I show you how the Blue Field Entoptic phenomenon (aka Scheerer’s phenomenon) works. My Youtube shorts channel: https://www.youtube.com/channel/UCA19mAJURyYHbJzhfpqhpCA Get Your Experiment Box Here: https://theactionlab.com/ Checkout my experiment book: https://amzn.to/2Wf07x1 Twitter: https://twitter.com/theactionlabman Facebook: https://www.facebook.com/theactionlabofficial/ Instagram: https://www.instagram.com/therealactionlab/ Snap: https://story.snapchat.com/p/d6633292-e115-4583-897d-628358779b5b/426771378288640 Tik Tok: https://www.tiktok.com/@theactionlabshorts