<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>Vacuum tubes would be better made using scientific glassblowing techniques and materials. I have done </span><span style="font-size: 12pt;">both</span><span style="font-size: 12pt;"> </span><span style="font-size: 12pt;">a bit of artistic and scientific glassblowing. The materials used in the arts are less precise and less forgiving of heating and cooling cycles. Artistic glass tends to shatter when exposed to temperature changes, whereas borosilicate scientific glass has a low coefficient of thermal expansion and is much more tolerant.</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: 'times new roman', 'new york', times, serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family:
'times new roman', 'new york', times, serif; background-color: transparent; font-style: normal;"><span>I've taken some classes at Flo. They're great; I highly recommend taking a course if you have any interest at all.</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: 'times new roman', 'new york', times, serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: 'times new roman', 'new york', times, serif; background-color: transparent; font-style: normal;"><span>Cheers,</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: 'times new roman', 'new york', times, serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: 'times new roman', 'new york', times, serif; background-color: transparent; font-style:
normal;">Nigel</div><div><br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;"> <div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt;"> <div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt;"> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Andrew Plumb <andrew@plumb.org><br> <b><span style="font-weight: bold;">To:</span></b> lab <lab@artengine.ca> <br> <b><span style="font-weight: bold;">Sent:</span></b> Wednesday, February 13, 2013 11:44:04 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Lab] What are you making for Valentines?<br> </font> </div> <br><div id="yiv1475119653"><div>Looks like they give classes and everything! See <a rel="nofollow" target="_blank"
href="http://floglassblowing.ca/">http://floglassblowing.ca/</a><div><br></div><div>I've often wondered what would be involved in making functional, artistic vacuum tubes...</div><div><br></div><div>Andrew.<br><div><br><div><div>On 2013-02-13, at 11:36 AM, Jean-Marc LeBlanc wrote:</div><br class="yiv1475119653Apple-interchange-newline"><blockquote type="cite"><div dir="ltr">That is really cool. How would one go about doing that. Do they show you how?<br></div><div class="yiv1475119653gmail_extra"><br clear="all"><div><br>Jean-Marc Le Blanc<br>---<br></div>
<br><br><div class="yiv1475119653gmail_quote">On Wed, Feb 13, 2013 at 11:21 AM, Jason Cobill <span dir="ltr"><<a rel="nofollow" ymailto="mailto:jason.cobill@gmail.com" target="_blank" href="mailto:jason.cobill@gmail.com">jason.cobill@gmail.com</a>></span> wrote:<br><blockquote class="yiv1475119653gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<br> Made this in rented time at the glassblowing studio at Flo Glassblowing. <br> <a rel="nofollow" target="_blank" href="http://www.lunarbovine.com/showandtell/BlueVase.jpg">http://www.lunarbovine.com/showandtell/BlueVase.jpg</a><br>
<br> It'll look better filled with flowers. :)<br>
<br> -Jason Cobill<br><br><br><div class="yiv1475119653gmail_quote"><div><div class="yiv1475119653h5">On Wed, Feb 13, 2013 at 10:22 AM, Darcy Whyte <span dir="ltr"><<a rel="nofollow" ymailto="mailto:darcy@siteware.com" target="_blank" href="mailto:darcy@siteware.com">darcy@siteware.com</a>></span> wrote:<br>
</div></div><blockquote class="yiv1475119653gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div><div class="yiv1475119653h5">
<div dir="ltr"><a rel="nofollow" target="_blank" href="http://inventorartist.com/tag/cards/">http://inventorartist.com/tag/cards/</a><br clear="all"><div><div dir="ltr"><br><div><div><div><br></div><div><div>--</div><div>Darcy Whyte</div>
<div><br></div>
<div>Art+ <a rel="nofollow" target="_blank" href="http://inventorartist.com/">inventorArtist.com</a> | Aviation <a rel="nofollow" target="_blank" href="http://rubber-power.com/">rubber-power.com</a> Software Service Since '88 <a rel="nofollow" target="_blank" href="http://siteware.com/">siteware.com</a> | Contact: <a rel="nofollow" ymailto="mailto:darcy@siteware.com" target="_blank" href="mailto:darcy@siteware.com">darcy@siteware.com</a> | Canada | N 45° 25'03.1" W 75° 42'21.4" | <a rel="nofollow" href="">(613.563.3634</a> by appointment)</div>
</div><div><br></div><div><br></div></div></div></div></div>
</div>
<br></div></div>_______________________________________________<br>
Lab mailing list<br>
<a rel="nofollow" ymailto="mailto:Lab@artengine.ca" target="_blank" href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>
<a rel="nofollow" target="_blank" href="http://artengine.ca/mailman/listinfo/lab">http://artengine.ca/mailman/listinfo/lab</a><br>
<br></blockquote></div><br>
<br>_______________________________________________<br>
Lab mailing list<br>
<a rel="nofollow" ymailto="mailto:Lab@artengine.ca" target="_blank" href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>
<a rel="nofollow" target="_blank" href="http://artengine.ca/mailman/listinfo/lab">http://artengine.ca/mailman/listinfo/lab</a><br>
<br></blockquote></div><br></div>
_______________________________________________<br>Lab mailing list<br><a rel="nofollow" ymailto="mailto:Lab@artengine.ca" target="_blank" href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>http://artengine.ca/mailman/listinfo/lab<br></blockquote></div><br><div>
<div style="font-family: Helvetica;">--<br><br>"The future is already here. It's just not very evenly distributed" -- William Gibson<br><br>Me: <a rel="nofollow" target="_blank" href="http://clothbot.com/wiki/">http://clothbot.com/wiki/</a><br></div><div style="font-family: Helvetica;"><br></div><br class="yiv1475119653Apple-interchange-newline">
</div>
<br></div></div></div></div><br>_______________________________________________<br>Lab mailing list<br><a ymailto="mailto:Lab@artengine.ca" href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br><a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br><br><br> </div> </div> </blockquote></div> </div></body></html>