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Oct 15 2008   9:00AM GMT

What is Blog Action Day? A chance to help fight global poverty.



Posted by: Alexander Howard
open source, small business, business, Web 2.0, media, Technology, Internet, useful, cool, culture, education, learning, free, academics, volunteer, green, event, entrepeneurship, resource, Development, tool, politics, blogging, buzz, science, communications

Blog Action Day is, according to its founders, “an annual nonprofit event that aims to unite the world’s bloggers, podcasters and videocasters, to post about the same issue on the same day.”

In 2007, the issue was the environment. In 2008, the theme is poverty.

By coordinating the efforts of many bloggers (more than 10,000 different sites, as of this morning), the organizers hope to galvanize improvement in the lots of the world’s poor. As measured by the World Bank, substantial improvements have been made since the 1980s.

Even so, one quarter of the world continues to subsist on less than $1.25/day.

Here’s what you can do to help:

Spread the word!

Aug 20 2008   6:58PM GMT

Video: MIT’s OpenCourseWare — Introduction to Algorithms (Lesson 1 and 2)



Posted by: Alexander Howard
Google, programming, software, Technology, video, useful, education, college, learning, courses, free, academics, Class, public domain, tutorial, fundamentals, software development

Thanks to a friendly Creative Commons license, these introductory lectures could be uploaded to Google Video by Peteris Krumins from the host on MIT’s OpenCourseWare website. In his post about them on his blog at catonmat.net, Peter also has posted his notes on each lecture. As he notes, the first lecture is given by MIT professor Charles E. Leiserson, the “L” in the authors of the seminal book, Introduction to Algorithms. In other words, if you’re looking for an entrance point to understanding algorithms, you’ll be hard-pressed to find a better authority or context.

Here’s Lesson 1:

And here’s Lesson 2:

Thanks, Peter, and enjoy!


Jun 10 2008   11:26AM GMT

What is a social spreadsheet? Dan Bricklin and SocialText combine wikis with workspaces at Enterprise 2.0.



Posted by: Alexander Howard
open source, interoperability, applications, enterprise, Internet, innovation, commentary, cool, education, learning, academics, social publishing, interesting, invention, event, creativity, collaboration, freeware, Development, community, information, productivity, spreadsheet, history, communications, interface, software development, conference, enterprise 2.0

Ross Mayfield, founder of SocialText, a maker of enterprise wiki software, announced the launch of a new social spreadsheet at the Enterprise 2.0 Conference. In his presentation to a packed hall of technology executives, developers, media and social media mavens, Mayfield first addressed the state of Enterprise 2.0 before asking a simple question:

How can you work with structured data in an unstructured way?

He noted that the killer app of the PC generation that came of age in the 1980s was the spreadsheet, pioneered by Dan Bricklin in the form of VisiCalc. That app was what led many early adopters to buy an Apple and tap into the productivity gains brokered by the IT revolution.

Spreadsheets are now used for communication, lists, tables and two-dimensional layout. Mayfield asserted that they’re the most common database on the planet.

Workers collaborated originally by using sneakernet and floppy disks to share spreadsheets.

Now, we play “email volleyball with attachments” — a descriptive and all too accurate summation of how files ping pong around a network, introducing version control issues, 90% error rates. As Ross sees it, reverse engineering a spreadsheet on a web page misses the potential.

For the past two years, Socialtext has been working with Dan Bricklin to combine the usability and collaborative power of a wiki with the organization and flexibility of a spreadsheet. Meet the social spreadsheet, a “multi-user wiki-based spreadsheet program that simplifies version control, reduces errors and increases productivity.”

The software is able to cross organizational, structural, geographical and temporal boundaries. In the short video below, (available on Viddler for sharing or on YouTube), Dan Bricklin explains what a social spreadsheet is, how it works, how he was involved in the project and what users can expect from the software.


The social spreadsheet is open sourced and will be used in XOs for the One Laptop Per Child project worldwide, providing access to a quintessential IT tool for farmers, village merchants, businessmen, teachers and thousands of other individuals in the developing world.

Thanks again to Dan Bricklin for taking the time to talk to WhatIs.com.


May 22 2008   11:55AM GMT

What is the missing link of integrated circuitry? The memristor!



Posted by: Alexander Howard
Storage, hardware, Technology, innovation, education, learning, invention, conversation, fundamentals, history, memory

The discovery of Thursday’s Word of the Day, memristor, has been theorized about since 1971, when the possibility for a fourth fundamental passive circuit element was first described. The invention, fully described in a Nature article on memristance, The Missing Memristor Found, has thrown the science of integrated circuitry into a bit of…. flux.

[Image Credit: IEEE's Spectrum]

Ok, terrible electrical engineering joke. Leon Chua (the scientist who first hypothesized about the memristor back in the seventies), as quoted by Margaret Rouse in Overheard in the Blogosphere:

“Electronic theorists have been using the wrong pair of variables all these years–voltage and charge. The missing part of electronic theory was that the fundamental pair of variables is flux and charge. “

Read HP’s Memristor FAQ for more information.

NPR’s Science Friday recorded a terrific show on May 9th on the discovery. From the shownotes:

Introductory classes in electronics are big on circuit diagrams involving different combinations of resistors, capacitors and inductors. Now, researchers say that they have discovered a fourth fundamental passive circuit element, one that complements those well-known three and fills in a gap in the basic equations that describe the relationships between voltage, current, and magnetic flux. The possibility of such a circuit element, known as the ‘memristor,’ was first described in 1971, but until now no one has found a device with the properties of that missing element. A group of scientists at HP Labs found that in nanoscale materials, however, the ‘memristance’ property becomes easier to see.

The find could lead to lower power, instant-on computers, as well as novel types of circuitry. We’ll talk with one of the discoverers of the modern memristor about the find and its potential applications.

Listen to the memristor show on at ScienceFriday. com or download the MP3 directly to your hard drive. You can subscribe to the Science Friday podcast there as well.


May 19 2008   10:29AM GMT

What is the future of the Internet?



Posted by: Alexander Howard
Networking, Web 2.0, data, Technology, Internet, commentary, education, college, learning, courses, academics, books, futurism, event, copyright, collaboration, forum, wiki, conversation, community, information, election, blogging, communications, law, government, conference, Berkmanat10

Do you think much about the future of the Internet? Last week, the academics and technologists who consider the matter professionally gathered at the Berkman Center at Harvard Law School in Cambridge, Massachusetts to hail ten years of achievement in cyberlaw and digital activisim . Check out this timeline to see how the Berkman Center has grown.

[Download a special report on 10 years at Berkman (PDF)]

Berkman at 10 combined conference with celebration, as Harvard professors, staff, alumni and guests convened for sessions that included presentations from distinguished professors, a discussion with the co-founder of Wikipedia, a panel featuring Viacom’s general counsel, a former FCC chairman and venture capitalist Ester Dyson — all within the course of the first day. Dinners, sessions in the style of an unconference, a talk about the future of journalism from TalkingPointMemo’s Joshua Micah Marshall and seminars that addressed net neutrality, netizenship and much more continued the second day, followed by a gala that honored the achievements of those who have made outstanding contributions to the Internet’s impact on society over the past decade. Winners included the founders of MideastYouth.com, Connexions, FreeRice.com, PublicResource.org, Worldspace.com. Highest honor went to Jeffrey Cunard and Bruce Keller for their pro bono work.

[Watch the archived webcasts of Berkman at 10]

The men and women considering the future of the Internet used the medium itself to meet, greet, intermingle and collectively think about the topic at hand. As you might expect at a conference packed with cyberluminaries, computer scientists, engineers, journalists and assorted digerati, the two days were an exercise in hyperconnectivity. Conferees listened in the audience, watched live video feeds from overflow rooms or participated remotely using uncommonly robust social media tools.

“The question is not freedom of speech, the question is freedom *after* speech.”
- Esther Dyson, quoting an unnamed Russian

The Berkman Center created a Berkman at 10 wiki where you can find much more information about the conference, its agenda, attendees, the sessions and the Center itself. Projects founded, funded or organized by Berkman and its Fellows have been far-reaching in their influence and are frequently grounded in the entrepreneurial focus and intellectual rigor of its founders. They include:

  • Open Net, which investigates and analyzes the various filtering and surveillance practices around the world.
  • The Publius Project, which features essays and conversations about constitutional moments on the Net.
  • Global Voices Online (GVO), which focuses on highlighting global conversations in blogs that exist outside the world of TechMeme, the “A-list” and Silicon Valley.
  • A new project of GVO is Voices Without Votes, which covers what is being discussed about the US elections throughout the world’s blogs.
  • StopBadware.org, which identifies Websites infected with spyware or malware and, with Google’s help, interjects warnings when users try to access them.

The conference was kicked off by the Dean of Harvard Law School, Elena Kagan, who announced that the Berkman Center for Internet and Society now a university-wide research center at Harvard. She also urged the crowd to lobby Jonathan Zittrain to come back to Harvard and led an impromptu chant to urge him to consider the invitation. Professor Nesson, cofounder of the Berkman Center, then introduced Professor Jonathan Zittrain, aka “JZ,” to the conference.

Professor Zittrain’s thesis is that the “generative Internet,” the combination of a programmable computer and an open, “writable” Internet, is in danger from tethered appliances like the iPhone and TiVo or walled gardens of non-portable data like Facebook. Doc Searls posted the following graphic within his “Understanding Infrastructure” article for Linux Journal:

In the PC and the network, the narrow point in the hourglass is where the generative power rests, in the Internet Protocol and the operating system. During the session, Zittrain repeatedly referred to this power as the “dark energy” of the Internet and raised concerns that the means to contribute could gradually be abridged or blocked in the future by corporations or governments through changes in the network or locking down the OS. The iPhone and other appliances like the Chumby or XBox are examples of the latter.

Further thoughts and analysis of the session can be found from Ethan Zuckerman, David Weinberger, Patrick Philippe Meier, Andy Sellars, Daithí Mac Sithigh, Dan Farber and Jim Rapoza. Zittrain’s book, “The Future of the Internet,” is available at futureoftheinternet.org.

Professor John Palfrey, the executive director of the Berkman Center, followed with a session on the impact of the Internet on politics and democracy. The presentation reached much further than the U.S. Presidential election, though the impact of YouTube, socially networked fundraising and the netroots has been far reaching domestically. He also presented three crucial arguments, each of which may be viewed and commented upon related ideas at the wiki at Berkman and is quoted below:

  1. The Internet allows more free speech from more people than ever before, but states are finding ways to filter and limit that speech.
  2. There is greater autonomy of the individual because of the Internet.
  3. The formation of online groups will alter the form and function of existing organizations and institutions with unknown impacts on democracy and governance.

Palfrey’s talk reflected many of Zittrain’s concerns: the very openness and disruptive change that a generative Internet presents for free speech may be dangerous enough to repressive regimes that technological steps, like the Great Firewall of China, may be taken to limit access or the ability to publish freely.

Palfrey presented a map of the Farsi blogosphere (above) and noted, however, that the Iranian blogosphere is the fourth largest in the world, including a range of conservative, religious, secular and liberal views. The map was produced by John Kelly and Bruce Etling for their paper, “Mapping Iran’s Online Public: Politics and Culture in the Persian Blogosphere.

One of the more intriguing notions that came out of the session was the concept of “flashdrive democracy,” where Palfrey used the example of Cuban dissidents who smuggled contraband video of student protests out of Cuba using a sneakernet and published them to YouTube.

Session notes are available from Professor Palfrey. More analysis and notes from David Weinberger’s post, Micah Sifry’s post and Daithí Mac Sithigh’s post.

In the third session of the day, Yochai Benkler, professor and author of the Wealth of Networks, interviewed Jimmy Wales, co-founder of Wikipedia. The two men deconstructed the sprawling online encyclopedia and discussed different models of peer production.

Dan Farber reported on the session and posted a transcript of Wales’ remarks on his blog. Adam Oran also wrote at length about this session at Radar.OReilly.

“The threat is not the money, the threat is the authority over knowledge.”
- Yochai Benkler

The links above are far from the only reactions to the sessions, of course. See the Center’s collection of online coverage of Berkman at 10 for more information about the unconference, panels and seminars.

Throughout the conference, participants near and far chatted over IRC, Twittered about memorable moments or useful links and used a dynamic online question tool as a live discussion board during each presentation. Hallmark technologies of “Web 1.0″ like IP, IRC, HTTP, WWW and HTML were enhanced by social media from the Web 2.0 world, like blogs, wikis, RSS feeds, microblogging and live videoblogging. Conference participants chatted live there on the IRC channel or in the virtual 3D hall on the Berkman Center’s island in Second Life. Some participants, however, still passed notes.

Berkman at 10 was chronicled using what Professor David Weinberger might term a folksonomy, a user-defined taxonomy for classifying digital content. Participants assigned digital content to the Berkman folksonomy on whatever platform they were publishing to using a #Berkman hashtag or “Berkmanat10″ tag or category.

Here are the different aggregations.


Apr 23 2008   9:27AM GMT

Better Education Through Open Source Robots



Posted by: Alexander Howard
open source, fun, cool, education, learning, courses, academics, design, invention, robotics, creativity, downloads, collaboration, tutorial, howto, blogging, fundamentals, artificial intelligence, conference

Heather Johnson is guest blogging at WhatIs.com this week. Heather is a freelance writer, as well as a monthly contributor for OEDb, a site that helps students select among accredited online schools. She invites comments and freelancing job inquiries at heatherjohnson2323@gmail.com.

There has been a lot of talk about open source hardware lately and its potential effects on research and education. ETech 2008 showcased many examples of open hardware and offered an insightful presentation [PDF] to those who are new to the emerging technology. Likewise, popular sites like Slashdot and bloggers like Scobleizer have been discussing the growing movement.

The increasing popularity of open source software has already had a tremendous influence on education and the world as a whole. Not only are many schools now making the switch to open source programs, leading universities like UC Berkeley and Carnegie Mellon are involved with developing large open source software projects.

A Scribbler Robot with BluetoothHowever, we have yet to see open hardware really take off. Ryan Singel of Wired feels that 2008 could be the year and I second that opinion. Leading the pack seems to be open source robotics, which has been embraced by several major universities.

Just last month, Willow Garage’s Steve Cousins gave a keynote speech at ETech 2008 about open source personal robots, which has brought more attention to the subject. Willow Garage is a privately funded lab that experiments with various robotics platforms.

This open source robotics movement can be felt on many college campuses as well. Carnegie Mellon, which I previously stated is involved with open source software, is also building OS personal robots. The university has recently formed a joint project called the Institute for Personal Robots in Education (IPRE).

The IPRE is a joint project between Georgia Tech and Bryn Mawr College, with sponsorship provided by Microsoft Research. Its purpose is to help advance robotics research and computer science education. The IPRE is currently selling open source robot kits, which are geared toward educators and can be integrated with computer education curricula.

Instructions can be found RobotEducation.org if you are interested in building your own educational robot.

[Image credit: RobotEducation.org]


Mar 14 2008   1:40PM GMT

Happy Pi Day!



Posted by: Alexander Howard
fun, culture, education, learning, event, GeoRSS, math, humor, history

Yes, today is March 14, 2008, abbreviated as 3.14. Mathematicians everywhere celebrate today as Pi Day.

You can join the fun over at PiDay.org.


Mar 6 2008   2:35PM GMT

Video: Twitter in Plain English



Posted by: Alexander Howard
messaging, Mobile, Web 2.0, media, video, YouTube, new media, Internet, multimedia, commentary, cool, culture, education, learning, interesting, resource, participation, wiki, screencast, conversation, community, interactive media, widgets, tool, mashup, howto, trend, social networking, blogging, buzz, fundamentals, communications, word meanings, geek

CommonCraft.com is already well known in the blogosphere and social media world for creating brilliant, lucid short videos that explain tricky concepts.

The two-person team that make up CommonCraft (Sachi and Lee LeFever) put it simply: they solve explanation problems.

I love that tagline. It’s rather similar sort of thing we try to do here at WhatIs.com. To that point, I’ve embedded three of CommonCraft’s previously released videos on our site, each of which explore and explain a different social media technology:

The newest addition to the mix is a video explaining what Twitter is and how it works.

As you may know, Twitter is a popular microblogging service that launched almost exactly one year ago at the SXSW Music Festival in Austin, Texas. While we’ve blogged about it right afterwards. Due in no small part to the high percentage of geeks and “digerati” at the festival who had the opportunity to try it out and start networking with each other, Twitter really took off. Twitter is now a leader in the “social messaging” category that includes Pownce and Jaiku, spanning the gap between our online and offline worlds. Each allows users to update a microblogging service using SMS messages, a Web interface or a desktop application. (Twitter relies on third party apps for the last based upon its APIs. Try Snitter if you have Adobe Air installed.)

CommonCraft’s video sheds worthwhile additional insight. Watch it below:

There’s plenty of interesting activity going on out there, too. Just check out this mashup of Twitter, Google Maps and live election results for intriguing insights into the 2008 presidential primary season.

And if you’d like to find/follow me on Twitter, head over to http://twitter.com/digiphile.


Sep 24 2007   12:41PM GMT

Watch the Catsters on YouTube and learn about monads, math and functional programming



Posted by: Alexander Howard
programming, video, YouTube, education, courses, free, fundamentals, languages

Ok, I admit it: calculus is now officially a decade in my past. Math, or “maths,” as the Brits put it, however, is very much in my present, considering the importance of algorithms to modern life. (For more on that, just review this thread on the growing public awareness of algorithms over on Slashdot.)

One mathematical concept that’s worth mastering is the monad. Monads, in the context of functional programming (as opposed to pure mathematics), are a useful way of expressing input/output (I/O) operations and changes in state without using language features that introduce side effects. Monads are useful in any situation where a programmer wants to carry out a purely functional computation while a related computation is performed externally. Monad also, by the way, was the codename for Window’s Powershell before it was launched, a nod to the use of monads in that highly functional scripting language.

Make sense?

If that explanation still doesn’t suffice to explain what a monad is, never fear: The Catsters have posted a series of videos on YouTube to help you master the concept!

Monads 1: An introduction to monads, including the definition and a look at the monoid monad.

Monads 2: Continuation of the monoid monad example and introduction of the category monad.


Monads 3: The definition of algebras for monads. The example of monoids as algebras for the monoid monad.


Monads 4: An appendix to Monads 3: more on monoids as algebras for the monoid monad.


Monads 5: Morphisms between algebras and the category of algebras. A first look at the question of monadicity.


If, after viewing, you’re still a bit curious about monads and programming, try Noel Winstanley’s “What the hell are Monads?” MenTaLguY also explains monads in the context of Ruby, escaping the need to work with Haskell.

Hat tip goes to the n-Category Cafe for the discovery!


Aug 27 2007   12:26PM GMT

Facebook: A social network evolves into a social utility



Posted by: Alexander Howard
Security, business, applications, Web 2.0, programming, data, new media, Internet, innovation, culture, education, college, public domain, portal, social publishing, interesting, creativity, Silicon Valley, entrepeneurship, startup, collaboration, community, social, discussion board, mashup, trend, social networking, directory, buzz, privacy, Web applications, buzzword, recruiting

What can I say about Facebook that hasn’t been said? Newsweek has placed Mort Zuckerberg, the founder of the social networking giant on its cover. And the press has been hyperventilating about Facebook for months.

So what is Facebook? It’s a simple idea, done well: move the “facebooks” of incoming college undergraduates online, with headshots and interests constituting a basic profile, and then create the tools for nodes on the network to interact and browse each other’s profiles.

It’s also my “latest discovery,” as I joined earlier this spring, egged on by a neighbor. Back when I went to college, we had such a thing, printed on “paper,” bound and distributed to the freshman class (and just as quickly appropriated by upperclassmen frequently interested in more than discovering who else was into rock climbing or Pearl Jam). Facebook was, at its inception, a social network for college students, with access limited to only students in the same institution. Now, Facebook has laid claim to being a “social utility,” bidding to become the platform or framework we use to organize our online lives.

Audacious, perhaps, but not unprecedented. Friendster had the early start in filling that role but never recovered from an inability of its original technical architecture to scale to massive traffic demands or challenges from MySpace and other networks.

To be fair, over the past spring and summer, the social networking phenomenon has continued to explode in popularity and innovation, but Facebook has grown much faster and pulled in the digerati like no other.

Why? There’s no single reason. While the decision to open the formerly closed network to the Internet at large is an obvious place to begin, instead of limiting membership to isolated pools of collegians, other factors are in play. Making APIs available to developers resulted in a tsunami of applications that help to further interconnect nodes within each social network has attracted enormous amounts of energy (and, increasingly) venture capital to the platform.

Choosing to keep a clean, easily navigated interface has mattered as well. While MySpace is still the biggest social network — and by most measurements, the most popular site on the Internet, the contrast between the two services couldn’t be much larger, aesthetically, as Facebook (by comparison) radically limits the visual control a user has over a profile. It doesn’t hurt that all of the young college graduates enter the workforce with profiles, either.

If you need a sense of how bound into the tech community Facebook has become, consider how Silicon Valley reacted to a recent Facebook outage.

There’s plenty of evidence too that spending time on Facebook has also evolved into a significant productivity drain (though some disagree) and security risk. (If you’re wondering which companies lead in embracing Facebook, along with the most risk, just read Elisa’s post). The trouble is that sysadmins with itchy trigger fingers may not be able to quickly shut off the flow of bandwidth by firewalling Facebook. Unlike other more informal networks, many professionals have been using to “friend” their coworkers, clients and collaborators, along with former college roommates and dorm buddies. While LinkedIn has long been the social network of choice for many professionals, Facebook has begun eating into that market. In the online social media world, the gaps between online and offline networks are continuing to close, along with whatever space remained between work and personal lives.

Netizens my age (proud members of the “XY generation” that bridges the gap between Gen X (children of the 80s) and Gen Y (folks who don’t remember life before CDs and email or who said “trust but verify“) and older may find some elements of Facebook surprising, though perhaps not more so than MySpace. Older users are joining, however, and finding a place. While privacy options for profiles exist, unlike MySpace, there’s significant potential for embarrassment and even calamity for college or career prospects for those who aren’t wary about posting photos or blog entries that don’t put them in a good light, to put it mildly. PR professionals and marketers would do well to consider the advice of social media gurus. And, as neighborhood applications crop up, there are also alarming security concerns regarding personal safety and property, given that clever criminals can posit where and when individuals are away.

While much of the value of joining these networks can be found in keeping touch with friends and alumni — and making new ones from within that social network — the amount of information that many people are adding to their profiles has also been identified as a valid phishing risk, with significant potential for social engineering hacks that allow access to corporate networks.

What to do? As is the case with the rest of the Web-based applications that have made their way into enterprise and personal desktops alike (users keep outwitting IT when installing consumer apps, apparently), the key is likely to be adaptive security policies that both recognize the increasingly blurred boundaries between work and personal life while respecting both the bandwidth limitations high usage may inflict upon a network and the need to limit the leak or theft of potentially damaging proprietary or personal data. No one is suggesting that developing, implementing or enforcing such a policy is easy, but the consequences of failing to try may extend well beyond a public relations disaster to the organization or individual who doesn’t consider Facebook to be a risk.

There are also no shortages of critics who view the closed nature of Facebook with some distaste — “yet another profile to populate” is a new form of fatigue in the digital age. Personal data portability may become a online movement. It’s certainly been the inspiration for a business plan or two. The founder of LiveJournal, for instance, has published a mini-manifesto for portable, open social networking, according to Mashable. (It may help that Google appears to be backing him). Other observers have noted that Facebook hasn’t been proven to be a rewarding platform for advertisers yet either, though the model is still evolving, as described in this excellent article from Business.com, the Facebook Economy.

In the meantime, I’ll enjoy watching classmates and friends pop up on Facebook; lest you wonder, you can find me there as well. Be warned: I’m sticking with adding friends, coworkers and neighbors, lest I develop social networking fatigue myself.