Not the most useful analogy for me

Nuts, now I have to learn about fish...

[weeks]

Joshua Smith, principal engineer at Intel's research facility in Seattle and the leader of the wireless power project, showed a robotic arm that could sense an apple placed in front of its claw, grasp the object, and then drop it into someone's outstretched hand. Among the key innovations is the sensor used in the robot. Rather than a camera, the sensor uses an electric field to identify objects, similar to how some fish identify their surroundings.
[informationweek.com...]

Right. Easy. Got it. Everyone knows how some fish identify their surroundings using electric fields. Very good.

[LifeinAsia]

And all this time I thought they used hyperbolic scanners, just like turtles do! Ya learns something new every day here on WebmasterWorld...

[weeks]

Sometimes I think they should just say, "Weeks, you'll never understand or appreciate it." It would save a lot of time.

[lawman]

I could use some personal long range sensors. Anybody working on that? :)

[LifeinAsia]

lawman,

Sort of... [webmasterworld.com]