Magnetic Resonance Imaging "sees" inside the body by mapping the position of water molecules, which exist at different densities in different types of tissue. Watch the video above for a sample of some impressive MRI images of the human body in action. Subscribe to our channel! www.youtube.com/subscription_center?add_user=voxdotcom Sources: Biomedizinische NMR Forschungs GmbH: commons.wikimedia.org/wiki/Category:Magnetic_resonance_imaging_videos ImprobableResearch: www.youtube.com/watch?v=OVAdCKaU3vY Abhijit Chaudhari: www.youtube.com/watch?v=sw1v8fobLZM Colorectal Surgery Services: www.youtube.com/watch?v=cwjteVVxWeU Randomehro: www.youtube.com/watch?v=K-0JRR3F6Wc Reuters: uk.reuters.com/video/2014/07/20/womb-with-a-view-shows-unique-slice-of-t?videoId=239385427 Christian Bamberg: www.ajog.org/article/S0002-9378(12)00023-3/abstract --- Vox.com is news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out www.vox.com to get up to speed on everything from Kurdistan to the Kim Kardashian app. Follow Vox on Twitter: twitter.com/voxdotcom Or on Facebook: www.facebook.com/Vox