18 JAN 2013 by ideonexus

 Einstein's Cosmological Constant

Georges Lemaitre was a pudgy, pinkish Belgian Jesuit abbe—a Catholic priest—who also happened to be a skilled astronomer. Lemaitre had noticed that Einstein's general theory of relativity would have implied that the universe was expanding but for a troublesome little mathematical term called the cosmological constant that Einstein had inserted into his equations. Lemaitre saw no convincing reason why the cosmological constant should be there. In fact, Einstein himself had originally calculat...
 1  1  notes

He put the constant into his theory to keep the Universe static, but observations demonstrated it was expanding, so he changed his theory to match the evidence.

18 JAN 2013 by ideonexus

 Newton Was "Last of the Magicians"

Newton provides an example of how the idea of "science" had not yet fully emerged as something separate from religion in early Enlightenment thinking. In fact, during the seventeenth century, the word "scientist" was not commonly used to describe experimenters at all; they were called natural philosophers"^^ in an extension of the Puritan idea of the study of the Book of Nature. Science had also not fully emerged as a separate concept, but was sometimes thought of as a method or style of stud...
  1  notes

There was a great deal of belief in magic in Newton's writings.