<div dir="ltr"><br><br>
<div class="gmail_quote">On Wed, Jul 16, 2008 at 4:25 PM, Yoshiki Ohshima <<a href="mailto:yoshiki@vpri.org">yoshiki@vpri.org</a>> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">At Wed, 16 Jul 2008 13:18:35 -0700 (PDT),<br>
<div class="Ih2E3d">Alan Kay wrote:<br>><br>> Or, you could even try having multiple display screens side by side on the same computer (we used to call them<br>> "windows") ...<br><br></div> I'm just wrapping up the extension to the Etoys' sensor input<br>
capability to support the direct input mode.<br><br> So, another alternative is to have two Etoys objects in the same<br>Etoys project, and have one driven by the simulation and another by<br>the sensor input side by side.</blockquote>
<div> </div>
<div>One wants to be careful not to take this too far, throwing one XO emitting a pure tone at high speed past another XO displaying the waveform should definitely NOT make it into the lesson plan on the Doppler effect. Very educational, but tough on the hardware. </div>
<div> </div>
<div>I recommend a whistle blown by someone sitting on the playpump merry-go-round ( <a href="http://www.playpumps.org/">http://www.playpumps.org</a> ) instead, that way you get clean water pumped at the same time.</div>
<div> </div>
<div>cjl</div></div></div>