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We have video conferencing and one to one but lack the personal touch of eye contact.
One study of parents and children found that eye-contact between parent and child occured only 8 seconds per day!
For students and teacher to really 'connect' they need eye contact, I assert.
With a TV camera we could modify the view so that it was as if the camera were in the middle of the screen and
do the same with the person on the other end of the connection. A flying spot scanner can track the eyes and you
will have eye-contact through a screen. Could it be expanded until a professor could address an individual but
remotely located student and make eye contact? Maybe.