The Hyksos' chief deity was Zeus.
Piled Higher and Deeper -LRB- also known as PhD Comics -RRB- , is a newspaper and webcomic strip written and drawn by Jorge Cham that follows the lives of several grad students .. Jorge Cham. Jorge Cham. webcomic. webcomic. First published in the fall of 1997 when Cham was a grad student himself at Stanford University , the strip deals with issues of life in graduate school , including the difficulties of scientific research , the perils of procrastination , the complex student -- supervisor relationship and the perpetual search for free food .. grad student. grad student. Stanford University. Stanford University. graduate school. graduate school. procrastination. procrastination. Cham continued the strip as an Instructor in mechanical engineering at Caltech , and now draws and gives talks about the strip full-time .. mechanical engineering. mechanical engineering. Caltech. Caltech. Originally , the strip was drawn in crude black-and-white , eventually became grayscale , and finally became color in June 2004 .