by Ollie Tizzard on Quora
MRI Scanners. When I read how they work I literally put my tea down and sloshed it everywhere and said “it does what?!” out loud.
I long thought Magnetic Resonance Imaging scanners worked along similar lines to X-Rays or CT scans and used projected radiation.
Nuh-uh. (standby for some layman-speak)
We human meatbags are about 70% water. It’s a substrate in all our tissues.
Water is Hydrogen and Oxygen. Two atoms of the first and one the latter. Our Hydrogen atoms are one proton and one electron. We’re not so interested in those.
Our body’s hydrogen protons are usually all buzzing around like a classroom full of unruly kids with a timid supply teacher.
Their magnetic fields are all over the place and thus we, as humans, are generally not magnetic.
