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Science Forum

  1. Standard member wolfgang59
    Infidel
    08 May '13 02:34
    Thought this an interesting piece of trivia ...
    Since a typical banana contains about half a gram of potassium, it will
    have an activity of roughly 15 Bq Although the amount in a single banana
    is small in environmental and medical terms, the radioactivity from a
    truckload of bananas is capable of causing a false alarm when passed
    through a Radiation Portal Monitor used to detect possible smuggling of
    nuclear material at U.S. ports


    http://en.wikipedia.org/wiki/Banana_equivalent_dose
  2. 08 May '13 02:56
    Originally posted by wolfgang59
    Thought this an interesting piece of trivia ...
    Since a typical banana contains about half a gram of potassium, it will
    have an activity of roughly 15 Bq Although the amount in a single banana
    is small in environmental and medical terms, the radioactivity from a
    truckload of bananas is capable of causing a false alarm when passed
    through a Rad ...[text shortened]... g of
    nuclear material at U.S. ports


    http://en.wikipedia.org/wiki/Banana_equivalent_dose
    Do you think the Monsanto corporation should genetically modify bananas to have a high lead content in the peels for our protection? Is there any risk in a truck load of bananas reaching critical mass and blowing up causing a nation to think it was being attacked and launching nuclear missiles in retaliation causing the target to launch its missiles in retaliation to the point of causing a nuclear winter making Al Gore less rich?
  3. Standard member wolfgang59
    Infidel
    08 May '13 04:08
    Originally posted by joe beyser
    Do you think the Monsanto corporation should genetically modify bananas to have a high lead content in the peels for our protection? Is there any risk in a truck load of bananas reaching critical mass and blowing up causing a nation to think it was being attacked and launching nuclear missiles in retaliation causing the target to launch its missiles in retaliation to the point of causing a nuclear winter making Al Gore less rich?
    No and no. What is your opinion?
  4. 08 May '13 07:14
    Originally posted by joe beyser
    Do you think the Monsanto corporation should genetically modify bananas to have a high lead content in the peels for our protection?
    Not only would that not protect the consumer, but it would cause lead poisoning too.
  5. 08 May '13 11:29
    Originally posted by wolfgang59
    No and no. What is your opinion?
    Well if it was Ukranium 235 instead of potassium Al Gore would probably loose some money on it some day. I like the lead peels Idea but how about some other non poisonous metal?
  6. 08 May '13 12:05 / 2 edits
    Originally posted by joe beyser
    Well if it was Ukranium 235 instead of potassium Al Gore would probably loose some money on it some day. I like the lead peels Idea but how about some other non poisonous metal?
    On the upside, the lead peels would allow grocers to charge a lot more per banana assuming a constant price per kg.
    But then again, they might be worth more to the heavy metals industry.

    How about gold peels? I would go for that.
  7. Standard member sonhouse
    Fast and Curious
    08 May '13 12:26
    Originally posted by wolfgang59
    Thought this an interesting piece of trivia ...
    Since a typical banana contains about half a gram of potassium, it will
    have an activity of roughly 15 Bq Although the amount in a single banana
    is small in environmental and medical terms, the radioactivity from a
    truckload of bananas is capable of causing a false alarm when passed
    through a Rad ...[text shortened]... g of
    nuclear material at U.S. ports


    http://en.wikipedia.org/wiki/Banana_equivalent_dose
    I suspect they can fine tune the detection instruments to tell the difference, the radiation from bananas may have a different frequency spectrum, or energy spectrum, something like that.
  8. Subscriber Ponderable
    chemist
    08 May '13 15:37
    Originally posted by sonhouse
    I suspect they can fine tune the detection instruments to tell the difference, the radiation from bananas may have a different frequency spectrum, or energy spectrum, something like that.
    The standard dosimeter is measuring the sum only. You need quite expensive devices to do a good analysis.

    You might be astonished how much radioactive decay is going on in your body (about 50 Bq/kg). K40 accounting for most of it.
  9. Standard member wolfgang59
    Infidel
    08 May '13 21:50
    Originally posted by Ponderable
    You might be astonished how much radioactive decay is going on in your body (about 50 Bq/kg). K40 accounting for most of it.
    I'm astonished at the decay of my body. Period.
  10. 09 May '13 00:46
    Originally posted by wolfgang59
    I'm astonished at the decay of my body. Period.
    Maybe you should get some potassium supplements.