    TR3 http://www.raven1.net/ebrain.htm, from the July 1973 issue of
        Popular Electronics, a system to read EEG signals (the stuff of which
        thought reading is made) at a distance by passing a radio signal through
        the human head and analyzing the passed-through signal.

    TR4 http://www.raven1.net/elecvisn.htm, an article describing
        electronically reading a cat's brain waves and constructing a real-time
        image on screen from the EEG traces

    TR5 http://www.raven1.net/m_switch.htm, the text from a site describing
        a mind-controlled "switch", which can not only turn appliances on or off,
        but also adjust controls like volume.

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