With Mark’s guidance over the phone, I spent a few hours today testing camera placement with a small Axis camera and its built-in microphone. One of my favorite security features of this camera is its built-in speaker, which can be used to make the camera shout “intruder,” whisper “pssst,” or bark like a dog.  None of these have any conceivable utility whatsoever for what we’re doing, but it’s always nice to know we have options.

So, I put it in the entryway.  I put it over and next to the octopus tank.  I put it over the front desk. I put it by the touch pool, which triggered a barrage of eyeball-seeking dust particles that had been guarding the overhead ethernet ports for untold eons.

Each vantage point tested presented a decent view and adequate lighting.  The model I used will not be installed in all positions, but it provides a great baseline.  We also received a new Axis dome camera with a microphone, which we can use up-close at individual exhibits.

To record a few audio tests, I directed the system output of one of our Macbooks into Audacity using Soundflower. Having recently spent several late nights playing with open-source audio software, I improvised this solution a bit more easily than I had anticipated. I never expected that my private dubstep habit would prove to be a reservoir of generalizable workplace skills, but it goes to show that free-choice learning happens all the time.

Alan Alda and the Center for Communicating Science have a challenge for scientists: explain a flame to an 11-year-old.  Brilliant.  You can read more about this (and submit your entry) here.

“As a curious 11-year-old, Alan Alda asked his teacher, “What is a flame?” She replied: “It’s oxidation.” Alda went on to win fame as an actor and writer, became an advocate for clear communication of science, and helped found the Center for Communicating Science at Stony Brook University. He never stopped being curious, and he never forgot how disappointing that non-answer answer was.”

Alda’s guest editorial for Science, wherein he issued his challenge, is also well worth reading.  This can also be found at the Flame Challenge site.

Do it for yourself.  Do it for the kids.  Do it for Hawkeye.

 

We are half way through the severe storms scientists’ residency at the Exploratorium and all is going well. We are testing many new ideas during this residency, some of them changes based on the evaluation from the last year. The scientists and explainers are working together at exhibits in the main thoroughfare of the museum. In the space is the storm chasing vehicle, a van de Graaff generator, the tornado exhibit, and the outdoor cart (a bike designed for explainers to ride around the Palace of Fine Arts, stop anywhere, and do an activity). Visitors of all ages are engaged within the space with some of them staying for an extended time (upwards of 20-30 minutes).

One thing the explainers are working on for this project is a floor walk. A floor walk allows explainers to lead visitors around the floor and give them a more in-depth experience with exhibits around a central topic. At the end of last week, the two lead explainers (those working with the severe storms scientists) practiced their floor walk with their fellow explainers, the scientists, and me. One exhibit that we explored more deeply was the tornado. We used tinsel to see how the air is flowing and therefore forming a tornado. We also explored how bubbles would act within the exhibit (http://www.flickr.com/photos/hmscvisitorcenter/6989941183/). I learned that the Exploratorium has a room devoted to bubbles. Yes, a closet that is filled with everything bubble related. Hmmm….

Mark and I did some scale-model wave tank testing this afternoon.  An initial test presented some hurdles (waves splashing over the far end of the tank, waves rebounding and creating mid-tank chaos, etc.).  Mark introduced a novel scale-model component (a scouring pad at the end of the tank) to disperse the wave energy and prevent the waves from bouncing back.

With this humble addition, the model tank performed admirably, providing practical reassurance that the proposed measurements for the final design will demonstrate the relevant concepts without soaking the floors.  Any handle, button, lever, knob or switch in an exhibit space must be built to accommodate a range of perceivable affordances.  If pulling the lever triggers an interesting result, pulling it ever harder and faster might produce even more interesting results.

This can sometimes put wear and tear on exhibit components, but it’s part of what makes hands-on exhibits fun for learners (and learning researchers, too).

 

There is nothing like celebrating Pi Day at the Exploratorium! The scientists’ time on the floor was cut a little short today due to Pi Day festivities, but it was fun taking it all in. The field trip explainers, who spend a lot of time working directly with the scientists on this project, put on an amazing performance of an original song, which I recorded for your viewing pleasure. Sitting in our afternoon meetings we could hear the celebration continue. There was a parade of the digits of pi that worked its way through the museum. And let’s not forget actual pie (I had a piece of strawberry pie and chicken & spinach quiche).

This was a special Pi Day celebration for the Exploratorium. A physicist at the Exploratorium founded Pi Day and it is the last year the museum will celebrate Pi Day at the Palace of Fine Arts (the museum moves to Pier 15 in 2013). More information and Pi Day activities can be found at http://www.exploratorium.edu/pi/index.html.

I need to give a shout out to the band, Buffon’s Needle, in the video.
Adam Green, keyboards
Chas Thomsen, bass
Lok Chan, guitar
Ryan Juan, drums
Khamara Pettus, lead vocals
Remaining field trip explainers, back-up vocals

And sorry for the late post, using the iPad along with editing and uploading videos is a learning experience!