In this video I show you how capillaries can decrease the pressure in a liquid well below an absolute vacuum if they are small enough Veritasium Video on Trees: https://www.youtube.com/watch?v=BickMFHAZR0 Checkout my experiment book: https://amzn.to/2Wf07x1 Follow me on Twitter: https://twitter.com/theactionlabman Facebook: https://www.facebook.com/theactionlabofficial/ Instagram: https://www.instagram.com/therealactionlab/ Watch other popular videos from my channel Shooting a Nerf Gun… Continue reading How to Make Low Pressures with a Capillary tube