Tag: reflections

Mika and I will be traveling this winter in the Seattle area and in Japan. The current plan is to be in Seattle December 19 through 28 and then in Japan from December 28 through January 12. After that, we will fly back to Boston for the MIT Mystery Hunt where, as punishment for winning last year, our team is running this year’s hunt.

We will be in Tokyo for New Years and then traveling around Japan for much of the rest of the time. We hope to visit Hokkaido and Aomori and to travel there from Tokyo along Japan’s Western coast through Kanazawa and Niigata.

We’re still figuring out where we will visit and what we will do in both places. If you are interested in meeting up for dinner or drinks in either place (or in organizing a talk or meeting), please get in touch and let’s try to figure something out.

AndroidZoom, along with just about every other third-party interface to the Android Market out there, provides 2D barcodes which aim to make it easy to install Android applications that you find online on a phone. Maybe this would be a nice feature for F-Droid?

Unfortunately, I found this feature when I was trying to help a friend install the (free software) ZXing Barcode Scanner because they wanted to read a 2D barcode.

A few years ago, I ran into my friend Jay in the MIT Infinite Corridor. He was looking for volunteers to have their pictures taken and then added to the library of freely licensed and remixable media that would ship with every version of Scratch — the graphical programming language built by Mitch Resnick’s Lifelong Kindergarten group that is designed to let kids create animations and interactive games.

Jay suggested I make some emotive faces and I posed for three images that made the final cut:

But although I’ve spent quite a bit of time studying the Scratch community in the last few years as it is grown to include millions of participants and projects, I forgot about about Jay’s photo shoot.

A couple months ago, Acetarium resident Andres Lombana Bermudez pointed out that there was a mako tag on the Scratch website and that a whole bunch of users had been publishing projects using the pictures of me which, apparently, shipped in Scratch under my name. For example, in this project in which I dance in front of a enormous "MAKO" banner:

That said, given the rather emotive nature of the pictures, I seem to usually end up being blown up shot, shrunk, set on fire by dragons, or meeting other similarly unfortunate ends.

There’s quite many more entertaining examples under the tag and many more elsewhere on the Scratch website although they are a little trickier to track down.

Jonathan Zittrain likes to say that the best technologies are generative in the sense that they encourage their users to make things with them that the designer never forsaw or anticipated. I feel generative.

  by  nffcnnr 

I am haunted by the nagging fear that I have mailboxes, tucked into a dark corner of an office somewhere, and perhaps even full of checks and important documents, that I don’t know exist.

In the Peabody Essex Museum a couple weeks ago, I saw a beautiful landscape by Albert Bierstadt of Donner Pass whose label referenced the famous Donner Party of 1846 and their, "sensational story of privation, cannibalism, and death." I would reorder that sentence.

SeeClickFix makes a mobile application you can use to report Boston drivers using their smartphones while driving, while driving.

When you care for somebody, it is difficult to tell them "no." When you trust somebody, you will tell them.

  by  jonasclemens 

Much of my academic research involves statistics and crunching through big datasets. To do this, I use computer clusters like Amazon’s EC2 and a cluster at the Harvard MIT Data Center. I will frequently kick of a job to run overnight on the full HMDC cluster of ~100 computers. Some of my friends do so nearly every night on similar clusters. Like many researchers and engineers, it costs me nothing to kick off a big job. That said, computers consume a lot of energy so I did a little back-of-the-envelope calculation to figure out what the cost in terms of resources might add up to.

An overnight job that uses a 100 computer cluster might use 800 computer-hours. Although power efficiency varies hugely between computers, most statistical analysis is CPU intensive and should come close to maximizing power consumption. According to a few sources [e.g., 1 2 3], 200 watts might be a conservative estimate of much a modern multi-CPU server will draw under high load and won’t include other costs like cooling. Using this estimate, the overnight job on 100 machines would easily use 160 kilowatt hours (kWh) of energy.

In Massachusetts, most of our power comes from coal. This page suggests that an efficient coal plant will generate 2,460 kWh for each ton of coal. That means that one overnight job would use 59 kg (130 lbs) of coal. In the process, you would also create 153 kg (338 lb) of CO2 and a bit under half a kilogram (about 1 lb) of nitrogen oxides and sulfur dioxide each. It’s a very rough estimate but it certainly generates some pressure to make sure the research counts!

Of course, I’ve written some free software that runs on many thousands of computers and servers. How many tons of coal are burnt to support laziness or a lack of optimization in my software? What is the coal cost of choosing to write a program in a less efficient, but easier to write, higher-level programming languages like Python or Ruby instead of writing a more efficient version in C?

The Acetarium, where I live, runs what we like to think of as the world’s smallest artistic residency program by hosting artists, social scientists, hackers, and free software and free culture folks for periods of 1-3 months.

Our most recently graduated resident, Noah, built a lawn scrabble set on the Media Lab ShopBot and held a Scrabble picnic this weekend with some former Acetarium residents and others. I don’t really like playing Scrabble, so you can see me working on an essay (and verifying words) in the background.

Thanks to Ben Schwartz as I yoinked these pictures from his blog.

At the Copenhagen airport, Mika and I found the quiet room. It was a soft, well lit, room designed for prayer and reflection. During the hour I was in it, the only other visitor was a child cracking open the doorway to peer in. The room had a guest book with hundreds of messages left by other travelers over the last couple years. People praised the airport administrators for providing the room, made suggestions, and complained about the room, the airport, and the country’s shortcomings. They talked about themselves, their travels, their happiness and unhappiness with departing or returning home, and their thoughts about the world.

I spend a lot of time in airports but only rarely speak to my fellow travelers. It’s amazing how little I know about the thousands of people waiting in line with me, sitting near me on the plane, and sharing in the long, lonely, and often stressful experience of moving between countries and continents. The guest book provided a rare window into these people in what is normally the anonymous and depersonalized non-place of airports. In the quiet room, I could — for the first time — hear some of these fellow travelers speak.

Before heading back to graduate school, my brother worked full-time as a personal fitness and strength trainer. Like many trainers, he started out in an established gym and then struck out on his own once he had established an clientele base. Working on his own, he got almost all of his new business from referrals.

Although one might think that a trainer’s trusted long-term clients would be the source of most new business, it was mostly the newer, less established clients who referred new trainees. The established clients had already referred everyone in their social network that might be interested.

That’s how I learned about the weak ties of strength.

At LCA in Wellington — immediately after a trip to Japan where I saw sumo for the first time — a number of us created a game we called "monopedal sumo." Basically, the rules are those of sumo wrestling. Push your opponent either down or out of a ring before they do so to you. Unlike normal sumo, in our game you do so standing only one one leg. If your second leg touches the ground. That also counts as a loss.

It’s surprisingly entertaining. Try it!