<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>achow</author><text>&amp;gt; &lt;i&gt;If you shrank a 777 to the size of a soda can, its skin would be about four times thinner than the average can&amp;#x27;s.&lt;/i&gt;&lt;p&gt;My take..
The difference between inside and outside of soda can is approx 175 (kPa). 
The difference between inside and outside of aircraft cabin at the cruising altitude is 56.6 (kPa).
So Soda can bears differential of approx 3 times than the pressure differential that aircraft cabin structure supports, with material 4 times thinner.&lt;p&gt;Aircraft is 12 times more safer than a soda can (!)&lt;p&gt;Interesting.. aircraft safety engineers at work.&lt;p&gt;Reference:&lt;p&gt;&lt;a href=&quot;http:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Cabin_pressurization&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Cabin_pressurization&lt;/a&gt;&lt;p&gt;&lt;a href=&quot;http:&amp;#x2F;&amp;#x2F;www.engineeringtoolbox.com&amp;#x2F;air-altitude-pressure-d_462.html&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;www.engineeringtoolbox.com&amp;#x2F;air-altitude-pressure-d_46...&lt;/a&gt;</text><parent_chain><item><author>re</author><text>If you shrank a 777 to the size of a soda can, its skin would be about four times thinner than the average can&amp;#x27;s.</text></item><item><author>oh_sigh</author><text>To put it another way: Fuselages are 20x thicker than the walls of soda cans.</text></item><item><author>hellyeasa</author><text>Here&amp;#x27;s another cool random plane tidbit.&lt;p&gt;Commercial jetliner fuselage wall thicknesses are typically around 1-2mm. They don&amp;#x27;t call &amp;#x27;em flying tincans for nothin! Think about that next time you fly!</text></item></parent_chain></comment><story><title>Why do airplane windows have tiny holes?</title><url>http://www.slate.com/blogs/the_eye/2015/05/29/what_s_that_thing_why_are_there_holes_in_airplane_windows.html</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>jonsen</author><text>So it would be unwise to fill a 777 with soda.</text><parent_chain><item><author>re</author><text>If you shrank a 777 to the size of a soda can, its skin would be about four times thinner than the average can&amp;#x27;s.</text></item><item><author>oh_sigh</author><text>To put it another way: Fuselages are 20x thicker than the walls of soda cans.</text></item><item><author>hellyeasa</author><text>Here&amp;#x27;s another cool random plane tidbit.&lt;p&gt;Commercial jetliner fuselage wall thicknesses are typically around 1-2mm. They don&amp;#x27;t call &amp;#x27;em flying tincans for nothin! Think about that next time you fly!</text></item></parent_chain></comment><story><title>Why do airplane windows have tiny holes?</title><url>http://www.slate.com/blogs/the_eye/2015/05/29/what_s_that_thing_why_are_there_holes_in_airplane_windows.html</url></story>