The heart receives its own supply of blood from a network of arteries, called the coronary arteries. Two major coronary arteries branch off from the aorta near the point where the aorta and the left ventricle meet:
Walton, Ernest Thomas Sinton - Student Encyclopedia (Ages 11 and up) (1903-95), Irish physicist. Born in County Waterford, Ireland, Walton, with Sir John D. Cockcroft, received the 1951 Nobel prize in physics for the development of the first nuclear-particle accelerator.
While conducting research at Cambridge University, James Chadwick worked with Ernest Rutherford. Rutherford engrained his name in history when he discovered the proton. With more research, he â as well as other researchers â determined that it was not the only particle that made up the nucleus. Rutherford hired Chadwick in 1921, where he focused his research on radioactivity.