Showing posts with label Nuclear Radiation. Show all posts
Showing posts with label Nuclear Radiation. Show all posts

Tuesday, December 20, 2011

Inside Fukushima Dai-ichi Exclusion Zone

In June, National Geographic sent AP photographer David Guttenfelder into the exclusion zone around the Fukushima Dai-ichi nuclear power station, which was badly damaged in the earthquake and tsunami earlier this year. He captured images of communities that had become ghost towns, with pets and farm animals roaming the streets. 

Later, in November, Guttenfelder returned to photograph the crippled reactor facility itself as members of the media were allowed inside for the first time since the triple disaster last March. In some places, the reactor buildings appear to be little more than heaps of twisted metal and crumbling concrete. Tens of thousands of area residents remain displaced, with little indication of when, or if, they may ever return to their homes. 

Collected here are some images from these trips.

After the disasters of March 11, tens of thousands were ordered to leave their homes in the vicinity of the damaged Fukushima Dai-ichi nuclear power station, some of their footprints now frozen in the mud. (© David Guttenfelder /National Geographic) 

Two dogs scrap on Okuma's empty streets. In the early days of the crisis the no-go zone was alive with roaming farm animals and pets: cows, pigs, goats, dogs, cats, even ostriches. Often defying police patrols and barricades, volunteer rescuers rounded up and decontaminated some pets, returning them to their owners, and fed others. But by midsummer, a number of the pets had perished of starvation and disease. (© David Guttenfelder/National Geographic)  

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Saturday, December 17, 2011

Nuclear Bombs Testing

Since the time of Trinity, which is the first nuclear explosion in 1945, nearly 2,000 nuclear tests have been performed, with the majority taking place during the 1960s and 1970s. When the technology was new, tests were frequent and often spectacular, and led to the development of newer, more deadly weapons.

Judging from the amount of nuke test done, I just can imagine the amount of radiation human kind had been exposed.

Starting in the 1990s, there have been efforts to limit the future testing of nuclear weapons, including a U.S. moratorium and a U.N. comprehensive test ban treaty. As a result, testing has slowed, though not halted, and there are questions about the future. Who will take over for those experienced engineers who are now near retirement, and should we act as stewards with enormous stockpiles of nuclear weapons? 

Gathered here are images from the first 30 years of nuclear testing.

Exposed wiring of The Gadget, the nuclear device which exploded as part of Trinity, the first nuclear weapons test of an atomic bomb. At the time of this photo, the device was being prepared for its detonation, which took place on July 16, 1945. (U.S. Department of Defense)  

Upshot-Knothole Grable, a test carried out by the U.S. military in Nevada on May 25, 1953. A 280mm nuclear shell was fired 10km into the desert by the M65 Atomic Cannon, detonating in the air, about 500 feet above the ground, with a resulting 15 kiloton explosion. (U.S. Department of Defense) 

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