more money. But for the happier outcome to happen, the drivers would need the skills to do new types of jobs.

When the University of Chicago asked a panel of leading economists about automation, 76 percent agreed that it had not historically decreased employment. But when asked about the more recent past, they were less sanguine. About 33 percent said technology was a central reason that median wages had been stagnant over the past decade, 20 percent said it was not and 29 percent were unsure. Perhaps the most worrisome development is how poorly the job market is already functioning for many workers. More than 16 percent of men between the ages of 25 and 54 are not working, up from 5 percent in the late 1960s; 30 percent of women in this age group are not working, up from 25 percent in the late 1990s. For those who are working, wage growth has been weak, while corporate profits have surged. "We're going to enter a world in which there's more wealth and less need to work," says Erik Brynjolfsson. "That should be good news. But if we just put it on autopilot, there's no guarantee this will work out."

Always draw your curves, then plot your reading.

Working...