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The Philadelphia Zoo is one of the premier zoos in the world for breeding animals that are difficult to breed in captivity. [5] The zoo also works with many groups around the world to protect the natural habitats of the animals in their care. The zoo is 42 acres (17 ha) and the home of nearly 1,300 animals, [1] many of which are rare and ...
The Game of Life, also known as Conway's Game of Life or simply Life, is a cellular automaton devised by the British mathematician John Horton Conway in 1970. [1] It is a zero-player game, [2] [3] meaning that its evolution is determined by its initial state, requiring no further input. One interacts with the Game of Life by creating an initial ...
In early 1889 Crandall invented a new game that swept the country simply called "Pigs in Clover". This was among the first or at least the most popular ball-in-a-maze puzzles in America. The "pigs" were marbles and the solver was required to manipulate them in such a manner as to locate each within a set of concentric circles on the puzzle.
The Birth of Pennsylvania, a portrait of William Penn (standing with document in hand), who founded the Province of Pennsylvania in 1681 as a refuge for Quakers after receiving a royal deed to it from King Charles II. The history of Pennsylvania stems back thousands of years when the first indigenous peoples occupied the area of what is now ...
History of Animals (Ancient Greek: Τῶν περὶ τὰ ζῷα ἱστοριῶν, Ton peri ta zoia historion, "Inquiries on Animals"; Latin: Historia Animalium, "History of Animals") is one of the major texts on biology by the ancient Greek philosopher Aristotle. It was written in sometime between the mid-fourth century BC and Aristotle's ...
Both Plato and Homer mention board games called 'petteia' (games played with 'pessoi', i.e. 'pieces' or 'men'). According to Plato, they are all Egyptian in origin. The name 'petteia' seems to be a generic term for board game and refers to various games. One such game was called 'poleis' (city states) and was a game of battle on a checkered ...
If you love Scrabble, you'll love the wonderful word game fun of Just Words. Play Just Words free online!
They were 2 + 1 ⁄ 2 inches (64 mm) tall, and included 98 coils of high-grade blue-black Swedish steel. [5] They initially had difficulty selling Slinky to toy stores, but in 1945, they were granted permission to set up an inclined plane in the toy section of Gimbels Department Store in Philadelphia to demonstrate it on the Tuesday after ...