Glass-to-metal seal absorb the stresses from thermal expansion mismatches. Due to its very low vapor pressure, indium finds use in glass-metal seals used in vacuum technology. Gallium is a soft metal with melting point at 30 °C. It readily wets glasses and most metals and can be used for seals that can be assembled/disassembled by just slight heating. It can be used as a liquid seal up to high temperatures or even at lower temperatures when alloyed with other metals (e.g. as galinstan). Mercury is a metal liquid at normal temperature. It was used as the earliest glass-to-metal seal and is still
Room Temperature (novel) Room Temperature (novel) Room Temperature is Nicholson Baker's second book, and continues the genre established in his first novel "The Mezzanine", though this time the action spans a few minutes at the narrator's home (in Quincy, Massachusetts). Mike is feeding his baby daughter, "the Bug", as her head rests in the crook of his arm. He blows in the direction of a mobile; twenty seconds and two dozen pages later, he is surprised to see the mobile move. Mike's thoughts wander as he contemplates, for example, the possibility of admitting to one's wife that one has been picking one's nose