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Rescooped by WalooMaloo from iPhone and iPad development!


NSPredicate | internet |

NSPredicate is a Foundation class that specifies how data should be fetched or filtered. Its query language, which is like a cross between a SQL WHERE clause and a regular expressions, provides an expressive, natural language interface to define logical conditions on which a collection is searched.

Via Vincent Demay
Vincent Demay's curator insight, July 18, 2013 1:47 PM

Yet another great article from NSHipster

Rescooped by WalooMaloo from DIY | Maker!

New Software Will Prevent You From Accidentally Printing a Gun

New Software Will Prevent You From Accidentally Printing a Gun | internet |

For those who have yearned to dabble in the hot new trend of 3D printing, but worried they might accidentally throw in a trigger and some bullets and wind up making a firearm can now rest easy. The Danish 3D-printing firm Create It REAL has got you covered.

The company, which sells 3D printer component parts and software, recently announced that it has come up with a firearm component detection algorithm that will give 3D printers the option to block any gun parts. The software compares each component a user is trying to print with a database of potential firearms parts, and shuts down the modeling software if it senses the user is trying to make a gun.

Via Pierre Tran
Pierre Tran's curator insight, July 23, 2013 4:02 PM

Comme les photocopieurs qui interdisent la reproduction de billets de banque, cette imprimante 3D interdit la reproduction "accidentelle" d'armes à feu.

Rescooped by WalooMaloo from Surfing the Broadband Bit Stream!

Meshnet activists rebuilding the internet from scratch | New Scientist

Meshnet activists rebuilding the internet from scratch | New Scientist | internet |

Worried about the NSA snooping on your email? Maybe you need to start creating your own personal internet

The internet is neither neutral nor private, in case you were in any doubt. The US National Security Agency can reportedly collect nearly everything a user does on the net, while internet service providers (ISPs) move traffic according to business agreements, rather than what is best for its customers. So some people have decided to take matters into their own hands, and are building their own net from scratch.


Across the US, from Maryland to Seattle, work is underway to construct user-owned wireless networks that will permit secure communication without surveillance or any centralised organisation. They are known as meshnets and ultimately, if their designers get their way, they will span the country.


Dan Ryan is one of the leaders of the Seattle Meshnet project, where sparse coverage already exists thanks to radio links set up by fellow hackers. Those links mean that instead of communicating through commercial internet connections, meshnetters can talk to each other through a channel that they themselves control.


Each node in the mesh, consisting of a radio transceiver and a computer, relays messages from other parts of the network. If the data can't be passed by one route, the meshnet finds an alternative way through to its destination. Ryan says the plan is for the Seattle meshnet to extend its coverage by linking up two wireless nodes across Lake Union in downtown Seattle.


And over the country at the University of Maryland, Baltimore County, student Alexander Bauer is hoping to build a campus meshnet later this year. That will give his fellow students an alternative communications infrastructure to the internet.


While these projects are just getting off the ground, a mesh network in Catalonia, Spain, is going from strength to strength. Guifi was started in the early 2000s by Ramon Roca, an Oracle employee who wanted broadband at his rural home. The local network now has more than 21,000 wireless nodes, spanning much of Catalonia. As well as allowing users to communicate with each other, Guifi also hosts web servers, videoconferencing services and internet radio broadcasts, all of which would work if the internet went down for the rest of the country.


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Via Chuck Sherwood, Senior Associate, TeleDimensions, Inc
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