Cardiac electrophysiology is the science of elucidating, diagnosing, and treating the electrical activities of the heart. The term is usually used to describe studies of such phenomena by invasive (intracardiac) catheter recording of spontaneous activity as well as of cardiac responses to programmed electrical stimulation (PES).
Ancient Egyptian Pyramids in Giza. Egyptian pyramids are great monument of a great civilization that was born seven thousand years ago. The ancient Egyptians built more than 90 royal pyramids, from about 2630 BC until about 1530 BC.During that time, the pyramid shape evolved from a series of stepped terraces to sloped pyramidal shape.ncient Egyptian Pyramids in Giza. Egyptian pyramids are great monument of a great civilization that was born seven thousand years ago. The ancient Egyptians built more than 90 royal pyramids, from about 2630 BC until about 1530 BC.
Best Answer: Pyramids are tombs of Kings and Queens of ancient Egypt. They symbolize the power of the King, the larger the pyramid the more powerful he was. They show us how religious Egyptians were, constructing the pyramid was a religious activity since the King was considered the son of the supreme god Ra (the sun).hey symbolize the power of the King, the larger the pyramid the more powerful he was. They show us how religious Egyptians were, constructing the pyramid was a religious activity since the King was considered the son of the supreme god Ra (the sun).