<div dir="ltr">That is like saying that all that the Magnesium in fireworks is doing is just rusting (oxidizing) really, really, really fast, despite impurities added to the alloy to change the apparent the colors of the display, as it oxidizes really, really, really fast. It may be a distinction without a difference.<div>/s/ Richard.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jul 6, 2018 at 6:53 PM, Dave Vick via Stagecraft <span dir="ltr"><<a href="mailto:stagecraft@theatrical.net" target="_blank">stagecraft@theatrical.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Tue, Jul 3, 2018 at 4:14 PM, Bill Nelson via Stagecraft<br>
<<a href="mailto:stagecraft@theatrical.net">stagecraft@theatrical.net</a>> wrote:<br>
<br>
>> <<a href="https://www.designnews.com/materials-assembly/9-things-you-probably-don-t-know-about-fireworks/" rel="noreferrer" target="_blank">https://www.designnews.com/<wbr>materials-assembly/9-things-<wbr>you-probably-don-t-know-about-<wbr>fireworks/</a>><br>
><br>
> Interesting, but riddled with errors.<br>
<br>
<br>
"A lifting charge of black powder explodes in the pipe and pushes the<br>
shell outward at great speed."<br>
<br>
Yeah, no... Black powder does *not* explode; it deflagrates (i.e. it<br>
burns very, very, very, very, very, very fast).<br>
<span class="HOEnZb"><font color="#888888"><br>
-- <br>
Dave Vick<br>
IATSE #274, Michigan<br>
ETCP Double-Certified Rigger #427<br>
517-749-3859<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">/s/ Richard<br>_________</div>
</div>