Area of a circle of Cnidus in the fifth century B.C. had found that the area of a disk is proportional to its radius squared. Archimedes used the tools of Euclidean geometry to show that the area inside a circle is equal to that of a right triangle whose base has the length of the circle's circumference and whose height equals the circle's radius in his book "Measurement of a Circle". The circumference is 2"r", and the area of a triangle is half the base times the height, yielding the area "r" for the disk. Prior to Archimedes, Hippocrates of Chios was the first
The Doll that Came Straight from Fairyland The Doll that Came Straight from Fairyland "The Doll That Came Straight From Fairyland" is a short story for children published in 1898 by the suffragist and children's fairytale writer Evelyn Sharp. The first edition was published by John Lane in London, England, in "All The Way To Fairyland" with seven other short stories. Evelyn Sharp was born in 1869 and was the ninth of eleven children. She had three years of schooling in London where she made her living. Evelyn's first publication was an article about fairy tales which led to "Wymps and other Fairy Tales" (1896) and "All