Become a fan of Slashdot on Facebook


Forgot your password?

Submission + - UCL Scientists Push 1.125Tbps Through a Single Coherent Optical Receiver

Mark.JUK writes: A team of researchers working in the Optical Networks Group at the University College London in England claim to have achieved the "greatest information rate ever recorded using a single [coherent optical] receiver", which was able to handle a record data speed of 1.125 Terabits per second (Tbps). The result, which required a 15 sub-carrier 8GBd DP-256QAM super-channel (15 channels of data) and total bandwidth of 121.5GHz, represents an increase of 12.5% relative to the previous record (1Tbps). Now they just need to test it using some long fibre optic cable because optical signals tend to become distorted when they travel over thousands of kilometres.

Comment I can probably get that for you (Score 1) 78

I work in R&D for a large company that's been a Cisco Gold level partner for 20-something years. Give me some way to contact you and I can probably ping my buddy over in Sales Engineering and get one in a couple of hours if it's a thing that can be gotten (I don't know the first thing about the hardware side of the house, but my friend went from engineering to sales - 'cause money. Can't blame him for doing less work for more pay. Even if I do... often.).

I probably actually have access, but Cisco's site is a disaster to try to navigate and that's just my small part of their dev site. Believe it or not, still better than Avaya's dev/support site. Legit offer if you want to exchange contact info. A couple people on this site have helped me out over the years and I'm fairly sure this is something that I can take care of with an IM and maybe a beer.

Submission + - First gravitational waves detected

Trax3001BBS writes: "Two black holes that collided 1.3 billion years ago created the waves seen at a new type of space observatory, one located at Hanford in Washington state and the other in Louisiana, officials announced Thursday morning.

In August 2015 the observatories started some initial engineering runs to test equipment and prepare for the official start of observations Sept. 18.

But at 2:50 a.m. Sept. 14 at the Hanford LIGO, an unusual reading was recorded. Just seven-thousands of a second earlier a similar reading had been recorded at the Louisiana LIGO."

Submission + - Even Einstein doubted his gravitational waves (

Flash Modin writes: In 1936, twenty years after Albert Einstein introduced the concept, the great physicist took another look at his math and came to a surprising conclusion. “Together with a young collaborator, I arrived at the interesting result that gravitational waves do not exist, though they had been assumed a certainty to the first approximation,” he wrote in a letter to friend Max Born. Interestingly, his research denouncing gravitational waves was rejected by Physical Review Letters, the journal that just published proof of their existence. The story shows that even when Einstein's wrong, it's because he was already right the first time.

Submission + - Gravitational waves spotted for the first time. (

NecroBones writes: Long ago, deep in space, two massive black holes—the ultrastrong gravitational fields left behind by gigantic stars that collapsed to infinitesimal points—slowly drew together. The stellar ghosts spiraled ever closer, until, about 1.3 billion years ago, they whirled about each other at half the speed of light and finally merged. The collision sent a shudder through the universe: ripples in the fabric of space and time called gravitational waves. Five months ago, they washed past Earth. And, for the first time, physicists detected the waves, fulfilling a 4-decade quest and opening new eyes on the heavens.

Submission + - Grandma's Phone, DSL, and the Copper They Share (

szczys writes: DSL is high-speed Internet that uses the same twisted pair of copper wire that still works with your Grandmother's wall-mounted telephone. How is that possible? The short answer is that the telephone company is cheating. But the long answer delves into the work of Claude Shannon, who figured out how much data could be reliably transferred using a given medium. His work, combined with that of Harry Nyquist and Ralph Hartley (pioneers of channel capacity and the role noise plays in these systems), brings the Internet Age to many homes on an infrastructure that has been in use for more than a hundred years.

Submission + - CoreOS Launches Rkt 1.0 (

darthcamaro writes: Docker is about to get some real competition in the container runtime space, thanks to the official launch of rkt 1.0. CoreOS started building rkt in 2014 and after more than a year of security, performance and feature improvement are now ready to declare it 'production-ready.' While rkt is a docker runtime rival, docker apps will run in rkt, giving using a new runtime choice.

rkt will remain compatible with the Docker-specific image format, as well as its own native App Container Image (ACI). That means developers can build containers with Docker and run those containers with rkt. In addition, CoreOS will support the growing ecosystem of tools based around the ACI format.

Submission + - Docker 1.10 Brings Linux SECCOMP Security to Containers (

darthcamaro writes: Starting this week, there is a new tool in the toolbox to secure Docker containers. In addition to SELinux (or AppArmor) and Namespaces — Docker 1.10 will now include a default SECCOMP profile. So what's the difference between SECCOMP and SELinux?

SELinux is the list of people you can talk to, while seccomp is the list of what words you can say, McCarty said. As an example, if a person could communicate with another person using only three or five words, it would very much limit what could be expressed and prevent most types of illicit activities, and applies in much the same way to Linux containers, he added.

Comment Re:AnonSec = Attempted Murderers (Score 3, Interesting) 133

More or less. There is no acceptable or even pseudo-acceptable justification for this attack.

There's no secret conspiracy uncovered, no risk to national security the government won't admit to or fix, just NASA doing what they're supposed to be doing.

And these idiots deciding to try and fuck it up as best they can because they can. A lengthy stay in prison without access to electronics might just be what they need to smarten up. If not, at least they'll have less opportunity to cause trouble for a while.

Comment Re:Apple is overdue (Score 2) 428

>Outside of VR

If Apple wants to put out the iReality, a high definition stereo heads-up display with 3-axis motion detection, and some decent stereo speakers, I don't care if it's an overpriced bit of shiny white plastic with an inaccessible battery. Just because it's Apple there's a good chance it'd be a significant boost for the VR market.

If Apple wants to put out iGlasses and make a Google Glass equivalent that people would actually wear, that'd be awesome too. Not because I'd wear them (they'd inevitably be overly thick white plastic with a prominent Apple logo on them...) but because the knock-offs would have to be far better than what's available today to be at all competitive, and I'd wear one of them.

Submission + - shutting down -- Thanks, Facebook. (

waimate writes:, a popular BAAS (back-end as a service), has fallen prey to Facebook. Declared by Fast Company as one of the top 50 most innovative companies of 2013, committed users shuddered when it was purchased by Facebook soon after. Today the other shoe finally dropped, when Facebook announced they are shutting the service down, leaving thousands of users scrambling for a viable replacement. It calls into question to what extent developers can trust *AAS providers, while at the same time creating an opportunity for a vendor to deploy a compatible service. Many other service provision offerings exist, but none quite the same as Parse. Thanks for nothing, Facebook.

Submission + - Man spanks himself to death

phrackthat writes: Clifford Ray Jones of Detroit died in a Darwin Award worthy fashion. In the ultimate case of distracted driving, he was spanking it to porn on his phone while negotiating a turn on a ramp and rolled his 1996 Toyota. He was partially ejected from his car's sunroof because he wasn't wearing a seat belt. He also wasn't wearing any pants. He died at the scene. Nothing in the story about whether the car was stick(y) shift or automatic. Additional details here.

Submission + - Hillary's team copied intel off top-secret server to email ( 3

RoccamOccam writes: The FBI is investigating whether members of Hillary Clinton’s inner circle “cut and pasted” material from the government’s classified network so that it could be sent to her private e-mail address, former State Department security officials say.

Somehow, highly classified information from the Secret Internet Protocol Router Network (SIPRNet), as well as even the super-secure the Joint Worldwide Intelligence Communications System (JWICS), jumped from those closed systems to the Non-Classified Internet Protocol Router Network (NIPRNet) and turned up in at least 1,340 of Clinton’s home e-mails — including several the CIA earlier this month flagged as containing ultra-secret Sensitive Compartmented Information and Special Access Programs.

Submission + - How Melinda Gates Got Her Daughters Excited About Science

theodp writes: GeekWire reports that Melinda Gates concluded a Davos panel discussion about gender parity with a personal story about her own family, explaining how she originally became interested in computer science, and how she later played Lab Manager to BillG's Mr. Wizard to help pass along their passion for science and math to their kids. "On Saturday mornings," Gates explained, "I wanted to sleep late. So you know what I did? I made sure there were science projects available, and that’s what he did with our two daughters and our son. And guess what my two daughters are interested in? Science and math."

Slashdot Top Deals

A good supervisor can step on your toes without messing up your shine.