What is an Ultrasound?

As a photographer, I have always been fascinated with how ultrasounds can create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs. Did you know that the first ultrasound was developed to measure flaws in metal castings in the 1940s? I am also mesmerized by the fact that 3D ultrasounds can make live, moving images of a beating heart.

“The soul becomes dyed with the color of its thoughts.” ~Marcus Aurelius
“A smooth sea never made a skilled sailor.”― Franklin D. Roosevelt