The
trademark name for a
borosilicate glass that was developed in 1918 for
railroad lanterns. It is best known as a line of
bakeware that withstands
both temperature extremes
and rapid changes of temperature that would
shatter
ordinary glassware.
It also resists chemicals and electricity, and has
interesting optical properties, and for these reasons
is used in optical applications, laboratory ware,
body piercings, and bongs.