3d City After Effects

[Manuela]

Bythe end of 1945, the bombing had killed an estimated 140,000 people in Hiroshima, and a further 74,000 in Nagasaki. In the years that followed, many of the survivors would face leukemia, cancer, or other terrible side effects from the radiation.

The uranium bomb detonated over Hiroshima on 6 August 1945 had an explosive yield equal to 15,000 tonnes of TNT. It razed and burnt around 70 per cent of all buildings and caused an estimated 140,000 deaths by the end of 1945, along with increased rates of cancer and chronic disease among the survivors.

A slightly larger plutonium bomb exploded over Nagasaki three days later levelled 6.7 sq km. of the city and killed 74,000 people by the end of 1945. Ground temperatures reached 4,000C and radioactive rain poured down.

If a nuclear weapon were to be detonated over a city today, first responders - hospitals, firemen, aid organisations - would simply be unable to help. This powerful video by the Red Cross explains why:

The reason we know this is that the extent of the damage in Hiroshima and Nagasaki in 1945 made it nearly impossible to provide aid. In Hiroshima 90 per cent of physicians and nurses were killed or injured; 42 of 45 hospitals were rendered non-functional; and 70 per cent of victims had combined injuries including, in most cases, severe burns.

Five to six years after the bombings, the incidence of leukaemia increased noticeably among survivors. After about a decade, survivors began suffering from thyroid, breast, lung and other cancers at higher than normal rates.

Pregnant women exposed to the bombings experienced higher rates of miscarriage and deaths among their infants; their children were more likely to have intellectual disabilities, impaired growth and an increased risk of developing cancer.

The Hibakusha (survivors of the bombings of Hiroshima and Nagasaki) are integral to the history of the atomic bombings of these cities - not only because they are among the few true nuclear weapons experts to have experienced the actual impact of these weapons - but also because of the tireless efforts of many Hibakusha to eliminate nuclear weapons.

To learn more, you can find a vast number of Hibakusha testimonies online, but good starting places are Hibakusha Stories and the 1945 project, as well as these resources by the Hiroshima Peace Memorial Museum and the Nagasaki Atomic Bomb Museum.

Since the Treaty's adoption, many Hibakusha have continued their tireless advocacy efforts to abolish nuclear weapons. The Hibakusha Appeal calls on all governments to join the TPNW. World leaders must heed the calls of Hibakusha, and of concerned citizens around the world, for a nuclear-weapon-free future.

The International Campaign to Abolish Nuclear Weapons (ICAN) is a coalition of non-governmental organisations in one hundred countries promoting adherence to and implementation of the United Nations Treaty on the Prohibition of Nuclear Weapons.

This website was made possible thanks to the generous support of New Zealand and Swiss Loterie Romande.

I have begun adding particles such as rain and lightning, and I want to add a spot light to light up the city as the lightning strikes, but when I add a new light layer it does not have any affect on the scene. I have tampered fully with the options but no matter what I do with it it doesn't affect the project at all. I am used to a light turning everything black if the parameters are too narrow, but this is completely new to me and I don't know what's going on. I need this to work for a University deadline coming soon so any help is appreciated.

you definitely should invest as much time as you can in learning what you can. After effects is fun to play with, but intuition can only get you so far. when things get complex, your knowledge will help you avoid or at least understand the pitfalls. that and the forums

A single atomic bomb, the first weapon of its type ever used against a target, exploded over the city of Hiroshima at 0815 on the morning of 6 August 1945. Most of the industrial workers had already reported to work, but many workers were enroute and nearly all the school children and some industrial employees were at work in the open on the program of building removal to provide firebreaks and disperse valuables to the country. The attack came 45 minutes after the "all clear" had been sounded from a previous alert. Because of the lack of warning and the populace's indifference to small groups of planes, the explosion came as an almost complete surprise, and the people had not taken shelter. Many were caught in the open, and most of the rest in flimsily constructed homes or commercial establishments.

The bomb exploded slightly northwest of the center of the city. Because of this accuracy and the flat terrain and circular shape of the city, Hiroshima was uniformly and extensively devastated. Practically the entire densely or moderately built-up portion of the city was leveled by blast and swept by fire. A "fire-storm," a phenomenon which has occurred infrequently in other conflagrations, developed in Hiroshima: fires springing up almost simultaneously over the wide flat area around the center of the city drew in air from all directions. The inrush of air easily overcame the natural ground wind, which had a velocity of only about 5 miles per hour. The "fire-wind" attained a maximum velocity of 30 to 40 miles per hour 2 to 3 hours after the explosion. The "fire-wind" and the symmetry of thebuilt-up center of the city gave a roughly circular shape to the 4.4 square miles which were almost completely burned out.

The surprise, the collapse of many buildings, and the conflagration contributed to an unprecedented casualty rate. Seventy to eighty thousand people were killed, or missing and presumed dead, and an equal number were injured. The magnitude of casualties is set in relief by a comparison with the Tokyo fire raid of 9-10 March 1945, in which, though nearly 16 square miles were destroyed, the number killed was no larger, and fewer people were injured.

At Nagasaki, 3 days later, the city was scarcely more prepared, though vague references to the Hiroshima disaster had appeared in the newspaper of 8 August. From the Nagasaki Prefectural Report on the bombing, something of the shock of the explosion can be inferred:

The day was clear with not very much wind--an ordinary midsummer's day. The strain of continuous air attack on the city's population and the severity of the summer had vitiated enthusiastic air raid precautions. Previously, a general alert had been sounded at 0748, with a raid alert at 0750; this was canceled at 0830, and the alertness of the people was dissipated by a great feeling of relief.

The city remained on the warning alert, but when two B-29's were again sighted coming in the raid signal was not given immediately; the bomb was dropped at 1102 and the raid signal was given a few minutes later, at 1109. Thus only about 400 people were in the city's tunnel shelters, which were adequate for about 30 percent of the population.

When the atomic bomb exploded, an intense flash was observed first, as though a large amount of magnesium had been ignited, and the scene grew hazy with white smoke. At the same time at the center of the explosion, and a short while later in other areas, a tremendous roaring sound was heard and a crushing blast wave and intense heat were felt.

The people of Nagasaki, even those who lived on the outer edge of the blast, all felt as though they had sustained a direct hit, and the whole city suffered damage such as would have resulted from direct hits everywhere by ordinary bombs.

The zero area, where the damage was most severe, was almost completely wiped out and for a short while after the explosion no reports came out of that area. People who were in comparatively damaged areas reported their condition under the impression that they had received a direct hit. If such a great amount of damage could be wreaked by a near miss, then the power of the atomic bomb is unbelievably great.

In Nagasaki, no fire storm arose, and the uneven terrain of the city confined the maximum intensity of damage to the valley over which the bomb exploded. The area of nearly complete devastation was thus much smaller; only about 1.8 square miles. Casualties were lower also; between 35,000 and 40,000 were killed, and about the same number injured. People in the tunnel shelters escaped injury, unless exposed in the entrance shaft.

The difference in the totals of destruction to lives and property at the two cities suggests the importance of the special circumstances of layout and construction of the cities, which affect the results of the bombings and must be considered in evaluating the effectiveness of the atomic bombs. An account of the nature and history of each city will give meaning to the details of the damage and disorganization at each.

The city of Hiroshima is located on the broad fan-shaped delta of the Ota River, whose 7 mouths divide the city into 6 islands which project fingerlike into Hiroshima Bay of the Inland Sea. These mouths of the river furnished excellent firebreaks in a city that is otherwise flat and only slightly above sea level. A highly developed bridge system, with 81 important bridges, joined the islands. A singlekidney shaped hill in the eastern part of the city, about one-half mile long and rising to an elevation of 221 feet, offered some blast protection to structures on the eastern side opposite the point of fall of the bomb. Otherwise, the city was uniformly exposed to the spreading energy from the bomb.

The city boundary extends to some low hills to the west and northeast and embraces 26.36 square miles, only 13 of which were built up. Seven square miles were densely or moderately built up, the remainder being occupied by sparsely built-up residential, storage, and transportation areas, vegetable farms, water courses, and wooded hilly sections. In the central area, no systematic separation of commercial, industrial, and residential zones existed, though there were rough functional sections. The main commercial district was located in the center of the city, and with the adjoining Chugoku Regional Army Headquarters occupied the greater portion of the central area. The bulk of the industries was located on the perimeter of the city, either on the southern ends of the islands (where the Hiroshima airport was also situated) or to the east of the city. The 4 square miles of densely built-up area in the heart of the city--residential, commercial, and military--contained three-fifths of the total population. If there were, as seems probable, about 245,000 people in the city at the time of the attack, the density in the congested area must have been about 35,000 per square mile. Five completed evacuation programs and a sixth then in progress had reduced the population from its wartime peak of 380,000.

3a8082e126