About Harrison Baker

Harrison Baker works as an aquarist at Oregon State University's Hatfield Marine Science Center. His academic background is in animal husbandry, journalism and editing. He is currently pursuing an MS in Free-Choice Learning Science Education. His board game, Deme, is currently under development as a component of his MS project on games and adult learning.



We received a very informative site evaluation from a surveillance camera expert today. Among other things, we learned that we don’t need pan-tilt-zoom functionality for most of our applications. With some clever placement, our exhibit space may not be as difficult to capture as we previously thought.

One problem—from the perspective of face detection and recognition—is the fact that many exhibits are along the walls of the Visitor Center. This is a common feature of many museums, but it means that simply throwing a camera into a convenient corner might be ineffective unless we acquire software to recognize back-of-head expressions. Our other exhibits, such as the touch pool and large display tanks, could block our view of visitors from several angles. These inherent problems can be circumvented with careful camera placement and a front-door camera to register each visitor upon entry. It certainly helps to bring in the professionals for this sort of thing.

Our Octocam – the underwater web cam in our Giant Pacific Octopus tank – has gone through various iterations as they serially succumb to seawater exposure. Our current camera is not adequate in image or tank stability. We spent some time today experimenting with a new camera mounted outside the tank, and it actually works just as well as a submersible camera. Naturally, an external camera would also eliminate concerns about maintenance, housing integrity, running electrical and ethernet cables underwater and the fact that metal is toxic to octopuses should a waterproof component fail. The camera will still be exposed to occasional bumping and climbing, albeit by creatures of a different phylum.

This post by Nina Simon raises some great, eternal questions about visitor engagement.  Free-choice learning, by definition, entails agency on the part of the learner.  What’s the best way to allow and inspire visitors to provide input and exercise that agency?  Simon states the problem well:

“The fundamental question here is how we balance different modes of audience engagement. You could argue that visitors are more “engaged” by an activity that invites inquiry-based participation than one that invites them to read a label, even if they never get answers to their questions. Or, you could argue that this kind of active engagement should be secondary to sharing information, which can be more efficiently communicated by a label.”

In other news, the Magic Planet has finished its first round of upgrades.  We’ll be doing more work with it next week.

Today we met with a consulting engineer to puzzle out the basics of our wave tank. We’ll use the wave tank for two main purposes: modeling tsunami damage and demonstrating wave energy buoys. This means we’ll need to create both breaking waves and swells. This may entail two tanks or a convertible system of some sort.

The wave energy element of the exhibit will use working scale-model wave generators with LED lights to show the output. What better way to demonstrate wave energy than to actually let visitors produce it and see the results? We’ll be able to use this setup to host student design challenges, wherein participants engineer and test their generator arrays for power and efficiency.

We expect visitors (and ourselves) to have a lot of fun with the tsunami modeling aspect of the wave tank. This will feature scale-model buildings and a shore on which waves can break. We’re still exploring the design possibilities. This part of the exhibit will also lend itself to design challenges, as visitors and students will create buildings to test their tsunami resistance.

Tsunami modeling has immediate implications for a town like Newport, which sits right next to an offshore fault. Here at HMSC, we’re at sea level. Regular drills and the presence of emergency supply “bug-out bags” on the walls ensure that everyone here has at least an imagined scenario of what he or she would do in case of a quake. Pat Corcoran is our coastal natural hazards extension agent, and he has lots of info on the subject of “The Big One” and how to prepare.

When the earthquake hit Japan earlier this year, folks on the Oregon coast learned how real this scenario could become. For those of us on the Oregon coast, the local evacuations were a wake-up call. In Japan, the nightmare continues. We imagine great disasters befalling “other people,” but actual disasters tend to remind us that there are no “other people”—only some of “us.” Nobody is immune, and nobody is untouched.

With this unsettling fact in mind, why do we so enjoy the concept of using model waves to smash a miniature coastal town not unlike our own? Back in my own home state of Florida, why do visitors enjoy “Disasterville” at MOSI? Why bring to mind the things that frighten us most? We do so for the same reason we watch horror movies, ride roller coasters or listen to Slayer. That is, as long as we have popcorn to eat, a lap bar to hold us in our seats or a buddy to pull us out of the mosh pit, we can look down upon danger and laugh. We banish the ugly and the frightening to the realm of fiction, if only for a moment. If we learn something useful in the process, all the better.

We are taking measurements for the wave tank as we speak. Getting the mechanics right will be a bit of a challenge within our exhibit space. We went over to The Hinsdale Wave Lab on Thursday to look at their tanks and discuss the physics. Nothing replaces talking to the experts—we learned a lot. The challenge is to create a properly scaled environment with properly scaled waves. It’s just a matter of figuring out how to create a realistic model with a maximum length of 25 feet. Easy as that.

We’re considering some major upgrades to the Magic Planet, which will prepare it for the upcoming work we will do with a larger remote sensing exhibit space. Greater luminosity and a more robust cooling system will be huge enhancements and mitigate some maintenance issues.

The hunt for an ideal eye-tracking system continues, but we are getting close to what we want. Apart from how accurately and elegantly a system tracks eye movement, we must consider how it collects and exports data. Stay tuned in the coming weeks for the conclusion of Katie’s eye-tracking adventure, which she began in the last post.

In the meantime, we now have a Twitter feed: @FreeChoiceLab

 

I found this interesting New Scientist piece the other day:
http://www.newscientist.com/article/dn21040-avatars-with-your-body-language-get-your-point-across.html
As these sorts of technologies become more common and affordable, what does this mean for interactive exhibits and remote visitor observation? Are people more comfortable with the notion of being “watched” by cameras today than they were 10 years ago?

Thanks to a very generous Informal Science Education grant from the National Science Foundation, the Free-Choice Learning Laboratory will soon be experimenting with some very promising emergent technologies. These technologies—soon to be integrated into our research space here at Oregon State University’s Hatfield Marine Science Center Visitor Center (HMSCVC)—include facial recognition, eye-tracking and augmented reality systems. RFID cards will allow visitors to opt out of these measures. We’re also looking to collaborate with outside researchers through our visiting scholars program.

To make use of these potent data collection tools, we will establish three new exhibits as research platforms:

1. Interactive climate change exhibit: This exhibit will ask visitors to share their own experiences and knowledge. The data collected by the exhibit can then be used to study cultural cognition and the underlying values of visitors.

2. Wave tank and engineering challenge exhibit: The hands-on, interactive wave tank will let visitors explore wave energy, marine structural engineering, and tsunami education. This platform allows for the study of hands-on STEM activities, as well as social dynamics of learning.

3. Remote sensing data visualization: The “Magic Planet” spherical display serves as the centerpiece of our remote sensing hall. We will redesign the 500-square-foot gallery space around the Magic Planet to update exhibit design and content, and to incorporate our new evaluation tools. This research platform allow for the study of complex visualizations, decoding meaning, and personal data narratives, including having visitors collect, analyze and visualize their own remotely sensed data.

A lot of preparation is underway, specifically around building the wave tank exhibit. We are also starting to explore a number of tools that will be used in the lab. Laura Dover has been exploring the potential ‘subject eye view’ of a head-mounted Looxcie camcorder—”the Borg camera,” as we have come to know it. We’ll post more about this as Laura’s work progresses, but she has already “assimilated” some volunteers, whom she put to work trying out the camera. The results are promising.

On a related note, the new OctoCam went online this week after our last camera succumbed to a year in seawater. The streaming underwater Octocam gets an overage of 12,000 viewers a day from all over the world. Ursula, our resident E. dofleini, responded in her usual manner by stuffing it into her mouth and trying to destroy it. She has not succeeded. A large octopus—by nature immensely strong and irrepressibly curious—is a good durability test for submersible equipment.

We’re also refurbishing the Magic Planet, our 3-foot spherical projection system capable of presenting global data realistically on an animated globe. The original projector has long since ceased functioning. Our tech team is installing a new projection system as well as redesigning the mounting and image centering systems. It’s quite a task! We are looking forward to installing Michael Starobin’s new movie “Loop” for our winter visitors.

In general we are evaluating our evaluation tools, drawing up plans and falling into a productive rhythm. We look forward to your feedback in the days and months to come.