Australia weighs in to make the perfect kilogram

Australian scientists and optical engineers will be making a perfect sphere that may one day re-define the kilogram – and they have taken delivery of the cylinder of silicon from which it will be made.

If you want to include this story in your blog, copy and paste this formatted text:

<p><a href="http://www.physorg.com/news101041038.html">Australia weighs in to make the perfect kilogram</a></p> <p>Australian scientists and optical engineers will be making a perfect sphere that may one day re-define the kilogram – and they have taken delivery of the cylinder of silicon from which it will be made.</p>