Contribute correction: Ultra Sonic Waves

  ______   __   __    _  _      ___    
 /_   _//  \ \\/ //  | \| ||   / _ \\  
 `-| |,-    \ ` //   |  ' ||  | / \ || 
   | ||      | ||    | .  ||  | \_/ || 
   |_||      |_||    |_|\_||   \___//  
   `-`'      `-`'    `-` -`    `---`