5 Answers

....guessing:bombs in Japan were exploded in the air

Check out this most excellent essay style article here > http://www.huffingtonpost.com/patrick-takahashi/why-worry-about-fukushima_b_847250.html

“Today, the background radiation in Hiroshima and Nagasaki is the same as the average amount of natural radiation present anywhere on Earth. It is not enough to affect human health.”

Part of the answer is that these bombs exploded high up in the air and all the radioactive material blew or rained away... somewhere. I guess.... read more at the above link ...

  I saw a   DOCO Chernobyl recently, the forests are starting, along with ground level vegetation, the radioactivity has dropped almost to tolarble levels, so much being inhabitable for a 1000 years, As for the Japanese cities which were almost wiped off the map, no strategist value, to end the war they dropped them, it is called Collateral Damage   In 1945 they were still ignorant  what damage radioactivity does to the human body and it is better to anilise on the enermy, it is good the war was favourible to the allies as we could have committed crimes for mass murder.

soon after those cities were radio active, weeds and plants started growing there,and  deer started appearing.

So link what about this Omega watch It's called the Seamaster Memomatic a relic of late '60s early '70s watch design created in 1969. It's a watch with an alarm complication much like the Tudor Advisor or JLC link Memovox both from the same era. It has a very thick cushion-style case and Navorski wears link it on a steel bracelet. The key design trait is the three-ring dial which stands out when spotting the watch on screen.