About 35% of the energy is the initial burst of thermal radiation.
blast, thermal and radiation :) i remember from highschool
All objects give off thermal radiation.
When an atomic bomb explodes it forms a mushroom cloud, the explosion gives off EMP or Electro Magnetic Pulse, the explosion is huge and can destroy so much for miles, and the explosion gives off huge amounts of radiation so if you survive the explosion you can suffer or die from the radiation after the bomb blew up.
Radiation taints the ground, everyone in the blast radius of the initial explosion would be decimated. Look at Hiroshima, Japan, or Nagasaki, Japan (not sure on spelling), they were bombed by an atomic bomb, and still have radiation poisoned in the ground.
Most were killed from the explosion, some survived but may have short term or long term radiation illness which can be terminal.
The Chernobyl disaster released around 400 times more radiation than the atomic bomb dropped on Hiroshima. The explosion exposed millions of people to radiation and had widespread environmental consequences compared to the more localized impact of the atomic bomb.
a nuclear explosion
None if directly exposed to thermal flash or blast. Almost any if only exposed to the radiation. The LD50 for ionizing radiation is much higher in insects than it is in mammals.
biology An atomic bomb is a result of a fission reaction which is pure physics. However, the results of an atomic bomb explosion releases a tremendous amount of energy including a great amount of radiation which can cause radiation burns and affect genetic material possibly causing mutations. In that sense we can say that atomic bomb technology affects biology and therefore can be called biotechnology.
The circumference of an atomic bomb explosion can vary depending on the size and yield of the bomb. In general, the blast radius of a typical atomic bomb explosion can extend several miles from the epicenter.
You would see a flash from an atmospheric atomic explosion from orbit, maybe even from the Moon without a telescope.
It is comparable to it.