tag:blogger.com,1999:blog-83137383498620669492011-10-25T02:56:37.803-07:00Elizabeth Brianhttp://www.blogger.com/profile/09321116332730728044noreply@blogger.comBlogger11100tag:blogger.com,1999:blog-8313738349862066949.post-46940330546641109842002-09-07T02:18:00.000-07:002011-09-19T02:23:05.718-07:00<div dir="ltr" style="text-align: left;" trbidi="on">One steamy day in the summer of 1921, Philo criss-crossed an open field atop a horse drawn plowing machine, thinking about television to relieve the boredom, when for a moment, he stopped to survey his day's work. Noticing the neatly cut parallel rows in the dirt before him, he was struck with a flash of inspiration: just as he plowed the field, back and forth in parallel rows, so could he scan an image, one line at a time, with a magnetically-deflected beam of electrons inside a cathode ray tube. At that moment, television as we know it - and all its extensions and futher manifestations (like this computer screen) arrived on earth in the mind of this 14-year-old farm boy.</div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/8313738349862066949-4694033054664110984?l=edtechdev.blogspot.com' alt='' /></div>Elizabeth Brianhttp://www.blogger.com/profile/09321116332730728044noreply@blogger.com1