- A
vacuum is a
space devoid of matter. The word is
derived from the
Latin adjective vacuus for "vacant" or "void". An
approximation to such
vacuum is a...
- A
vacuum tube,
electron tube,
valve (British usage), or tube (North America), is a
device that
controls electric current flow in a high
vacuum between...
- A
vacuum cleaner, also
known simply as a
vacuum or a hoover, is a
device that
causes suction in
order to
remove dirt from floors, upholstery, draperies...
- In
quantum field theory, a
false vacuum is a
hypothetical vacuum that is
relatively stable, but not in the most
stable state possible. This condition...
- The
vacuum magnetic permeability (variously
vacuum permeability,
permeability of free space,
permeability of
vacuum), also
known as the
magnetic constant...
-
Vacuum or
suction aspiration is a
procedure that uses a
vacuum source to
remove an
embryo or
fetus through the cervix. The
procedure is
performed to induce...
-
VACUUM is a set of
normative guidance principles for
achieving training and test
dataset quality for
structured datasets in data
science and
machine learning...
- A
vacuum pump is a type of pump
device that
draws gas
particles from a
sealed volume in
order to
leave behind a
partial vacuum. The
first vacuum pump was...
-
Vacuum permittivity,
commonly denoted ε0 (pronounced "epsilon nought" or "epsilon zero"), is the
value of the
absolute dielectric permittivity of classical...
- A
vacuum flask (also
known as a
Dewar flask,
Dewar bottle or thermos) is an
insulating storage vessel that
greatly lengthens the time over
which its contents...
