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Thread: effects of radioactivity

  1. #1 effects of radioactivity 
    Forum Freshman BitterSweet's Avatar
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    Please help me with this topic. Other than simple radiation effects, what harm does it cause to living organisms? If possible, what are the consequences of those effects? Thanks for your help.


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  3. #2  
    Forum Cosmic Wizard i_feel_tiredsleepy's Avatar
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    It damages DNA, repairing DNA causes mutations, mutations can cause cancer.


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  4. #3  
    Forum Cosmic Wizard spuriousmonkey's Avatar
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    What are simple radiation effects?
    "Kill them all and let God sort them out."

    - Arnaud Amalric

    http://spuriousforums.com/index.php
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  5. #4  
    Moderator Moderator TheBiologista's Avatar
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    Quote Originally Posted by spuriousmonkey
    What are simple radiation effects?
    Mass tissue necrosis, probably.
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  6. #5  
    Forum Radioactive Isotope skeptic's Avatar
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    As the tired and sleepy one said, radiation damages DNA. The extent of damage varies from minimal and easily repaired to fatal.

    Our bodies are constantly subjected to radiation, since radioactive materials are a part of everything. Even your own body is about one part per million Uranium. These elements slowly decay, releasing the radioactivity, and this is constantly causing damage to our DNA. Fortunately, we have special enzymes designed to repair the damage.

    Normal 'background' radiation is not usually harmful. Even if this radiation increases to 10 times normal, our repair mechanisms can cope. There are some researchers who believe that such an increase in radiation is actually good for us, since it stimulates the repair mechanisms, in the same way a vaccine stimulates our immune system, a process called hormesis.
    http://en.wikipedia.org/wiki/Hormesis

    If levels of radiation exceed our ability to cope, but not too excessively, it may result in long term DNA damage that leads to cancer.

    With very high levels of radiation, the damage is too high to survive, and all cells in the body start to die. Death can be slow - over a few days - or fast depending on how much radiation.

    Some organisms have much better DNA repair mechanisms than we do, and can tolerate much higher radiation doses without harm.
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  7. #6  
    Forum Freshman BitterSweet's Avatar
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    thank you very much
    Who's John Galt? - Atlas Shrugged
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  8. #7  
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    If you're hit with enough ionizing radiation at once, it causes some sort of freaky effect on your nervous system that causes you to immediately lose consciousness. You might or might not regain consciousness before you die, depending on the amount of exposure.
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  9. #8  
    Forum Junior Zitterbewegung's Avatar
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    @Scifor Refugee

    But you need really high doses of Radiation to immediately see effects like the one you mentioned. And I mean HIGH like in 5 Gy or above as used in those freaky devices to preserve food via Cobalt60 radiation.
    I love deadlines. I like the whooshing sound they make as they fly by
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