<story><title>Ketchup is a non-Newtonian fluid</title><url>https://www.scientificamerican.com/article/ketchup-is-not-just-a-condiment-it-is-also-a-non-newtonian-fluid/</url></story><parent_chain></parent_chain><comment><author>shriphani</author><text>So we should be able to walk on the surface of a pool filled with ketchup?&lt;p&gt;I&amp;#x27;ve seen this video of people walking on custard on brainiac: &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.youtube.com&amp;#x2F;watch?v=Iz9KnPZWOgs&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.youtube.com&amp;#x2F;watch?v=Iz9KnPZWOgs&lt;/a&gt;</text></comment>
<story><title>Ketchup is a non-Newtonian fluid</title><url>https://www.scientificamerican.com/article/ketchup-is-not-just-a-condiment-it-is-also-a-non-newtonian-fluid/</url></story><parent_chain></parent_chain><comment><author>carols10cents</author><text>Through decades of experimentation, I have proven that hitting the 57 on the bottle is the best way to get the shearing force going.</text></comment>