<story><title>Show HN: Sketch, connect and simulate gears and chains</title><url>https://github.com/frankleenaars/gearsketch</url></story><parent_chain></parent_chain><comment><author>lifeformed</author><text>I&amp;#x27;ve always wondered -
Consider the following gear arrangement: &lt;a href=&quot;http://snag.gy/Tvsgi.jpg&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;snag.gy&amp;#x2F;Tvsgi.jpg&lt;/a&gt;&lt;p&gt;The tiniest push on the gear on the left causes the gear on the right to fly at thousands of RPM.  Of course, there would be a ton of friction in the system to overcome.  However, what if the left gear was a pinion connected to a rack that was pushed by an extremely powerful, yet slow-moving source, such as a glacier or tectonic plate?  With enough gears in this arrangement, an unstoppable force moving just 1mm&amp;#x2F;year could spin tons of turbines.&lt;p&gt;Would this work?</text></comment>
<story><title>Show HN: Sketch, connect and simulate gears and chains</title><url>https://github.com/frankleenaars/gearsketch</url></story><parent_chain></parent_chain><comment><author>basicallydan</author><text>This is really cool!&lt;p&gt;The ability to save a configuration and share it would be pretty cool, but as well as that, other objects such as sticks which are attached to gears would be a lot of fun. But then I suppose you have to involve gravity :)</text></comment>