What's the Story of Ultrasound?

When did you get interested for the first time in ultra sound? Ok, that's a parallel story. When i was in residency, i did one year of electronic engineering at the israeli tenion. My subject was to construct a miniature oxy aelectrode for the scalp of the fetus. And then we got the first nutra son machine, which i already knew about in cleveland,. Because already operated e muta son machine in 19 78 in cleveland. So i was interested. Ad i bought one of the first ins in isral and used it in the department. And then i bought another one for my private practice, right? That's the story.