One challenge would involve creating a magnetic head that could hover over those dots, read their signal and write new data onto the grid.

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One new technique being used by some neuroeconomists is transcranial magnetic stimulation, in which a coil held next to the head issues a low-level magnetic pulse that temporarily disrupts activity in a certain part of the brain, to see if that changes the subject's preferences for example, for a particular food and how much he is willing to pay for it.

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There are other reasons behind the popularity of bobble-head dolls and magnetic sculptures.

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Jim was a frequent presenter at many industry events including many IDEMA conferences, the Head and Media Technology Review Conference, the 100th Anniversary of Magnetic Recording and Information Storage at Santa Clara University (SCU) as well as other events put on by the Institute of Information Storage Technology at SCU, and at his own DataStorage Conferences.

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What our man Pascal Brisset did is design a Linux system around a Gumstix Overo Fire computer-on-module, a Vuzix VR920 head-mounted stereoscopic 640 x 480 display (complete with 3D tilt sensor and 3D magnetic compass), WiFi, and Bluetooth modules -- the whole shebang resides in (and on) the eyewear, just the thing for secure telepresence and augmented reality applications (or just extra-private web browsing).

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The qubits were "programmed" using radio pulses, and the results of the calculations read using nuclear magnetic resonance imaging equipment, the same kind of machine a medical doctor might use to look inside at an injured head.

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