Pyrex

The high heat resistance allows the pipe to tolerate a longer period of use. Replay can refer to the following:. Specialty tobacco pipes, though commonly used for smoking marijuana, are made from Pyrex. Replay is also a 1980 album by the rock group Crosby, Stills & Nash. Due to its high heat resistance, it can tolerate the great temperature differences between water and the Nichrome heating element. Replay is a 1987 science fiction novel by Ken Grimwood. Aquarium heaters are sometimes made out of pyrex. In serious filmmaking this technique also helps to show the same scene from a different point of view or perspective.

Claims have been made of severe personal injury during these events. It is widely used in context of filmed sporting activities and often in slow motion to show the action in detail. Recent reports suggest that, notwithstanding the claims made for Pyrex, the glassware can shatter violently and unexpectedly, even when used in accordance with manufacturers instructions. In motion pictures and television, a replay (more commonly called an action replay or instant replay) is a showing again of part of a film. Pyrex measuring cups, which featured painted-on markings illustrating graduated measurements, are also widely used in American kitchens. Major League Baseball has consistently declined calls for an instant replay rule, holding that the judgment of the umpire on the field is absolute and binding upon the play of the game. Glass cookware is another common usage; a Pyrex pie plate is almost the American standard pie dish. Major American sports leagues which use some form of instant replay are the National Football League, National Basketball Association, National Hockey League, and some college football conferences.

Pyrex's refractory properties and physical strength make it ideal for use in laboratories, where it is used to make high-durability glass lab equipment, such as beakers and test tubes. An instant replay also refers to when a questionable call is reviewed, as is common in some sports. Caltech's famous 200-inch telescope mirror at Mount Palomar was cast by Corning during 1934-36 out of Pyrex, which expands and contracts less than ordinary glass. This method of deciding a result is common in many knockout competitions in soccer, notably in the FA Cup. Another useful characteristic of Pyrex is that when broken, it tends to crack into large pieces rather than shattering (it will snap rather than splinter). In sport, the term replay means a second game between two teams after the first tie finishes in a draw. Pyrex is also less dense than ordinary glass.

The boron gives borosilicate glass a reduced thermal expansion coefficient (about one-third that of ordinary glass), making it more resistant to heat. Borrowing from the welding trade, new burners combining oxygen with natural gas were required. Since Pyrex melts at a higher temperature than ordinary silicate glass, some new techniques were required to bring Pyrex into industrial production. Pyrex is created by adding boron to the traditional glassmaker's "frit" of silicate sand, soda, and ground lime.

. Though borosilicates had been produced before, the name Pyrex is widely used as a synonym for the material. Pyrex is a brand name of borosilicate glass introduced by Corning Glass Works in 1924.