Other Work
In 1671, or perhaps earlier, he established the theorem that
- ,
the result being true only if θ lie between −(1/4)π and (1/4)π. This formula was later used to calculate digits of π, although more efficient formulas were later discovered.
James Gregory discovered the diffraction grating by passing sunlight through a bird feather and observing the diffraction pattern produced. In particular he observed the splitting of sunlight into its component colours – this occurred a year after Newton had done the same with a prism and the phenomenon was still highly controversial.
Gregory, an enthusiastic supporter of Newton, later had much friendly correspondence with him and incorporated his ideas into his own teaching, ideas which at that time were controversial and considered quite revolutionary.
The crater Gregory on the Moon is named after him. He was the uncle of mathematician David Gregory.
Read more about this topic: James Gregory (mathematician)
Famous quotes containing the word work:
“I see no reason for calling my work poetry except that there is no other category in which to put it.”
—Marianne Moore (1887–1972)
“Most women without children spend much more time than men on housework; with children, they devote more time to both housework and child care. Just as there is a wage gap between men and women in the workplace, there is a “leisure gap” between them at home. Most women work one shift at the office or factory and a “second shift” at home.”
—Arlie Hochschild (20th century)