Magnetic resonance imaging (MRI) is an imaging tool that creates detailed, cross-sectional pictures of the inside of the body. Using radiofrequency waves, powerful magnets and a computer, MRI systems are able to distinguish between normal and diseased tissue.agnetic resonance imaging (MRI) is an imaging tool that creates detailed, cross-sectional pictures of the inside of the body. Using radiofrequency waves, powerful magnets and a computer, MRI systems are able to distinguish between normal and diseased tissue.
0. 1  Troy N. Smith, Sr. opened a restaurant that would become the first Sonic Drive-In at Stillwater, Oklahoma in 1953. Smith's original plan was to tear down the existing small walk up root beer stand, called the Top Hat, and open a steakhouse in the log cabin that was on the site.
After discovering that his burger jointâs name was already trademarked, Top Hat Drive-In owner Troy N. Smith Sr. renamed his Oklahoma chain Sonic Drive-In in 1959. Though it was not the original Top Hat location, the first Sonic sign arrived at the Stillwater restaurant and thatâs where it remains today.