- up
focal in Wiktionary, the free dictionary.
Focal or
FOCAL may
refer to:
Focal (lexicographical website), an
Irish lexicographical website FOCAL (programming...
- The
focal length of an
optical system is a
measure of how
strongly the
system converges or
diverges light; it is the
inverse of the system's
optical power...
- up
focal point in Wiktionary, the free dictionary.
Focal point may
refer to:
Focus (optics)
Focus (geometry)
Conjugate points, also
called focal points...
-
Focal dystonia, also
called focal task-specific dystonia, is a
neurological condition that
affects a
muscle or
group of
muscles in a
specific part of...
-
Focal seizures (also
called partial seizures and
localized seizures) are
seizures that
affect initially only one
hemisphere of the brain. The
brain is...
-
sometimes defined using a "circle of confusion" criterion. A prin****l
focus or
focal point is a
special focus: For a lens, or a
spherical or
parabolic mirror...
-
dividing the system's
focal length by the
diameter of the
entrance pupil ("clear aperture"). The f-number is also
known as the
focal ratio, f-ratio, or f-stop...
-
Focal Press is a
publisher of
creative and
applied media books and it is an
imprint of Routledge/Taylor & Francis. The firm was
founded in
London in 1938...
- The
focal mechanism of an
earthquake describes the
deformation in the
source region that
generates the
seismic waves. In the case of a fault-related event...
- In criminology, the
focal concerns theory,
posited in 1962 by
Walter B. Miller,
attempts to
explain the
behavior of "members of
adolescent street corner...
