Operation IceBridge, a six year mission to map the polar ice with unprecedented accuracy, flies missions year round. Coincidentally, they were in Fairbanks flying missions into the Arctic Ocean at the same time I am here training with PolarTREC (the organization that pairs teachers with polar researchers). So I got to meet them!


After meeting Michael and Christy in the afternoon, they invited me to the airport to watch them takeoff … at 1:30 a.m. Of course I went! I even got to go inside the P-3 for the first time.





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http://youtu.be/WJX80Ac2kss .
I got a few complaints from my 7-year-old daughter that yesterday's questions were a bit confusing, so today's are geared more for her:
1) In the video you saw that there are four blades on each engine. There are also four engines on the plane. So how many total blades are there?
2) In the video, you might have noticed the blinking red strobe light. It blinks once every second, or as we say in physics, the blinking has a frequency of 1 Hertz. How many times does it blink in one minute? In one hour?
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Answers: 16, 60, 3600 (that last one is tough!)