Thanks guys-<br><br>So I added Magnesium Carbonate (climber's chalk) as the fluorescent substance and from what I could find Magnesite is the most common form which does fluoresce, phosporesce and occasionally triboluminesce. The climber's chalk did not state it was from Magnesite, but "an athletic grade of natural carbonate of magnesia" with no additives. <br>
<br>I added this to the piezoelectric salt mixture that I used in a previous experiment and when it sets I'll hook it up to some electricity and see what happens. I had a terrible time trying to locate other fluorescent materials around town- I was close to using baby powder at one point (Talc fluoresces) but chickened out due to the unknown "parfum" factor. If it doesn't work it's ok, but it would be neat to see if the piezoelectric salt is producing some kind of UV radiation.<br>
<br>Emily<br><br><div class="gmail_quote">On Fri, May 18, 2012 at 5:11 PM, Michael Ayukawa <span dir="ltr"><<a href="mailto:mike.ayukawa@gmail.com" target="_blank">mike.ayukawa@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">To just confirm you have a UV source I'd just start with one of these minerals:<div><a href="http://en.wikipedia.org/wiki/File:Fluorescent_minerals_hg.jpg" target="_blank">http://en.wikipedia.org/wiki/File:Fluorescent_minerals_hg.jpg</a></div>
<div><br></div><div>Looks like calcite is on the list. So go find some chips of white marble from</div><div>a gardening store or borrow some from a potted plant.</div><div><br></div><div><a href="http://www1.newark.ohio-state.edu/Professional/OSU/Faculty/jstjohn/Zinc%20ore/Franklin-Marble.htm" target="_blank">http://www1.newark.ohio-state.edu/Professional/OSU/Faculty/jstjohn/Zinc%20ore/Franklin-Marble.htm</a></div>
<div><br></div><div>/Mike</div><div><div class="h5"><div><br><div><div>On 2012-05-18, at 5:02 PM, Paul & Andrea Mumby wrote:</div><br><blockquote type="cite">Something like this will detect UV, but it's an on/off type sensor (no "measurement")<div>
<a href="http://www.seeedstudio.com/depot/uv-tron-driver-circuit-c10807-p-640.html?cPath=6" target="_blank">http://www.seeedstudio.com/depot/uv-tron-driver-circuit-c10807-p-640.html?cPath=6</a>
</div><div><br></div><div>Certain types of phosphors will convert UV to visible light.</div><div><br></div><div>Also there are photosensitive papers that will react to UV (turning from black to white when exposed to UV for example)</div>
<div>such as: <a href="http://www.onlinesciencemall.com/sunart-paper-8x10-uv-sensitive-rayograph-paper-kit.html" target="_blank">http://www.onlinesciencemall.com/sunart-paper-8x10-uv-sensitive-rayograph-paper-kit.html</a></div>
<div><br></div>
<div>Hope that helps :)</div><div><br></div><div>- Paul</div><div><br><div class="gmail_quote">On Fri, May 18, 2012 at 4:55 PM, Emily Daniels <span dir="ltr"><<a href="mailto:emily.daniels@gmail.com" target="_blank">emily.daniels@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Labbers,<br><br>I may have already asked this group but does anyone have a way/device to measure ultraviolet (UVA/UVB/UVC) radiation and intensity/wavelengths? I may have just made something that gives off UV light but I'm not entirely sure. Any suggestions?<span><font color="#888888"><br>
<br>Emily<br clear="all"><br>-- <br>Emily Daniels | <a href="http://emilydaniels.com/" target="_blank">emilydaniels.com</a> | @emdaniels | <a href="http://awesomefoundation.org/" target="_blank">awesomefoundation.org</a><br>
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</blockquote></div><br></div></div></div></div></blockquote></div><br><br clear="all"><br>-- <br>Emily Daniels | <a href="http://emilydaniels.com">emilydaniels.com</a> | @emdaniels | <a href="http://awesomefoundation.org">awesomefoundation.org</a><br>
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