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Download "“ MEDICAL EFFECTS OF THE ATOMIC BOMB ” 1949 U.S. ARMY RADIATION AND FALLOUT EDUCATIONAL FILM 28092"

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Video tags

Periscope Film
Stock Footage
Radiation (Literature Subject)
Nuclear Weapon (Film Subject)
Hiroshima (Japanese Designated City)
Atomic Bombings Of Hiroshima And Nagasaki (Military Conflict)
civil defense
Fallout Shelter (Literature Subject)
1949
World War II (Military Conflict)
Cold War (Military Conflict)
Japan
Radioactive Decay (Dimension)
radiation sickness
Acute Radiation Syndrome (Disease Or Medical Condition)
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00:00:32
8:15 on the morning of the 6th of August
00:00:35
1945
00:00:38
a city crowded with businessmen shoppers
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people on the way to work overhead and
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airplane passes scarcely noticed
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in one fraction of one minute one
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airplane carrying one bomb has so
00:01:37
devastated a city that only an expert
00:01:40
could distinguish it from Carthage or
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Troy Coventry or Warsaw Berlin or Tokyo
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one plane one bomb one city a weapon of
00:01:59
matchless destructiveness has opened up
00:02:02
new horizons of offensive warfare the
00:02:05
atomic bomb casts a searching light on
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present concepts of strategy and tactics
00:02:10
and on the overall problems of national
00:02:13
defense
00:02:18
atomic weapons have become the central
00:02:21
fact of diplomacy and international
00:02:23
relation federal and state authorities
00:02:29
labor under a new burden of
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responsibility on city and local
00:02:36
administrations the shadow of atomic
00:02:39
eventualities falls with a new urgency
00:02:42
on the medical profession on those who
00:02:48
must treat the casualties of any
00:02:50
disaster the implications of the atom
00:02:53
lie especially heavy for while the atom
00:02:56
bomb is a military weapon to the
00:02:59
individual practitioner and to the
00:03:01
potential victim it is essentially a
00:03:04
medical problem
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all matter liquid gaseous our solid is
00:03:28
composed of minut particles known as
00:03:30
atom particles so small that billions
00:03:34
upon billions are contained in a single
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grain of table salt a grain of salt
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under a microscope lens discloses fine
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details of shape and form the electron
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microscope with its magnification of a
00:03:54
hundred thousand times or more brings
00:03:57
ultimate reality one step nearer if it
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were possible to magnify matters several
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thousand times again the molecules of
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chemical compounds would become visible
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made up of their component atoms with
00:04:12
even greater magnification the atom
00:04:15
itself deep within the atom occupying
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only a small fraction of its total
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volume lies the nucleus the source of
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the energy in the atomic bomb is the
00:04:31
large complex and unstable nucleus of
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plutonium or uranium 235 the energy is
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released in a process known as nuclear
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fission in fission a nuclear particle
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known as a neutron strikes and splits
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the nucleus of uranium or plutonium
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between 1 and 3 neutrons are released if
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enough uranium or plutonium is present
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the neutrons may strike and split still
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other nuclei and the process continues
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this is the chain reaction which takes
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place in the atom bomb
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in the chain-reaction the nuclear
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fragments of fish and fly apart with
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violent force with increased motion of
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the atoms the temperature rises
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at higher temperatures thermal energy is
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given off first as infrared radiation
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then as visible light and finally as
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ultraviolet radiation within a fraction
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of a second after detonation the thermal
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energies of the chain reaction are
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converted to mechanical energy in a
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climactic explosion the chain reaction
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an atomic furnace in which mass is
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consumed and energies produced on an
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immense scale
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in fishin the energy of particles in
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motion is converted to thermal and
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mechanical energy these are conventional
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energy forms associated with explosives
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such as gunpowder in TNT they represent
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about 80 percent of the total energy
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output of fission the remaining 20%
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takes the form of nuclear radiation
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nuclear radiations are not new and
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medical experience but are given off by
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radioactive materials such as the radium
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in alumina swat-style and in some types
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of medical therapy normally radium gives
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off radiation in all directions but if
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confined the radiation may be limited to
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a single beam if the beam of radiation
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passes through a strong magnetic field
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it is split into three parts one beam of
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positively charged particles is bent in
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one direction this positively charged
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beam is composed of alpha particles a
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second beam of negative charge is
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deflected in the opposite direction this
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negatively charged beam is composed of
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beta particles the remainder of the
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radiation which is not affected by the
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magnetic field has no electrical charge
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and is known as gamma radiation these
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same radiations are also associated with
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the fission reaction in the atom bomb
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when a uranium or plutonium atom splits
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the neutrons emitted or accompanied
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simultaneously by gamma rays
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the fragments of the original atom are
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radioactive they returned to stability
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by giving off gamma rays and beta
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particles the neutrons leftover from the
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fission reaction may be captured by
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normally stable atoms rendering them
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artificially radioactive a source of
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beta and gamma radiation when fishin
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occurs on a large scale some uranium or
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plutonium is leftover from the fission
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reaction and is a continuing source of
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alpha radiation
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the range of alpha particles and air is
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measured in a few inches alpha particles
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are almost entirely absorbed by a few
00:09:22
sheets of ordinary writing paper beta
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particles have a range an air of several
00:09:31
feet but are effectively filtered out by
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several thin sheets of aluminum gamma
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rays are the same as x-rays of equal
00:09:44
energy they are extremely penetrating
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gamma penetration depends upon the
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atomic weight or density of the material
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light substances such as wood are quite
00:09:58
ineffective as a filtering material
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against gamma rays heavier materials
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such as concrete are considerably more
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effective in filtering the radiation
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lead a very heavy element is a highly
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efficient shielding material against
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gamma rays in contrast to gamma rays
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neutrons are less affected by heavy
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elements such as lead and may penetrate
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considerable thicknesses neutrons are
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stopped more effectively by water and
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other light materials which contain
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large amounts of hydrogen the range and
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penetration of nuclear radiations varies
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similarly in tissue alpha particles are
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absorbed by the outer layers of the skin
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beta particles penetrate through the
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skin into the subcutaneous layers
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neutrons are very highly penetrating in
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tissues as our gamma rays although
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nuclear radiations vary in penetration
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they all have the same destructive
00:11:17
effect on tissue cells
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in general radiation causes ionization
00:11:28
in the component atoms of cells altering
00:11:31
their chemical nature and impairing or
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destroying their normal function alpha
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particles cause intense ionization but
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are chiefly absorbed by the dead outer
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layers of the skin and do little damage
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to the living tissue beneath beta
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particles penetrate deeper because less
00:11:54
ionization they may result in serious
00:11:57
damage to the skin and superficial
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tissues
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neither alpha nor beta rays causes
00:12:04
serious damage to deep tissues unless
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the source of the Rays is inside the
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body neutrons travel an erratic course
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and lose their energy after colliding
00:12:17
with several other atoms under the
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impact of the neutrons light hydrogen
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atoms in the tissue fly off at high
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velocities producing ionization in
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neighboring cells on striking tissue
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gamma rays eject beta particles from
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atoms within the cells the beta
00:12:39
particles in turn caused ionization in
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the local tissue with gamma rays of low
00:12:49
energy the most intense ionization of
00:12:52
tissue cells is produced in the
00:12:54
superficial layers with gamma radiation
00:12:59
of higher entity the peak of ionization
00:13:02
is in the deeper tissues and effective
00:13:05
ionization occurs throughout the entire
00:13:07
body with whole body radiation
00:13:13
ionization causes loss of function of
00:13:16
the more sensitive tissues and organ the
00:13:19
degree of loss depends upon the dosage
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if the exposure is both general and
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severe death results
00:13:33
fashioning materials are a source of
00:13:36
three types of potentially destructive
00:13:38
energy nuclear radiations thermal energy
00:13:45
and mechanical energy accompanying the
00:13:46
reaction and residual radiation from the
00:13:52
fission product all these forms of
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energy are released in fantastic
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quantities within a fraction of a second
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after the detonation of the bomb first
00:14:10
there is an emission of thermal energy
00:14:12
gamma rays and neutrons depending upon
00:14:17
the altitude of the bursts the neutrons
00:14:19
reached the target in large or small
00:14:21
quantities or not at all the gamma rays
00:14:25
extend far from the target Center a
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massive pressure wave and winds of
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cyclonic velocity inflict great
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destruction on the target the fireball
00:14:37
shoots into the stratosphere forming a
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mushroom cloud composed of steam
00:14:42
superheated gases and vaporized metal a
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source of radioactivity until dispersed
00:14:49
by prevailing high-altitude wind
00:14:55
The effect of the explosion on a
00:14:58
military target is no longer a matter of
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conjecture never before have such
00:15:03
complex and devastating energies been
00:15:05
available for military use never before
00:15:11
has disaster struck with such sudden
00:15:13
violence so compressed in time and space
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when the atom bomb explodes everything
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happens at once
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at Ground Zero directly below the
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explosion piles of brick stone and
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concrete rubble marked the center of
00:15:35
destruction and the high point of human
00:15:37
mortality on sites where factories once
00:15:47
stood wrecked machines are the only
00:15:50
identifying feature a few empty hoaxes
00:15:57
of earthquake resistant steel and
00:15:59
concrete structures bear witness to the
00:16:01
crushing force of the blast
00:16:14
in the few buildings which remain
00:16:17
standing the roofs are collapsed by the
00:16:20
vertical pressure of the blast the
00:16:23
occupants are crushed under the wreckage
00:16:24
or trapped in the burning debris
00:16:35
those in the open are instantly charged
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by temperatures of thousands of degrees
00:16:40
and a moment later are struck by the
00:16:43
mechanical force of the blast those who
00:16:49
take refuge and deep underground
00:16:51
shelters survive otherwise the area near
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the target center is one of nearly total
00:17:02
loss in buildings and inhuman victims of
00:17:06
the multiple effects of the bomb
00:17:14
farther from the center of the blast the
00:17:17
destruction although not complete is
00:17:19
extremely severe even those buildings
00:17:22
which remain standing off a slight
00:17:24
protection
00:17:32
the extended pressures of the blast
00:17:35
penetrate through windows and doors to
00:17:37
building interiors where the ensuing
00:17:39
fires finished the job in this area the
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blast effect is exerted slantingly
00:17:48
downward rather than vertically whole
00:17:53
buildings are displaced bodily from
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their foundations
00:17:59
the extended blast exerted over entire
00:18:03
surfaces causes a general distortion
00:18:07
rather than the localized penetration of
00:18:09
conventional explosives factory
00:18:15
buildings that collapsed is build by the
00:18:17
pressure of a giant hand
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on buildings with weight-bearing walls
00:18:37
of stone of brick the pressure has a
00:18:40
devastating effect
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frame structures are demolished the
00:18:48
debris is a prolific source of fires
00:18:50
from short circuits and cooking stove
00:18:55
much of the firefighting apparatus is
00:18:58
destroyed while rubble filled streets
00:19:01
close the area to the equipment which
00:19:03
remain from the area of severe
00:19:09
destruction some of the injured are able
00:19:12
to make their way to comparative safety
00:19:14
and the outer limits of the city
00:19:20
in the outer reaches of the target the
00:19:22
destruction is less severe and reflects
00:19:25
the sheltering contour of the terrain
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destruction by fire varies freakishly
00:19:33
with the direction of the wind even at
00:19:40
the outermost limits of destruction
00:19:42
flying debris and splintered glass
00:19:44
caused a great variety of minor
00:19:46
casualties on the periphery of the
00:19:53
target there is an immense zone of minor
00:19:56
to moderate damage within it an
00:19:58
intermediate zone of severe destruction
00:20:02
at the center a zone of absolute total
00:20:06
devastation the bomb in addition to its
00:20:12
unprecedented destructiveness is
00:20:14
particularly effective as a
00:20:16
casualty-producing agent in the central
00:20:21
zone of complete destruction a large
00:20:23
majority died within the first few hours
00:20:25
from the combined effects of heat and
00:20:28
blast many of those not killed or
00:20:32
seriously injured in the intermediate
00:20:36
zone the mortality from heat and blast
00:20:39
falls off sharply and the number of
00:20:42
injured survivors greatly increases in
00:20:46
the outer zone while relatively few are
00:20:49
killed there are many injuries mostly of a
00:20:52
minor nature this is the typical picture
00:20:57
of the bombs thermal and dramatic effect
00:20:59
but superimposed over these conventional
00:21:03
effects are the novel effects of atomic
00:21:05
radiation depending upon the altitude of
00:21:10
the explosion neutrons reached the
00:21:13
ground and greater or lesser quantities
00:21:15
but are effective mainly at the center
00:21:18
of the target
00:21:23
gamma-rays however blankets the two
00:21:26
inner zones of the target area and a
00:21:29
small part of the outer zone their
00:21:31
intensity is greatest directly under the
00:21:34
bomb diminishing rapidly at greater
00:21:36
distances from the source little
00:21:39
effective radiation dosage occurs beyond
00:21:42
the intermediate zone radiation dosage
00:21:48
depends partly upon distance from the
00:21:50
explosion it also varies with the
00:21:54
shielding afforded by intervening
00:21:55
materials the greater the thickness of a
00:22:01
given material the greater the
00:22:03
absorption and the less the effective
00:22:05
dosage the denser the material the
00:22:10
greater the protection afforded concrete
00:22:14
is a better shielding material than an
00:22:16
equal thickness of brick less dense
00:22:21
materials such as wood and plaster offer
00:22:23
virtually no protection light frame
00:22:30
buildings give little or no protection
00:22:35
many storage structures of massive steel
00:22:38
and concrete do offer a degree of safety
00:22:41
particularly in the lower floors and
00:22:44
cellar and away from windows individual
00:22:51
dosage by gamma rays depends upon the
00:22:54
twin factors of distance from the source
00:22:56
and shielding maximum exposure occurs
00:23:03
near the target center where many
00:23:05
virtually unshielded receive extremely
00:23:09
severe dosages a smaller number receive
00:23:12
effective but non-lethal dosages farther
00:23:17
from the center the dosage is less
00:23:19
severe relatively few are affected and
00:23:22
many receive no radiation the combined
00:23:27
effects of radiation plus those from
00:23:30
heat and blast produce an early
00:23:32
mortality in the center zone of nearly
00:23:34
100%
00:23:37
with so many forces operating death
00:23:40
cannot be ascribed to anyone cause in
00:23:44
the intermediate zone the early death
00:23:47
rate is lower with a great increase in
00:23:50
injured survivors few are uninjured
00:23:54
in the peripheral zone most casualties
00:23:58
sustained minor damage
00:24:00
few died and many escaped uninjured the
00:24:06
injured survivors constitute the
00:24:08
treatment problem as the medical
00:24:10
services must face it a few hours after
00:24:12
the moment of detonation a simple graph
00:24:17
representing thousands of individual
00:24:19
casualties produced simultaneously in
00:24:22
one city by one bomb detonated at
00:24:25
optimum altitude over the center of a
00:24:27
flat target area the casualty statistics
00:24:31
are staggering assuming the bomb strikes
00:24:36
and unprepared a nun alerted city of all
00:24:38
over population density of one person
00:24:41
per thousand square feet with the total
00:24:43
population of a quarter million it is
00:24:46
estimated that approximately forty
00:24:48
thousand will die outright a hundred and
00:24:52
forty thousand will be injured of whom a
00:24:55
further proportion will subsequently die
00:25:02
the intermediate zone contains most of
00:25:05
the injured survivors and a great
00:25:08
majority of the more serious casualties
00:25:10
the medical services must direct their
00:25:13
main effort toward this intermediate
00:25:16
area of severe destruction of those
00:25:20
injured nearly half are burned an equal
00:25:25
numbers sustained traumatic injury
00:25:27
although usually of a minor nature since
00:25:30
the seriously injured survive only by
00:25:32
virtue of organised rescue in many
00:25:36
patients burns and trauma are found
00:25:39
together an additional numbers show
00:25:43
radiation effects without other
00:25:45
complication
00:25:48
often radiation is combined with
00:25:50
conventional injuries particularly near
00:25:53
the central zone while the effects of
00:25:57
radiation may not be immediately
00:25:58
apparent the thousands who have
00:26:01
sustained trauma and burns are an
00:26:03
instant need of treatment the crisis is
00:26:07
heightened by the sudden destruction of
00:26:09
medical facilities in the target area
00:26:11
most of the hospitals are rendered
00:26:14
nearly or completely useless doctors and
00:26:20
nurses and centrally located hospitals
00:26:22
and clinics suffer extremely high
00:26:25
casualties medical supplies and
00:26:30
equipment are largely destroyed the
00:26:33
medical services unprepared for disaster
00:26:36
are eliminated as an effective
00:26:38
organization the patients are numbered
00:26:44
by scores of thousands their injuries
00:26:47
are combined not simple this is
00:26:50
something new without example in
00:26:53
previous human experience the history of
00:26:57
modern war affords no valid parallel
00:27:42
in typical bombing with conventional
00:27:45
high explosives immediate
00:27:47
countermeasures go into effect all
00:27:50
energies are concentrated on the work of
00:27:52
defense when fires breakout firefighting
00:27:59
equipment goes into action to confine
00:28:02
and localize the damage
00:28:07
rescue squads converge on the foci of
00:28:10
destruction first aid teams penetrate
00:28:15
the beleaguered area to administer
00:28:17
emergency medical care serious cases are
00:28:22
removed immediately to prepared medical
00:28:25
stations we're well staffed facilities
00:28:27
accommodate the sudden influx of
00:28:29
patients throughout the bombardment
00:28:35
community services continued to function
00:28:39
telephones work water runs
00:28:46
they injured a rescue
00:28:50
streets remain open
00:28:55
factories continue to produce people
00:29:00
remain at their jobs
00:29:05
trains enter and leave the city
00:29:11
the population finds protection
00:29:13
underground and survives
00:29:21
after they attacked the fire subside the
00:29:25
city digs out the localized damage is
00:29:29
absorbed and repaired the living buried
00:29:36
the dead
00:29:40
the city weathers of the crisis and
00:29:43
survives as a going concern these are
00:29:52
the essential facts of conventional
00:29:54
bombing however severe it occurs
00:29:58
piecemeal and as fought piecemeal it is
00:30:01
localized in space it is spread out in
00:30:06
time but with the atomic bomb mass
00:30:12
destruction gains a new dimension in the
00:30:16
absence of planning local administration
00:30:20
and authority end the main links in the
00:30:23
chain of responsibilities are broken the
00:30:26
bomb community is rudderless unprotected
00:30:29
and helpless at the moment of crisis the
00:30:34
streets are closed there is no
00:30:37
transportation and no fire control there
00:30:41
is no firefighting equipment the water
00:30:45
does not run there are no public
00:30:49
services no electricity there is no
00:30:54
communication production ceases
00:30:58
hospitals are neither well staffed nor
00:31:01
well equipped the fragments of the
00:31:03
medical plant that do survive exist in a
00:31:06
virtual vacuum in atomic bombing there
00:31:12
are two essential factors it is total it
00:31:16
happens all over it is simultaneous it
00:31:20
all happens at once

Description:

This US Army (:08) film was an early attempt at describing the impact of the atomic bomb and radiation. The primary example used is of Hiroshima in 1945. The bomb wiped out about 290,000; much of which were civilians. Most of the footage included is of the city paying special attention to the destruction of actual buildings avoiding any actual survivors. The breakdown of the atomic bomb is explained. It opens at 8:14 am on August 6th (:36) on the streets of Hiroshima (:40). Civilians (:47) witness the B-29 (Enola Gay) passing above (:50). A white hot explosion (1:10) follows. The camera pans over rubble (1:37) left in 'The Little Boys' wake. The mushroom cloud from the explosion appears (1:59). War officials delight over new horizons of offensive war created by the atomic bomb (2:04). The Department of State at 320 21st Street NW (2:19) precedes the White House (2:27). The chemical process taking place within the atomic bomb follow (2:49). The periodic table of elements appears (3:25). Table salt (3:38) is set under a microscope (3:45). A view follows through the electron microscope (3:54). Chemical compounds are broken down (4:11). Plutonium or uranium 235 is at the center of the atomic bomb (4:37). Nuclear fission is demonstrated (4:43). The electron magnetic field (7:26) follows. Fission reaction of the atom bomb is looked to (8:05). Alpha particle (9:18) and beta particle ranges’ (9:30) are shown. Gamma rays (9:44) are highly penetrating. Alpha particles pass through the outer layers of human tissue (10:54). Beta particles pass deeper (11:03), and gamma deeper still (11:12). Radiation causes ionization of human cells (11:32). The erratic course of the neutron is traced (12:14). The location of peak ionization (13:02) is noted within the body. A diagram details whole body radiation (13:15). An animation shows the bomb falling (14:05) and the release of thermal energy (14:14). The pressure wave and cyclonic winds follow in animation (14:34). The mushroom cloud tower follows in actual footage (14:58). Decimated lands of Hiroshima; a sea of stubbed buildings, follow (15:20). Ground zero is highlighted (15:30) as the zone of highest human mortality (15:42). Wrecked wheels from factory machines note the location of a factory (15:51). Earthquake resistant steel still remains (15:58). Wrangled wrought iron gating (16:02) hang from concrete buildings. The narrator mentions the effects on bodies exposed to radiation as the camera view pans over stone statues (16:38). High temperatures preclude the mechanical force of the blast (16:46). A deep underground shelter is pictured (16:52). The view pans away from the center of the blast (17:21) to detail blast effect away from the center (17:46). A tower leans forward from it's foundation (17:57). The wrath of the extended blast causes a general distortion (18:03). The effect is noted on stone versus brick walls (18:39). A squat house bends inward (18:48). Smoke continues to stream from short circuits and cooking stoves (18:52). The flight path of the injured is considerably difficult (19:14). Destruction is captured at the outer reaches of the target (19:24). Flames lick at debris (19:32). The rate of mortality is traced from through the blast zone to the outer rim (20:49). The path of neutrons and gamma rays (21:29) are traced. Radiation affects are compared (21:52) on those wholly exposed to radiation compared to those with some protection (22:03). Radiation passes easily through light framed buildings (22:32). Further injury and death result from decimated hospitals and medical treatment centers (26:18). Sirens ring out (27:13), explosions pop (27:18) and pilots navigate the sky (27:22) in an example of traditional bombing. After the explosion (28:00) fire fighters and rescue squads can enter the scene. Female telephone operators work the switchboard (28:38) as other functions of the city continue with little hindrance. Water still runs (28:46) and injured are rescued (28:49). Vehicles run through open city streets (28:55). A city unearths itself following a heavy bombing (29:27). Living bury the dead (29:43). The atomic bomb renders a city incapable of recuperating (30:11). Public transits sits wasted (30:41), water systems are ruined (30:48) and only the frame of a medical plant remain (31:05). Motion picture films don't last forever; many have already been lost or destroyed. If you have endangered films you'd like to have scanned, or wish to donate celluloid to Periscope Film so that we can share them with the world, we'd love to hear from you. Contact us via the weblink below. This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD and 2k. For more information visit https://stock.periscopefilm.com/

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