I love TED. Roaming the website is like the video equivalent of Wikipedia surfing if you removed all of the boring parts. This particular video is the kind of thing that gets my heat racing.
Imagine - with the rate of increase in medical technology, soon we will treat medical procedures the same way we treat android phones: "Well, I could upgrade now, but if I wait six months, technology x will be released and I'll get so many new features".
It also brings to mind this picture:
|So very, very simple|
So, enjoy this video about the medical uses of ultrasound, and while you're there, watch every other video. Heck, even the musical performances are good.