Skin is the body’s largest organ, making up about 16% of your body weight—and it’s constantly renewing itself. You shed nearly a million skin cells every day.
MRI scans work because of a property of particles called spin. Specifically, MRI takes advantage of the spin of the nuclei of hydrogen atoms to generate images.
Ushi no toki mairi, meaning "Shrine visit at the hour of the ox" is a Japanese method of laying a curse to someone, involving nailing a straw effigy to a tree for seven nights straight!
