Billiard table ivory balls from warping. The first use of electric heating was for an 18.2 balkline tournament held in December 1927 between Welker Cochran and Jacob Schaefer, Jr. The New York Times announced it with fanfare: "For the first time in the history of world's championship balkline billiards a heated table will be used..." A pool table, or pocket billiards table, has six – one at each corner of the table () and one at the midpoint of each of the longer sides ( or ). Pool tables come in different sizes, typically referred to as , , , or tables.
Multiplying billiard balls third and fourth ball, all in the same hand. The magician will then vanish the balls, one at a time, until only one remains. Often, part of the routine involves the magician giving the impression that he is "passing" the balls through his body, in and out of his mouth, fingertips, and pockets. Sets of multiplying billiard balls are available from magicians' supply stores. The quality, size, material, and price of the balls can vary greatly and are dependent on the magician's personal taste. The balls are most frequently made of wood, plastic, or metal. From an article by Tom