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 1922 a 14-year-old farm boy first sketched his idea for television for his science teacher. The boyâs name was Philo T. Farnsworth and he knew very little about electronic theory. Three years earlier his family had moved to a farm in Idaho. The farm had electricity.