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Open Source

Subsurface 4.3 Released 38

jones_supa writes "The Subsurface development team proudly announces release 4.3 of the open source divelog and dive planning program, available for all major desktop operating systems. This is the software originally founded by Linus Torvalds, and the development seems to be continuing in great pace. Subsurface now supports flexible filtering of the dive list based on criteria like tags, people or gear. Dive characteristics can now also be copied and pasted to other dives. The dive profile now offers an easy to understand tissue saturation graph that shows tissue saturation at any point during the dive. As another new feature in the dive profile, one can turn on an improved visualization of the gas combinations used during a dive. The dive computer and file format support have also gotten large improvements."

Comment Re:BASICally (Score 3, Insightful) 310

Around 400BC Socrates quipped:
Our youth now love luxury. They have bad manners, contempt for authority; they show disrespect for their elders and love chatter in place of exercise; they no longer rise when elders enter the room; they contradict their parents, chatter before company; gobble up their food and tyrannize their teachers.

And I think we have found some cuneiform tablets from Sumer with exasperated teacher comments way older than that:)


The Era of Young Innovators: Looking Beyond Universities To Source Talents 86

New submitter billylo writes "Tech heavy industries are constantly looking for new sources of innovations. But where are the best place to find them? Increasingly, businesses are looking beyond universities and source ideas from savvy high schoolers. Cases in point: High school programming team finished in the Top 5 of MasterCard's NXT API challenge (3rd one down the list) last weekend in Toronto; Waterloo's Computing Contest high-school level winners [PDF] tackled complex problems like these [PDF]; the FIRST robotics competition requires design, CAD, manufacturing and programming all done by high schoolers. Do you have other good examples on how to encourage high schoolers to become young innovators? Do you have any other successful examples?"

Comment Re:Is it just me? (Score 1) 101

Interesting idea, I wonder if that's ever been tried? I guess the feasibility depends on what the angular motions of these objects are.

In this case though, they "simply" take a lot of short-exposure images of the same region and add them together. From the abstract:

The technique relies on a combined use of a novel data processing approach and a new generation of high-speed cameras which allow taking short exposures of moving objects at high frame rates, effectively ``freezing'' their motion. Although the signal to noise ratio (SNR) of a single short exposure is insufficient to detect the dim object in one frame, by shifting successive frames relative to each other and then co-adding the shifted frames in post-processing, we synthetically create a long-exposure image as if the telescope were tracking the object with a significantly higher SNR.

Submission + - Open Source USB DAC passes CE and FCC tests (

BorgeStrand writes: The Audio Widget project has resulted in a fully functional open source USB digital-to-analog converter. The project firmware implements asynchronous USB Audio Class 1 & 2 in an Atmel MCU. Because of its recent popularity, one of the hardware implementations was subjected to CE and FCC test regimes. And it passed with flying colors. The AB-1.2 DAC from QNKTC (Quantization Noise Killed The Cat — has firmware, electrical schematics and a Windows ASIO driver which are all open source. Although it plays well out of the box, anyone so inclined is very welcome to modify its internals and share their results with the rest of the group.

Comment Known or chosen plaintext (Score 3, Informative) 157

How is this in principle different from the known plaintext attacks (

These assume that the attacker knows both the encrypted version of the text and the original it was based on, and tries to glean information from their correlation.

Modern ciphers are made resistant even to chosen plaintext attacks, where the analyst knows the key and can tailor-make pairs of plain- and ciphertext.


New Asus Device Runs Both Windows and Android 126

taz346 writes "Asus has unveiled a new 11.6-inch tablet/laptop that runs both Windows 8 and Android Jelly Bean side by side, the BBC reports. The firm said 'users would be able to synchronise data between the platforms in order to enjoy a "smooth transition" between each mode.' Hmmm, I'm guessing one could also create another partition and install a full Linux distro as well, though there's no telling how UEFI might come into play."

Comment Re:No surprise there (Score 1) 263

Not true. The probability that the next letter in the OTP is (say) an A is always 1/26 when you have no prior knowledge about how the cipher clerk selected it. This is the optimal case, and any changes in how it is selected will only reduce the entropy of the pad.

*or did I just hear a whoosh over my head?*

Comment Re:Wait... (Score 4, Insightful) 189

The corrupted blood incident is actually better described as emergent behavior in a complex system.

The Blizzard developers didn't make a mistake, they just didn't think about all the consequences that debuff would cause in a world-like environment. And researchers had a field day studying the CB spread of the epidemic:)

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