I show you how a magnet and ferrofluid can be used to change the orientation of iron particles. The iron nanoparticles can reflect LED lights. This "bending of light" is most likely specular reflection, however there has been no definitive proof. Though this device does not necessarily show magnetic fields, it can show you the effect of the magnetic field on the position of the iron particles. My shorts channel: https://www.youtube.com/channel/UCA19mAJURyYHbJzhfpqhpCA Get Your Experiment Box Here: https://theactionlab.com/ 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/