and used it in his plays in Hamlet.
characters Rosencrantz and Guildenstern
Astrophysicist Finds New Scientific Meaning
in Hamlet
The paper, by Peter D. Usher, professor of astronomy and astrophysics at Penn State, presents evidence that Hamlet is "an allegory for the competition between the cosmological models of Thomas Digges of England and Tycho Brahe of Denmark." Usher says the paper is significant because Shakespeare favors the Diggesian model, which is the forerunner of modern cosmology. "As early as 1601, Shakespeare anticipated the new universal order and humankind's position in it," Usher states. "The play therefore manifests an astronomical cosmology that is no less magnificent than its literary and philosophical counterparts."
Claudius Ptolemy perfected a model of the universe in the second century A.D. that remained the standard model into the sixteenth century. In this model, the Earth was stationary at the center of the universe and everything else revolved around it. In 1543, Nicholas Copernicus of Poland published a revolutionary model (which is essentially the one in use today) in which the Earth rotates on its axis once a day and is merely one of several planets that revolve about the Sun. Though the Copernican model had been published before Shakespeare was born, it was not yet in vogue in his lifetime.
However, both the Ptolemaic and the Copernican systems were contained in a crystalline sphere, beyond which lay Paradise and the realm of the Prime Mover. By contrast, in 1576 when Shakespeare was 12 years old, the English scientist and military scholar Thomas Digges extended the Copernican model by suggesting that the stars were like the Sun and were distributed through infinite space. He was therefore the first Renaissance scholar to publish the idea of an infinite universe. Eight years later similar ideas were published in a book by the Italian philosopher Giordano Bruno.
Shakespeare would have known of the existence of these competing cosmological models through his acquaintance with Digges. "Through Digges, Shakespeare knew also of the astronomer Tycho Brahe, and he named the characters Rosencrantz and Guildenstern for Tycho's ancestors," the paper states. Tycho's model of the universe was similar to Ptolemy's in two major ways: it was Earth centered, and it too was imbedded in a spherical shell of stars.
This paper suggests that Hamlet dramatizes the struggle of Renaissance scholars to discover the real picture of the universe from the appearances in the sky. "When Hamlet states: 'I could be bounded in a nutshell and count myself a king of infinite space . . . ' he is contrasting the shell of fixed stars in the Ptolemaic, Copernican, and Tychonic models with the Infinite Universe of Digges," Usher says.
http://www.science.psu.edu/alert/Hamlet.html