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).
Isaac Newton is one of the greatest physicists of all time. He made many invention that changed science, math, and physics. He allowed for the world to go father in their studies by expanding their understanding.