The idea of finding and raising the Titanic was thought of very soon after the sinking of the vessel. However, the first successful attempt at locating the Titanic Wreck was in 1985 by a French and American expedition led by Jean-Louis Michel and Dr. Robert Ballard.
The higher the pressure, the harder the heart has to pump. Normal adult blood pressure is defined as a blood pressure of 120 mm Hg1 when the heart beats (systolic) and a blood pressure of 80 mm Hg when the heart relaxes (diastolic).
Averaging two or more properly measured readings at each of two or more visits, a normal blood pressure is a systolic less than 120 mmHg and a diastolic less than 80 mmHg. A category called Pre-hypertension is defined as a systolic of 120 to 139 mmHg or a diastolic of 80 to 89 mmHg.