Nuclear bombs & their lingering radioactive effects

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Discussion Overview

The discussion revolves around the potential effects of a nuclear attack, specifically focusing on the types of radiation produced, the extent of fallout, and the duration of radioactive effects. Participants explore various factors influencing these outcomes, including weapon type, explosion location, and environmental conditions.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about the specific types of radiation and the duration and distance of its effects following a nuclear attack.
  • Another participant suggests that fallout effects can last a long time and may travel globally, with concentration decreasing over time due to the isotopes' lifetimes and diffusion into the air.
  • A different participant emphasizes that the effects depend on various factors, including the weapon used, explosion point, local weather, and topography.
  • Some participants note that different types of radiation (alpha, beta, gamma) are released during a nuclear explosion, with a claim that the radiation levels decrease quickly over time.
  • One participant contrasts the potential destruction of large bombs, like the Tsar, with smaller bombs, such as North Korea's 2006 test bomb, indicating varying areas of impact.
  • Concerns are raised about the long-lasting nature of fallout, with references to historical events like Hiroshima, Nagasaki, and Chernobyl, suggesting that the radioactivity from nuclear explosions remains detectable today.
  • Another participant argues that the radioactivity from nuclear explosions is negligible compared to natural radioactivity in the present day, while noting that Chernobyl was not a nuclear weapon event.

Areas of Agreement / Disagreement

Participants express differing views on the extent and duration of radioactive effects from nuclear attacks, with no consensus reached on the specifics of fallout and its comparison to historical events.

Contextual Notes

Participants mention various factors that could influence the outcomes, such as weapon type and environmental conditions, but do not resolve the implications of these factors on the overall discussion.

bluegrass
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Hello, I wish to ask, if a kind of nuclear attack would happen, what radiation would it be, how far and for how long? How can we know how the radioation amount would change with time? Many thanks!
 
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Depends... are you asking for the fallout effects? those can in general span for a long time and of course they can travel around the globe several times (dying out exponentially with time due to transitions/radiation depending on the isotopes' lifetime, and also being diffused into the air bringing down their concentration).
 
Depends on the weapon used, the point of explosion, the local weather, topography, and so on.

In general: all of alpha, beta and gamma, and it would go down quickly. Hiroshima and Nagasaki got re-built quickly after the second world war, for example.
 
like the other posters said it would depend on the bomb used a large bomb like the Tsar would wipe out a very large area but a small bomb like North Korea's 2006 test bomb wouldn't be anywhere near as destructive and would only affect a very small area. The radiation released from the bomb is called fallout and it won't go away at any point in our life time even Hiroshima and Nagaski set off geiger counters as does Chernobyl. When a nuclear explosion occurs gamma alpha and beta radiation is released.
 
QuickREACTION said:
even Hiroshima and Nagaski set off geiger counters as does Chernobyl.
Compared to natural radioactivity, the radioactivity from the nuclear explosions is negligible today. Chernobyl is a different case, that was not a nuclear weapon.
 

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