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internet « Which Light


Open Mesh Networks: Innovative p2p communication projects around the world

Saturday, August 6th, 2011

A few months ago I met Josh King, who was in town for the Media Reform Conference.  At the time, I recently got an Android phone and thought a lot about why this incredible computer that fits in my pocket could not talk directly to other phones.  Instead it had to go through a tower.  It turns out that such a case is a special instance of a mesh network, which is exactly what Josh was working on.  It was exciting to hear this- because the potential of mesh networks are immense, but I knew no one who was working on them.  He told me about open mesh networks being developed in cities around Europe- and I wondered- why doesn’t it exist here?

A few months earlier the internet was shut down in Egypt.  Who would have guessed it? A week before it would be a work of fiction.  But it happened, and months later the New America Foundation received some press about their internet in a suitcase.

‘Internet in a suitcase’ is the work of the Open Technology Initiative at the New America Foundation, led by Sascha Meinrath.  He came to the Berkman center a week ago to speak of the work at OTI focusing on the topics of community broadband, M-lab, and open mesh networks.  He spoke of these projects anecdotally, and I recommend watching the webcast.  Its interesting to hear about not only the growth of OTI, but the pressure against their work, and the propaganda spread against their work by telecoms- to an extent it boils down to who has more PR money.

But one thing inspiring about the New America Foundation is that any critiques they have are backed up with solutions that are ready to be implemented.  One of the solutions, along the lines that everyone should have access to the web, is the development of open mesh networks.

I spoke with Sascha after his talk- specifically on spreading info on how to build these mesh networks.  There is so much potential in them, including options for community level wireless, creating a platform for local applications, and the ability to connect if the communication infrastructure goes down (natural disasters, oppressive regimes).   He mentioned a few projects happening, and I did some research afterwards.  NAF is working on some projects in house, but is also trying to make connections between others who are working on mesh networking in some form. And here is what we have:

OpenWrt: Wireless Freedom : “OpenWrt is a highly extensible GNU/Linux distribution for embedded devices. Unlike many other distributions for these routers, OpenWrt is built from the ground up to be a full-featured, easily modifiable operating system for your router.”

The Serval Project: “Communicate anywhere, any time … without infrastructure, without mobile towers, without satellites, without wifi hotspots, and without carriers. Use existing off-the-shelf mobile cell phone handsets. Use your existing mobile phone number wherever you go, and never pay roaming charges again.”

Commotion Wireless: “and organizers here propose to build a new type of tool for democratic organizing: an open source “device-as-infrastructure” distributed communications platform that integrates users’ existing cell phones, WiFi-enabled computers, and other WiFi-capable personal devices to create a metro-scale peer-to-peer (mesh) communications network.” There are tons of resources here, this is one of the OTI projects as well.

Byzantium: “The goal of Project Byzantium is to develop a communication system by which users can connect to each other and share information in the absence of convenient access to the Internet. “  This is a project by HacDC.

FabFi: “FabFi is an open-source, FabLab-grown system using common building materials and off-the-shelf electronics to transmit wireless ethernet signals across distances of up to several miles. With Fabfi, communities can build their own wireless networks to gain high-speed internet connectivity—thus enabling them to access online educational, medical, and other resources. ” And instructions on how to make it, all emerging form the FabLab project at the Center for Bits and Atoms.

DIY Mesh Guide: “Reliable, affordable and easy access to telecommunication services for all has been identified as key to social and economic development in Africa. Self-provisioning and community ownership of low cost, distributed infrastructure is becoming a viable alternative to increase the penetration of telecommunication services in rural Africa. The recent emergence of wireless mesh network technology (based on IEEE 802.11 a/b/g standards) can help to improve the delivery of telecommunication services in these regions. ”


So those are a few projects that are being carried out right now. I’d say if you’re interested in any of these, get involved. They are all open source projects, and benefit from a community of developers and users providing feedback.  In the end, it will be an immensely useful tool for all.  The people who first get involved will have an idea of the power of the projects, and like any successful platform, this will be a tool that will birth other tools.  For instance, public apps.  This has the potential to provide tons of jobs, not only to build the infrastructure bottom-up, but to also build on top of it, and think of new ways to interface with it.

Investments in public infrastructure have an immense positive impact on the well being of citizens.  Korea and Australia are currently putting in a lot of funding on a public broadband infrastructure.  The effects of this will become obvious in the years to come, and it will be clear that in the US such measures would have been beneficial.  The above information resources and projects put such matters back in the hands of people.  One can develop a mesh network with their community and allow people to connect cheaply, or even freely. Imagine the impact on education, information flow, and community engagement.



Internet analytics for yourself

Wednesday, July 6th, 2011

I started playing with sqlite3 recently, its a super easy database to learn and is used both in mobile and web apps. I just found that your Google history is also saved as a sqlite3 database.

For me its under

/Users/<user name>/Library/Application Support/Google/Chrome/Default

You can get there using Terminal.  Open it up and type

cd /Users/<user name>/Library/Application Support/Google/Chrome/Default

substituting <user name> with your user name. Type in

sqlite3 History

and then once you’re in the database, hit .tables, and you can see all of the tables that are saved.

These include: downloads, presentation, urls, keyword_search_terms  segment_usage    visit_source, meta, segments, visits.  To look into any of those type ‘select * from <table>;’ so for example ‘select * from urls;’ and you’ll see the URL, the id, the time, the name, the visit count.  You’ll have to exit Chrome to be able to access the database, otherwise it will say ‘this database is locked’ or something like that.

Its way cool. I love chrome’s UI for looking at your history in the browser (History>>Show Full History).  Its pretty easy to navigate through, and you see your internet path throughout the day.  Now having the data allows you to make your own data tools to visualize and understand where you go on the web, when, and how often.  And you can easily export it.  I can see this being helpful in improving productivity.

For one, you can reflect on your day’s work and see where you were able to focus, and what distracted you.

The Master Switch

Thursday, March 17th, 2011

Amidst massive optimism regarding the internet, Timothy Wu retains a critical view of the development of the internet by examining social attitudes of innovations in communication technology in the past.

In an interview with the Guardian he describes some of the main ideas of his new work, The Master Switch.

With the introduction of a communication technology there is a lot of competition, and the ecology around the innovation is decentralized.  Soon a company dominates, centralizing the technology.  Examples include the telephone and radio industries.  When these technologies came out,  people  were exuberant thinking of the utopic possibilities, just as we do now with the internet.

With regards to the web, its still an open question- will it become centralized?  Economic network effects create monopolies of our time- Facebook is the dominant social network.  There are a few enormous companies built on the web.

It may seem that people are averse to centralized control- but human nature also plays a role to allow it. Initially people like a diversity of content, but soon want something ‘safer and secure’, encouraging more control on products.

Throughout history there are counter waves between centralization and decentralization of technologies.

10 years down the line Wu sees one of two possible futures.  In one, people stop thinking of the internet as a decentralized platform, and instead the internet is a few companies, Google, Facebook, etc.  Another future is that the current centralization is just a phase, and the internet will be a platform for new entrepreneurial ventures, new companies will arise and old ones will fade out.

Weather Orb

Saturday, July 31st, 2010

Make an orb that will glow blue when it is going to rain later in the day.

Growing Mural

Thursday, December 17th, 2009

Painting a wall, all the while taking pictures of the progression. The painting will continue to adapt, and pictures will be taken. Afterwards a website will be created to document the growth, where each step of growth will be made in a region by clicking on that part of the image.

Web instruments

Thursday, December 17th, 2009

Use the pointer in a web page to make cool sounds, like a synth control. Like have a box and when you move the cursor in it, based on the movements, different sounds happen.