<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Tue, Mar 25, 2014 at 4:21 PM, Gregory Ewing <span dir="ltr"><<a href="mailto:greg.ewing@canterbury.ac.nz" target="_blank">greg.ewing@canterbury.ac.nz</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">Roy Smith wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
Doors that open automatically as you approach them are now routine.<br>
</blockquote>
<br>
Star Trek doors seem to be a bit smarter, though.<br>
Captain Kirk never had to stop in front of a door<br>
and wait for it to sluggishly slide open. Also the<br>
doors never open when you're just walking past and<br>
not intending to go through.</blockquote><div><br></div><div><a href="https://www.youtube.com/watch?v=JZAkGfJY05k">https://www.youtube.com/watch?v=JZAkGfJY05k</a> </div></div></div></div>