Vacuum is the absence of matter, or the very high, but imperfect, vacuum of the solar system and interstellar space.
Vacuum may also refer to:
XXX may refer to:
Eureka often refers to:
Cary may refer to:
Permeability, permeable, and semipermeable may refer to:
Henry may refer to:
Westinghouse may refer to:
HT, Ht, hT, or ht may refer to:
Rogers may refer to:
Hoover may refer to:
Discovery may refer to:
Absolute may refer to:
Free state, Free State, or the Free State may refer to:
Kirby may refer to:
In quantum field theory, a false vacuum is a hypothetical vacuum state that is locally stable but does not occupy the most stable possible ground state. In this condition it is called metastable. It may last for a very long time in this state, but could eventually decay to the more stable one, an event known as false vacuum decay. The most common suggestion of how such a decay might happen in our universe is called bubble nucleation – if a small region of the universe by chance reached a more stable vacuum, this "bubble" would spread.
Volta may refer to:
High vacuum may refer to:
Polarization or polarisation may refer to:
Empty space may refer to:
Alcatel was a French telecommunications company. It can also refer to:
The quantum vacuum state or simply quantum vacuum refers to the quantum state with the lowest possible energy.