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.
In 1911 the existence of the atomic nucleus was discovered by  Ernest Rutherford through his interpretation of the gold foil  experiment conducted two years earlier by Hans â¦ Geiger and Ernest  Marsden.In 1932 Dmitry Ivanenko proposed the proton-neutron model  of the nucleus. Answered.In Science.he familiar alpha particle scattering by thin gold foil experiment has given evidence for the existence of hard nucleus at the central region of the atom.