The device measures blood pressure through several sensors which simultaneously measure the contact pressure, pulse and blood flow on the surface of the skin in the vicinity of the wrist.
Yes, Sir Isaac Newton is best known for his work on gravity. He also worked on and discovered many other scientific wonders during his lifetime (1642-1727).
(From-The Universe of Galileo and Newton, Bixby, William - 1966 ,p.125). I saac Newton is one of mankind's most outstanding physicists and mathematicians. Newton shaped physics and the new science. His works on physics and mathematics completed the scientific revolution of the 17th century, and served as the basis for the new science.