Portrait painting benefitted greatly from such commissions and from the general appreciation of art by bourgeois clients, who supported portraiture as well as still-life and landscapes painting. In addition, the first significant art and dealer markets flourished in Holland at that time. With plenty of demand, Rembrandt was able to experiment with unconventional composition and technique, such as chiaroscuro. He demonstrated these innovations, pioneered by Italian masters such as Caravaggio, most notably in his famous "Night Watch" (1642). "The Anatomy Lesson of Dr. Tulp" (1632) is another fine example of Rembrandt's mastery of the group painting, in which he bathes the corpse
The Doctor (Doctor Who) to hear it, at a certain frequency. If the stars are in the right place, and your heart’s in the right place, you’ll hear it." On occasion, the Doctor uses other aliases, such as "John Smith". In the Fourth Doctor serial "The Armageddon Factor", the Doctor runs into a former classmate of his named Drax. Drax calls the Doctor Theta Sigma or "Thete" for short, an alias which is clarified as the Doctor's nickname at the Prydon Academy on Gallifrey in "The Happiness Patrol" and referred to again in the 2010 episode "The Pandorica Opens". "Doctor Who" spin-off media have