<div><p>Taylor Calmus built an incredible machine in order to reveal the sex of his second child - expected to be born in August this year. </p><p>The YouTube father at Dude Dad Vlogs took three days to build a Rube Goldberg machine (a complicated contraption that completes a simple task) throughout his house. </p><p>He shared the incredible video of the reveal on Facebook and it's been viewed over 8.5 million times in only a few days!</p><p>Watch the video of his incredible contraption all the way to the end to see how the new big brother reacts!</p><div><div><div><amp-youtube height="9" width="16" layout="responsive" data-videoid="CdqpobTyEjM"></amp-youtube></div></div></div><p>Source: <a href="http://aplus.com/a/chain-reaction-gender-reveal-video-taylor-calmus">aplus</a></p><p><!-- [invalid-shortcode] --></p></div>