
        <p>This week, Elna picks Knoxville's brain on one of his heroes, Colonel John Stapp — the flight surgeon, biophysicist, and human performance scientist who once hit 639 miles-per-hour on a rocket sled and somehow lived to talk about it.&nbsp;&nbsp;</p><p>See Privacy Policy at <a href="https://art19.com/privacy" rel="noopener noreferrer" target="_blank">https://art19.com/privacy</a> and California Privacy Notice at <a href="https://art19.com/privacy#do-not-sell-my-info" rel="noopener noreferrer" target="_blank">https://art19.com/privacy#do-not-sell-my-info</a>.</p>
      

<description>
        &lt;p&gt;This week, Elna picks Knoxville's brain on one of his heroes, Colonel John Stapp — the flight surgeon, biophysicist, and human performance scientist who once hit 639 miles-per-hour on a rocket sled and somehow lived to talk about it.&amp;nbsp;&amp;nbsp;&lt;/p&gt;&lt;p&gt;See Privacy Policy at &lt;a href="https://art19.com/privacy" rel="noopener noreferrer" target="_blank"&gt;https://art19.com/privacy&lt;/a&gt; and California Privacy Notice at &lt;a href="https://art19.com/privacy#do-not-sell-my-info" rel="noopener noreferrer" target="_blank"&gt;https://art19.com/privacy#do-not-sell-my-info&lt;/a&gt;.&lt;/p&gt;
      </description>

This week, Elna picks Knoxville's brain on one of his heroes, Colonel John Stapp — the flight surgeon, biophysicist, and human performance scientist who once hit 639 miles-per-hour on a rocket sled and somehow lived to talk about it.  

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Pretty Sure I Can Fly with Johnny Knoxville & Elna Baker

The Human Crash Test Dummy, Colonel John Stapp

The Human Crash Test Dummy, Colonel John Stapp

Description