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Micro Plane That Perches On Power Lines
An anonymous reader wrote in to tell us about a microplane that perches on power lines to recharge its batteries being developed as a surveillance device at MIT. As you can imagine, landing on a power line is hard to do ... and charging off transmission lines has its own problems.
If anyone here is actually interested in the science behind this you should have a look at some of the lab's publications on the subject. As per Slashdot tradition, all the brilliant points brought up so far in the comments already have answers, they're just a little bit harder to find this time.
Our research group's website:
http://groups.csail.mit.edu/locomotion/index.html
On the actual perching work:
http://groups.csail.mit.edu/robotics-center/public_papers/Cory08.pdf
http://groups.csail.mit.edu/robotics-center/public_papers/Hoburg09a.pdf
http://groups.csail.mit.edu/robotics-center/public_papers/Moore09.pdf
http://groups.csail.mit.edu/robotics-center/public_papers/Roberts09.pdf
Rick's PhD thesis on the subject:
http://groups.csail.mit.edu/locomotion/perching_media/CoryThesis.pdf
and on the controls side:
http://groups.csail.mit.edu/robotics-center/public_papers/Tedrake09a.pdf
You gotta find first gear in your giant robot car
news for you, placing inductor with coil near line doesn't "steal power that was leaking out of the lines anyway", it acts as secondary of transformer that in fact removes energy from line, stealing power that would have gone to customers.