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

 



Forgot your password?
typodupeerror
×
Biotech

Researchers Harness E. Coli To Produce Propane 82

Rambo Tribble writes A team of British and Finnish scientists have used the common bacteria Escherichia coli to produce the environmentally-friendly fuel propane. By introducing enzymes to modify the bacteria's process for producing cell membranes, they were able directly produce fuel-grade propane. While commercial application is some years off, the process is being hailed as a cheap, sustainable alternative to deriving the gas from fossil fuel production. As researcher Patrik Jones is quoted as saying, "Fossil fuels are a finite resource and...we are going to have to come up with new ways to meet increasing energy demands."

Why Phone Stores Should Stockpile Replacements 253

Bennett Haselton writes: I would be in favor of a regulation requiring cell phone stores to have replacement phones on hand, for any phone model covered by a customer's insurance policy. Then customers who have insurance protection on their phones could get the damaged phones replaced instantly, and the replacement phones that are normally mailed out by overnight mail to customers under their protection plan, could instead be mailed to the stores to replace the one they just gave out to the customer. Read on for the rest of Bennett's thoughts
Books

E-Books On a $20 Cell Phone 116

An anonymous reader writes "Moon+ Pro Reader, FBReader, Kindle, you name it--many popular Android e-book apps can run on a smartphone available for $20 and shipping. The trick is to respect the device's limits and keep down the number of apps you install. This fun isn't for eager multitaskers. On the bright side, the $20 phone can do Acapela TTS, includes a 4GB memory card and works with cards of up to 32GB--easily enough for scads of pre-loaded books. Plus, the WiFi is great. And the screen of 3.2 inches isn't that much smaller than the 3.5 inchers on the older iPads. What could cell phone e-reading mean in the many "book deserts" of the U.S.? And how about the U.K. where miserly pols are closing libraries even though the Guardian says "a third of UK children do not own a single book and three-quarters claim never to read outside school"? The smartphone post on the LibraryCity site tells how librarians and others could start "cell phone book clubs" to promote the discovery and absorption of books as well as smarter use of technology."
Operating Systems

You Got Your Windows In My Linux 613

snydeq writes: Ultimately, the schism over systemd could lead to a separation of desktop and server distros, or Linux server admins moving to FreeBSD, writes Deep End's Paul Venezia. "Although there are those who think the systemd debate has been decided in favor of systemd, the exceedingly loud protests on message boards, forums, and the posts I wrote over the past two weeks would indicate otherwise. I've seen many declarations of victory for systemd, now that Red Hat has forced it into the enterprise with the release of RHEL 7. I don't think it's that easy. ... Go ahead, kids, spackle over all of that unsightly runlevel stuff. Paint over init and cron, pam and login. Put all of that into PID1 along with dbus. Make it all pretty and whisper sweet nothings about how it's all taken care of and you won't have to read a manual or learn any silly command-line stuff. Tune your distribution for desktop workloads. Go reinvent Windows."
Patents

SpaceX Challenges Blue Origin Patents Over Sea-Landing Rocket Tech 75

speedplane writes: Last week, Elon Musk's SpaceX fired two challenges (PDFs) at Jeff Bezos' Blue Origin over U.S. Patent 8,678,321, entitled "Sea landing of space launch vehicles and associated systems and methods." The patent appears to cover a method of landing a rocket on a floating platform at sea. In their papers, SpaceX says that "by 2009, the earliest possibly priority date listed on the face of the patent, the basic concepts of 'rocket science' were well known and widely understood. The "rocket science" claimed in the '321 patent was, at best, 'old hat[.]'" Blue Origin has approximately three months to file a preliminary response to the challenge. You can review the litigation documents here and here. (Disclosure: I run the website hosting several of the above documents.)
Software

Apple Reveals the Most Common Reasons That It Rejects Apps 132

mrspoonsi writes One of the great mysteries of the App Store is why certain apps get rejected and why others don't. Apple has let a surprising number of ripoffs and clones through the store's iron gates, yet some developers face rejection for seemingly innocent apps. "Before you develop your app, it's important to become familiar with the technical, content, and design criteria that we use to review all apps," explains Apple on a new webpage called "Common App Rejections." Rejections include: Apple and our customers place a high value on simple, refined, creative, well thought through interfaces. They take more work but are worth it. Apple sets a high bar. If your user interface is complex or less than very good, it may be rejected; Apps that contain false, fraudulent or misleading representations or use names or icons similar to other Apps will be rejected.
Canada

Canada Tops List of Most Science-Literate Countries 221

An anonymous reader writes "A recent survey of scientific education and attitudes showed the Canadian population to have the highest level of scientific literacy in the world, as well as the fewest reservations about the direction of scientific progress (full report). A key factor is a high level of scientific knowledge among the general population (despite comparatively low numbers of people employed in STEM fields). Another is a higher level of comfort with choosing rationality over religious belief — only 25% of Canadians surveyed agreed with the statement "We depend too much on science and not enough on faith", as opposed to 55% in the U.S. and 38% in the E.U.

I also wonder if the vaunted Canadian healthcare system plays a role. When advances in medical science are something you automatically expect to benefit from personally if you need them, they look a lot better than when you have to scramble just to cover your bills for what we have now."
Crime

Anita Sarkeesian, Creator of "Tropes vs. Women," Driven From Home By Trolls 1262

Sonny Yatsen writes: Anita Sarkeesian, the creator of Tropes vs. Women — a video series exploring negative tropes and misogynistic depictions of women in video games — reports that she has been driven from her home after a series of extremely violent sexual threats made against her. Her videos have previously drawn criticism from many male gamers, often coupled with violent imagery or threats of violence. The Verge story linked has this to say: The threats against Sarkeesian have become a nasty backdrop to her entire project — and her life. If the trolls making them hoped for attention, they've gotten it. They've also inexorably linked criticism of her work, valid or not, with semi-delusional vigilantism, and arguably propelled Tropes vs. Women to its current level of visibility. If a major plank of your platform is that misogyny is a lie propagated by Sarkeesian and other "social justice warriors," it might help to not constantly prove it wrong.
Google

Google Wins $1.3 Million From Patent Troll 35

An anonymous reader writes Earlier this year, Google sued Beneficial Innovations for breach of contract, ostensibly in defense of its Doubleclick ad technology clients against whom Beneficial Innovations had filed suits despite Google having already paid licensing fees for the technology. Following Google's jury trial win, the company was originally awarded only 'nominal damages of $1 and a judicial order stopping Beneficial from going after more Doubleclick customers.' Now, however, the presiding judge has ruled that Google is entitled to some attorneys' fees in the amount of $1.3 million (PDF).
Earth

Climate Damage 'Irreversible' According Leaked Climate Report 708

New submitter SomeoneFromBelgium (3420851) writes According to Bloomberg a leaked climate report from the IPPC speaks of "Irreversible Damage." The warnings in the report are, as such, not new but the tone of voice is more urgent and more direct than ever. It states among other things that global warming already is affecting "all continents and across the oceans," and that "risks from mitigation can be substantial, but they do not involve the same possibility of severe, widespread, and irreversible impacts as risks from climate change, increasing the benefits from near-term mitigation action."
Censorship

Put A Red Cross PSA In Front Of the ISIS Beheading Video 300

Bennett Haselton writes After footage of James Foley's beheading by ISIS terrorists was posted online on Tuesday, Twitter and Youtube elected to remove any footage or links to the footage posted by users. Obviously this reduces the incentive for terrorist groups to post such content, by shrinking their audience, but it also reduces the public's access to information. Would it be ethical to make the content available, if it was preceded by an advertisement for a cause that runs counter to everything ISIS stands for? Read below to see what Bennett has to say.
Education

ACM Blames the PC For Driving Women Away From Computer Science 329

theodp (442580) writes "Over at the Communications of the ACM, a new article — Computing's Narrow Focus May Hinder Women's Participation — suggests that Bill Gates and Steve Jobs should shoulder some of the blame for the dearth of women at Google, Facebook, Apple, Twitter and other tech companies. From the article: "Valerie Barr, chair of ACM's Council on Women in Computing (ACM-W), believes the retreat [of women from CS programs] was caused partly by the growth of personal computers. 'The students who graduated in 1984 were the last group to start college before there was personal computing. So if you were interested in bioinformatics, or computational economics, or quantitative anthropology, you really needed to be part of the computer science world. After personal computers, that wasn't true any more.'" So, does TIME's 1982 Machine of the Year deserve the bad rap? By the way, the ACM's Annual Report discusses its participation in an alliance which has helped convince Congress that there ought to be a federal law making CS a "core subject" for girls and boys: "Under the guidance of the Education Policy Committee, ACM continued its efforts to reshape the U.S. education system to see real computer science exist and count as a core graduation credit in U.S. high schools. Working with the CSTA, the National Center for Women and Information Technology, NSF, Microsoft, and Google, ACM helped launch a new public/private partnership under the leadership of Code.org to strengthen high school level computing courses, improve teacher training, engage states in bringing computer science into their core curriculum guidelines, and encourage more explicit federal recognition of computer science as a key discipline in STEM discussions.""
Stats

Among Gamers, Adult Women Vastly Outnumber Teenage Boys 276

MojoKid writes: The Entertainment Software Association has just released its 2014 report on the state of the video game industry (PDF), and as the title of this post suggests, there have been some significant shifts since the last report. Let's tackle the most interesting one first: Females have become the dominant gamer, claiming 52% of the pie. That's impressive, but perhaps more so is the fact that women over the age of 18 represent 36% of the game-playing population, whereas boys aged 18 and under claim a mere 17%. Statistics like these challenge the definition of "gamer." Some might say that it's a stretch to call someone who only plays mobile games a "gamer" (Candy Crush anyone?). Mental hurdle aside, the reality is that anyone who plays games, regardless of the platform, is a gamer.
Education

It's Dumb To Tell Kids They're Smart 243

theodp writes Over at Khan Academy, Salman Khan explains Why I'm Cautious About Telling My Son He's Smart. "Recently," writes Khan, "I put into practice research I had been reading about for the past few years: I decided to praise my son not when he succeeded at things he was already good at, but when he persevered with things that he found difficult. I stressed to him that by struggling, your brain grows. Between the deep body of research on the field of learning mindsets and this personal experience with my son, I am more convinced than ever that mindsets toward learning could matter more than anything else we teach." According to Dr. Carol Dweck, who Khan cites, the secret to raising smart kids is not telling kids that they are. A focus on effort — not on intelligence or ability — says Dweck, is key to success in school and in life.
Earth

Cause of Global Warming 'Hiatus' Found Deep In the Atlantic 465

vinces99 writes with news about a study that may account for a slowdown in air temperature rises. Following rapid warming in the late 20th century, this century has so far seen surprisingly little increase in the average temperature at the Earth's surface. More than a dozen theories have now been proposed for the so-called global warming hiatus, ranging from air pollution to volcanoes to sunspots. New research from the University of Washington shows the heat absent from the surface is plunging deep in the north and south Atlantic Ocean, and is part of a naturally occurring cycle. The study is published in Science. Subsurface ocean warming explains why global average air temperatures have flatlined since 1999, despite greenhouse gases trapping more solar heat at the Earth's surface. "Every week there's a new explanation of the hiatus," said corresponding author Ka-Kit Tung, a UW professor of applied mathematics and adjunct faculty member in atmospheric sciences. "Many of the earlier papers had necessarily focused on symptoms at the surface of the Earth, where we see many different and related phenomena. We looked at observations in the ocean to try to find the underlying cause." What they found is that a slow-moving current in the Atlantic, which carries heat between the two poles, sped up earlier this century to draw heat down almost a mile (1,500 meters). Most previous studies focused on shorter-term variability or particles that could block incoming sunlight, but they could not explain the massive amount of heat missing for more than a decade.

Slashdot Top Deals

The question of whether computers can think is just like the question of whether submarines can swim. -- Edsger W. Dijkstra

Working...