Author Archives: Katie Stofer

About Katie Stofer

Research Assistant Professor, STEM Education and Outreach, University of Florida PhD, Oregon State University Free-Choice Learning Lab

Some last thoughts (for now?) from Diana

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Our Summer Scholars’ time is drawing to a close at the end of the month, so we’re hearing some final words, at least for the moment, from some of them, starting with Diana:

“These past weeks have been filled with things that I never thought would happen and have surprised me in the most spectacular ways.  First, I went on vacation to Vancouver, BC and Seattle, WA which was a memorable experience.  I was able to see behind the scenes tanks and animals at the Vancouver Aquarium and even got to see Leonardo Da Vinci’s works in person as well as King Tutankhamen’s burial chamber items.  This vacation was a nice break from the craziness of the visitor’s center and refreshed me for another few weeks as an education intern.  The moment I returned many volunteers and other workers at Hatfield were asking about my vacation.  Even this little thing made me feel fully welcomed into the Hatfield family.  One of the first things that occurred when I returned was that many unannounced summer camps came into the visitor’s center which is always an experience.  Yet, one of the most progressive things I did was creating new signs for me shoreline erosion tank.  This time one of my mentors Mark Farley and I created 2 different signs compared to one long sign.  One sign said “The Erosion Problem” with photos of me showing how to use the paddle to create waves and see the erosion of the sand.  The second sign said “The Erosion Solution” and gave the visitors a chance to try 1 of 3 different protective strategies for beach/shoreline erosion.  These new larger signs seem to be working well for now.  I can already see a difference in the behavior of children and families when they come to wave tank; instead of sand castle building, they actually read the sings and follow the directions.

The visitor’s center also had some crazy moments.  We had Micro A and Micro B tanks overflow into the VC overnight and leave a lake in the surrounding area an inch deep.  That lake was an interesting mess to clean, but created a wonderful learning moment.  I was able to watch the aquarists and learn how to put on new filter bags as well as rework the tanks.  I was challenged to follow the pipes and figure out where the water went such as the outflow and inflow pipes.  Other crazy moments that occurred were people trying to put their whole hand inside of anemones or trying to crawl inside of the touch tank to touch the different fish.  While all of this was going on I also got to have some spectacular moments in the VC.

These spectacular moments occurred when the Aquarists took me under their wing and showed me some impressive things.  First, I got to see a fish necropsy which was highly informative and taught me new dissections skills.  I was also taught how to kill invasive coral apitasia with lemon juice.  I was able to inject a few micrometers of lemon juice into each invasive apitasia, which kills it almost instantaneously.  The apitasia tries as a defensive mechanism to spit its own guts out, but the lemon juice is too acidic.  I also learned through this process how to siphon a tank and change out the water while balancing the acidity in the water with baking soda, thus making the seawater more neutral.  Yet, the most spectacular thing I learned with the aquarists was how to feed all the animals in the Hatfield Marine Science Center.  I learned how and what to feed each animal except the octopus in the visitor’s center, which took a long time but was completely worth it.  The amount of knowledge I learned during that time was amazing and I will not forget anytime soon.  This entire summer has been a learning experience, but definitely a fun one that I shall remember for the rest of my life.”

 

Busy week, weekend, month!

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Sorry I missed posting on Friday; I’ve been frantically trying to get ready for my two upcoming conferences, as well as collecting some data last-minute (yay) with some subjects that let’s just say treated scheduling a bit flexibly. My schedule of deadlines in this last week has been:

Aug 14 Geological Society of America abstract deadline – they have a session on eyetracking in the geoscience education section. Digital posters, which means we can show real eyetracking data. Good folks for me to meet in particular.

Aug 15 NARST 2013 proposal – I ended up skipping this; it will just be too much too close to when I’m trying to defend, plus I didn’t have a great proposal to go along with this year’s theme of inequality. Puerto Rico would have been awesome, though. I did get a proposal in in July for AERA instead, which is much closer to home in San Francisco, though even closer to my defense time!

Aug 15 final paper due for the International Science Communication Conference (JHC) – involved getting some friends to translate my abstract and keywords into French, of which I speak about 6 words, none of them “eyetracking.” Presentation was due in July.

Work on a presentation with Shawn and Laura for 6-ICOM; we have an hour and a half between us, but don’t know the audience very well, so we’re hoping our idea of about 45 minutes of presentation and 45 minutes of interactive discussion goes over with them. We’re apparently about the only research group looking at multimodal discourse in learning in museums, and science learning in particular, so we’re not sure how familiar the others will be with why we’re studying what we are, for one thing. However, we should be able to have a good discussion about methods and analysis. We’ll be using Prezi which will allow us to make a record of the discussion and then share it after the conference. Plus we edited it together, which went well except for a couple minor mishaps.

Collect two interviews, one with a subject that contacted me Thursday after having been away and I managed to squeeze the interview in on Friday, and the other with a subject that missed the first appointment.

Aug 20 (tomorrow) leave for Europe for three weeks for two conferences – 6-ICOM and JHC (plus a week of vacation in between in which I try to swing by a museum research group in Germany that’s using mobile eyetracking).

So it’s been a little crazy. I’ve been lining up more of our lab folks to post more regularly as well, so you’ll be hearing more about the variety of projects we’ve got going on.

However, stay tuned to our twitter feed @freechoicelab, as I/we will be doing my best to live tweet from both conferences. Live being 8 or 9 hours ahead of the U.S. West Coast, so maybe you won’t be awake when we are, but still.

Ghosts in the machine

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Well, not literal ghosts, but blank spots. It seems we may be facing our first serious bandwidth issues with 28 cameras installed and plenty of summer visitors. Whatever the reason, we’re getting hiccups in our getalongs – cameras are randomly freezing for a few seconds to several minutes each, losing connection with the system, and generally not behaving correctly.

Today, for example, we were collecting images of ourselves from both the video cameras and a still digital camera for comparison of performance for facial recognition. As Harrison, Mark, and Diana moved from right to left along our touch tanks, only one of three close-up “interaction” cameras that they stopped at actually picked them up. It’s not a case of them actually moving elsewhere, because we see them on the overhead “establishment” cameras. It’s not a case of the cameras not recording due to motion sensing issues (we think), because in one of the two missing shots, there was a family interacting with the touch tank for a few minutes before the staff trio came up behind them.

This morning I also discovered a lot of footage missing from today’s feeds, from cameras that I swear I saw on earlier. I’ve been sitting at the monitoring station pulling clips for upcoming presentations and for the facial recognition testing, and I see the latest footage of some of the octopus tank cameras showing as dimly lit 5 a.m. footage. It’s not a problem with synchronization, either (I think): the corresponding bar image on the viewer that shows a simple map of recording times across multiple cameras shows blanks for those times, when I was watching families on them earlier today. However, when I look at it now, hours later, there don’t seem to be nearly as big of gaps as I saw this morning, meaning this mornings viewing while recording might have just delayed playback for some of the recent-but-not-most-immediately-recent footage at that time, but the system cached it and caught up later.

Is it because some of the cameras are network-powered and some are plugged in? Is it because the motion sensitivity is light-sensitive, wherein some cameras that have too much light have a harder time sensing motion, or the motion sensitivity is based on depth-of-field and the action we want is too far afield? Maybe it’s a combination of trying to view footage while it’s being recorded and bandwidth issues and motion-sensitivity issues, but it ain’t pretty.

From sketch to mock-up

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Summer Sea Grant Scholar Julie catches us up on her prototyping for the climate change exhibit:

“Would you like to take a survey?”  Yes, I have said that very phrase or a variation of it many times this week.  I have talked to more than 50 people and received some good feedback for my exhibit.  I also began working on my exhibit proposal and visuals to go along with it.  This is so fun!  I love that I get to create this, and my proposal will be used to pitch the plan to whatever company they get to make the exhibit program.  How sweet is that?

So, the plan is to have a big multi-touch table – here is what it looks like, from the ideum website:

 

You can’t see very well from that picture but people can grab photos or videos or other digital objects, resize and move them around and place them wherever they want using swipe, pinch, and other gestures as with tablets and multitouch smartphones.  It allows multiple users to surround the table as well and work together or independently. This is a video showing this table tested here at Hatfield- it has a lot of narration about Free Choice Learning, and you can see the table in action a little bit.

People will be able to learn about climate change and then create their own “story” about what they think is important about climate change or global warming.  My concept of the interface for this has gone through a metamorphosis.  Here are the various transformations the interface has gone through:

Stage 1: My initial messy drawing to get my thoughts on paper and make sure I was on the same page with the exhibit team.  At this point I thought we would just have a simple touch screen kiosk.

 

Stage 2: Mock-up made by Allison the graphic designer, using stage 1 as a guide.  I showed this to people as I interviewed them so they’d have an idea of what the heck I was talking about.

 

Stage 3: My own digital version I’m currently working on, now more in sync with the touch table.  The final version will go into my exhibit proposal.

 

Here’s what it looks like with a folder opened – upon touching a file, an animation would show the file opening and spilling the contents on the workspace to end up kind of like this:

 

This is a very exciting project to work on, and I’m glad to get to use and hone my skills in creativity, organization, and attention to detail.  This exhibit proposal will certainly need a lot of all 3 of those things.  It’s also very interesting to interview people- I find my preconceptions dashed often, which is very refreshing.  And it’s great to be able to tailor the exhibit to several different audiences, in hopes that the message will be well received by all, no matter where they currently stand in relation to the issue of climate change/ global warming.  Talking with folks helps me know for sure what kind of material each group wants, so I can maximize the success of the exhibit with that group.  I can’t wait to see this thing in the flesh – I have already decided I will have to take a vacation out here next summer just to check it out!

Freaky Friday? Or, more fun with cameras!

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We started the day with a couple of near-disasters but managed to make some good progress despite. We lost control of a hose while filling the tsunami wave tank and doused one of the controlling computers. Luckily, it was off at the time, but it also shouldn’t have had its case open, and we also should have been more aware of the hose! Ah, live and learn. No visitors were harmed, either.

It did help us identify that our internet is not quite up-to-snuff for the camera system; we’re supposed to have four GB ethernet connections but right now only have one. We went to review the footage to see what happened with the tanks, but the camera that had the right angle completely blanked out during just the time of the accident! Several of the other cameras are losing connection with the server intermittently as well. We’re not at the point of collecting real data, though, so again it’s just part of the learning process.

We also got more cameras installed, so we’re up to almost 30 in operation now. Not all are in their final place, but we’re getting more and more closer and closer as we live with them for a while and see how people interact. We also got the iPad interface set up so we can look at the cameras remotely using the Milestone XProtect app:

 

This will allow us to access the video footage from almost anywhere. It runs amazingly smoothly even on OSU’s finicky wireless network, and even seems to have slightly better image quality than the monitors (or maybe just better than my old laptop).

It’s a pretty powerful app, too, allowing us to choose the time we want to jump to, show picture in picture of the live feed, speed up or slow down playback, and capture snapshots we can email or save to the iPad Photo Library. Laura will install the full remote-viewing software on her laptop, too, to test that part of the operation out. That’s the one downside so far; most of our lab runs on Macs, while the Milestone system and the eyetracker are both on PCs, so we’ll have to buy a couple more laptops. Where’s that credit card?

 

Wave energy device progress report

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Since we last heard from him, Summer Scholar Brian has made progress on his wave energy device model, but that progress has in turn revealed more work to be done:

“With the successful design of the ”Pelamis” prototype it’s now time to reconstruct it using materials that are more durable and can stand up to the wear and tear of public use.  The next step for me is to actually incorporate a working public-friendly version of the Pelamis into the wave tank.  The first design used wood to attach the hinges to and after a few weeks in the water the wood has started to mold and disintegrate.  This upcoming Tuesday I hope to find a replacement material such as PVC or aluminum that won’t corrode in water.  Another material that I have to replace is the pipe insulation foam inside the PVC that keeps the whole thing afloat.  I have noticed that the foam is getting more and more saturated with water so the buoyancy of the entire device is decreasing.  Luckily for me ping pong balls bit perfectly in the 1 ½ in pipe so I am going to try and use those for floatation because they will hopefully never lose their buoyancy.

I am really impressed with the way the model moves in the water right now and I am hoping that the new materials won’t impede or hinder the movements seen with the first prototype.  This model does not actually create any energy from the motion of waves. The idea behind the whole design is that the public will be able to create waves in the tank and see how this particular WEC captures the energy of the waves through the snake-like movement.  As long as the motion is consistent, it should be fairly simple for anyone to understand how energy is captured.”