Ultrasound is often the first test used to look at the liver. Ultrasound (ultrasonography) is the use of sound waves to create an image on a video screen. A small instrument called a transducer gives off sound waves and picks up the echoes as they bounce off the organs.ltrasound is often the first test used to look at the liver. Ultrasound (ultrasonography) is the use of sound waves to create an image on a video screen. A small instrument called a transducer gives off sound waves and picks up the echoes as they bounce off the organs.
RMS Titanic was a British passenger liner that sank in the North Atlantic Ocean in the early morning of 15 April 1912 after colliding with an iceberg during her maiden voyage from Southampton, UK, to New York City, US.
When the Titanic sank in 1912, the famous ship wasnât exactly sailing in obscurity. Yet it took decades before the wreckage was discovered. It wasnât until Sept. 1, 1985â30 years ago Tuesdayâthat scientists, after years and years of searching, found what they were looking for. As shown by these photos, taken that year and shortly after, the ship was in surprisingly good condition considering the time that had passed.