Showing papers in "Reviews of Modern Physics in 1932"
TL;DR: For example, in this article, Dirac's concept was used to explain the problem of interference in the creation of a defense against nuclear radii. And Dirac succeeded in constructing a theoretic framework to solve the problem.
Abstract: Until
a
few
years
ago
it
had
been
impossible
to
construct
a
theory
of
radiation
which
could
account
satisfactorily
both
for
interference
phenomena
and
the
phenomena
of
emission
and
absorption
of
light
by
matter.
The
first
set
of
phenomena
was
interpreted
by
the
wave
theory,
and
the
second
set
by
the
theory
of
light
quanta.
It
was
not
until
in
1927
that
Dirac
succeeded
in
constructing
a
quantum
theory
of
radiation
which
could
explain
in
an
unified
way
both
types
of
phenomena.
In
this
article
we
shall
develop
the
general
formulas
of
Dirac's
theory,
and
show
its
applications
to
several
characteristic
examples
I',
Part
I).
In
the
second
part
of
this
work
Dirac's
rela-
tivistic
wave
equation
of
the
electron
mill
be
discussed
in
relation
to
the
theory
of
radiation.
The
third
part
will
be
devoted
to
the
problems
of
the
general
quantum
electrodynamics,
and
to
the
difficulties
connected
with
it.
1,129 citations
73 citations
72 citations
40 citations
37 citations
3 citations
TL;DR: For example, at Habana, Cuba, latitude 23°09′ N, the average daily amount at the time of the summer solstice is about double that at the times of the winter solstice; at Washington, D.C., latitude 38° 56′ N., the corresponding ratio is about 3.5; at Stockholm, Sweden, latitude 59° 21′ N; it is about 20, and at Sloutzk, Union of Socialist Soviet Republics, about 40.
Abstract: SYNOPSIS Variations in the earth's solar distance cause variations in the intensity of solar radiation at the outer limit of the earth's atmosphere of very nearly 3.5 per cent on each side of the mean, with the maximum early in January and the minimum early in July. Variations in solar declination cause seasonal variations in the daily totals of solar radiation as measured at the surface of the earth, which are small at the Equator, but increase rapidly with latitude. At Habana, Cuba, latitude 23° 09′ N., the average daily amount at the time of the summer solstice is about double that at the time of the winter solstice; at Washington, D. C., latitude 38° 56′ N., the corresponding ratio is about 3.5; at Stockholm, Sweden, latitude 59° 21′ N., it is about 20, and at Sloutzk, Union of Socialist Soviet Republics, about 40. Following explosive volcanic eruptions the great quantity of dust thrown into the atmosphere, some of it to great heights, has diminished the intensity of the direct rays of the su...
2 citations