Gee whiz stuff: <<The researchers have been able to modify the lens? focal distance from 1.6 to 8 meters in a few milliseconds by increasing the voltage from 1.5 to 4.5 volts.>> By the time it's focussed to infinity it needs a nuclear power source :o) I'm presuming "focal distance" is the point it's focussed onj and not it's focal length? Bob -- Whatever you Wanadoo: http://www.wanadoo.co.uk/time/ This email has been checked for most known viruses - find out more at: http://www.wanadoo.co.uk/help/id/7098.htm
