[an error occurred while processing this directive]

<section id="main">

<h2>Kelvin</h2>
<p>A snowflake fragment on half-sized replica of the IPK, made by the Murakami Koki Company and given to me by Noboru Murakami. I have read repeatedly that  from 1889 to 1989 the IPK has lost about 50 micrograms, or the weight of a fingerprint or an "average snowflake." But snowflakes come in many sizes, and are typically measured by diameter not mass.</p>
</section>


<section id = "main" class="sidebar">

<h3>SI Stamp Stories</h3>
<p>I made these stamps to celebrate the New SI. There are 7 units, but 8 stamps in the set. The "extra" stamp is for the International Prototype of the Kilogram.</p>

<p> The SI stamps were given to Kickstarter backers and other friends of this documentary film project.</p>

</section>
<ul>
<li><date>February 1, 2015</date> <a href="/blog/2015-02-01_stamps_kilogram.shtml">Stamp story: Kilogram </a></li>
<li><date>March 2, 2015</date> <a href="/blog/2015-03-01_stamps_ipk.shtml">Stamp story:  IPK</a></li>
<li><date>April 3, 2015</date> <a href="/blog/2015-04-01_stamps_ampere.shtml">Stamp story:  Ampere</a></li>
<li><date>June 4, 2015</date> <a href="/blog/2015-06-01_stamps_candela.shtml">Stamp story:  Candela</a></li>
<li><date>July 5, 2015</date> <a href="/blog/2015-07-01_stamps_meter.shtml">Stamp story:  Meter</a></li>
<li><date>August 7, 2015</date> <a href="/blog/2015-08-01_stamps_second.shtml">Stamp story:  Second</a></li>
<li><date>September 7, 2015</date> <a href="/blog/2015-09-01_stamps_kelvin.shtml">Stamp story:  Kelvin</a></li>
<li><date>October 8, 2015</date> <a href="/blog/2015-10-01_stamps_mole.shtml">Stamp story:  Mole</a></li></ul>
[an error occurred while processing this directive]