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Awesome! I've been following bionerd23's youtube channel for a while and really enjoy the videos she's done. Glad to see more folks being introduced to her to

by tdicola 12y ago

Awesome! I've been following bionerd23's youtube channel for a while and really enjoy the videos she's done. Glad to see more folks being introduced to her too!

grecy 12y ago
Genuine question from someone that doesn't understand. Is she exposing herself to more radiation than is safe? Is there a very high likelihood she's going to make herself sick? I watched this one https://www.youtube.com/watch?v=6kg4vVYKc90 https://www.youtube.com/watch?v=6kg4vVYKc90 and she seems to be pretty callous with that hot particle.
- ehmmm 12y ago
  One her comments: well, if its over 100 mSv/h, then acute radiation sickness begins after ~2 hours (noticable reduced blood cell count from 200 mSv acute dose onward, though you'd only FEEL sick after another 3 or 4 hours). but yeah, as the inverse square law applies, there's nothing to fear with this particle. and yep, the spectrum was done by a HPGe, as usual. :)
  - grecy 12y ago
    ...and it was maxing out her meeter, which I think was showing 100 mSv/h, wasn't it?
    - deleted 12y ago
      [deleted]
    - joshvm 12y ago
      Yes, but radiation sickness is caused by prolonged exposure - that is, 100mSv/h for two hours (dimensions are important here, dosage is in Sv). Additionally that's for a full body dose and she was mostly irradiating her fingers.
      - grecy 12y ago
        ahhh, Thankyou. I thought it meant that if you're exposed to 100mSv/h, you'll get sick around 2 hours later... but what it means is a full body dose for 2 hours is enough to make you sick. Therefore 5 minutes to the fingers is probably OK.
  - rdtsc 12y ago
    I think the key was if that was the dose to the total body area not just from a single grain in her hand. Imagine being covered in those grains for 1 hour that would be the equivalent.
    - nakedrobot2 12y ago
      And what happens if you "only" irradiate your hand? Presumably some of the alpha/beta particles can go into your blood and then to the rest of your body? what damage is being done by holding that grain?
      - moopling 12y ago
        The gigacounter predicts the sieverts/h based on the local amount of radiation and by assuming that is the dosage all parts of your body are exposed to. If significantly less of your body is actually exposed to that level of radiation the actual dosage you receive will be less than predicted.
        nnq 12y ago
        You're right but it's not about the dose only. If I blast a millimeter-sized piece of your finger with neutrons the body dose might be extremely small, but that piece of finger tissue might itself become radioactive and the newly-made-radioactive atoms in it will keep irradiating the cells around. Then some of them will get cancer mutations. Then some of them will go long enough along the path to cancer. Then some of them will metastasize... The girl seems to have a good understanding of dose safety. But a poor understanding of biological effects, just like everyone else. Beta vs alpha vs gamma radiation have very different biological effects and sieverts, the measuring units that take some of these differences into account, are a gross over simplification. You can kill someone with a radiation dose well below the lethal one in Sv and you can survive a dose above the lethal one... Biological systems have very complicated relationships with radiation in general, that's why even the health impact of non-ionizing radiation needs to be investigated (yeah, your cellphone is most likely safe ;) ...but you know that you have at least some cells in you body that respond even to non-ionizing EM radiation - they are in your eyes and thanks to them you can read this :) )
  - caramel 12y ago
    Then of course, if some speck of radioactive material gets lodged in your body the inverse square law works against you.
- 69_years_and 12y ago
  Seems like everyone and their dog has a radiation detector in Russia esp. around Chernobyl, not something ones sees in the west.
  - VilleSalonen 12y ago
    Don't know about radiation detectors in Russia but Chernobyl is located in Ukraine, not Russia.
    - mkohlmyr 12y ago
      currently (just saying)
    - 69_years_and 12y ago
      My bad. Sadly or luckily it's close to being exactly on other side of the world from me and while I do use maps to help me place things, this time I didn't or if I have in the past, I've forgotten (it happens).
- tdicola 12y ago
  No, from all the videos I've seen in the last few years she takes safety seriously. In the really serious urban exploration videos of Chernobyl, Pripyat, etc. you can see everyone in suits and masks to keep out radioactive dust, and many different detectors for gamma, alpha, etc. radiation in use. The areas being explored have radiation levels that are hundred and thousands of times higher than normal background levels, but they're still safe enough to be around for a few hours without lasting harm. edit: Here's a good video that shows some of the gear and safety equipment for more serious explorations: https://www.youtube.com/watch?v=CdhdCbDch6A https://www.youtube.com/watch?v=CdhdCbDch6A
- gambiter 12y ago
  Watch the video with her eating the apple. She goes on to show the actual measurements, and explains the reason she could be so cavalier about it. She brings up a very interesting point, that the people who have a knee-jerk reaction to the apples wouldn't have the same reaction to her eating a bavarian mushroom, even though the mushroom has more cesium 137 in it. It certainly seems that she knows what she is doing, and isn't just jumping in for giggles when the meters start beeping. She even mentions the inverse square law in the video you linked.

by tdicola 12y ago

Awesome! I've been following bionerd23's youtube channel for a while and really enjoy the videos she's done. Glad to see more folks being introduced to her too!

grecy 12y ago

Genuine question from someone that doesn't understand. Is she exposing herself to more radiation than is safe? Is there a very high likelihood she's going to make herself sick? I watched this one https://www.youtube.com/watch?v=6kg4vVYKc90 https://www.youtube.com/watch?v=6kg4vVYKc90 and she seems to be pretty callous with that hot particle.

ehmmm 12y ago
One her comments: well, if its over 100 mSv/h, then acute radiation sickness begins after ~2 hours (noticable reduced blood cell count from 200 mSv acute dose onward, though you'd only FEEL sick after another 3 or 4 hours). but yeah, as the inverse square law applies, there's nothing to fear with this particle. and yep, the spectrum was done by a HPGe, as usual. :)
- grecy 12y ago
  ...and it was maxing out her meeter, which I think was showing 100 mSv/h, wasn't it?
  - deleted 12y ago
    [deleted]
  - joshvm 12y ago
    Yes, but radiation sickness is caused by prolonged exposure - that is, 100mSv/h for two hours (dimensions are important here, dosage is in Sv). Additionally that's for a full body dose and she was mostly irradiating her fingers.
    - grecy 12y ago
      ahhh, Thankyou. I thought it meant that if you're exposed to 100mSv/h, you'll get sick around 2 hours later... but what it means is a full body dose for 2 hours is enough to make you sick. Therefore 5 minutes to the fingers is probably OK.
- rdtsc 12y ago
  I think the key was if that was the dose to the total body area not just from a single grain in her hand. Imagine being covered in those grains for 1 hour that would be the equivalent.
  - nakedrobot2 12y ago
    And what happens if you "only" irradiate your hand? Presumably some of the alpha/beta particles can go into your blood and then to the rest of your body? what damage is being done by holding that grain?
    - moopling 12y ago
      The gigacounter predicts the sieverts/h based on the local amount of radiation and by assuming that is the dosage all parts of your body are exposed to. If significantly less of your body is actually exposed to that level of radiation the actual dosage you receive will be less than predicted.
      - nnq 12y ago
        You're right but it's not about the dose only. If I blast a millimeter-sized piece of your finger with neutrons the body dose might be extremely small, but that piece of finger tissue might itself become radioactive and the newly-made-radioactive atoms in it will keep irradiating the cells around. Then some of them will get cancer mutations. Then some of them will go long enough along the path to cancer. Then some of them will metastasize... The girl seems to have a good understanding of dose safety. But a poor understanding of biological effects, just like everyone else. Beta vs alpha vs gamma radiation have very different biological effects and sieverts, the measuring units that take some of these differences into account, are a gross over simplification. You can kill someone with a radiation dose well below the lethal one in Sv and you can survive a dose above the lethal one... Biological systems have very complicated relationships with radiation in general, that's why even the health impact of non-ionizing radiation needs to be investigated (yeah, your cellphone is most likely safe ;) ...but you know that you have at least some cells in you body that respond even to non-ionizing EM radiation - they are in your eyes and thanks to them you can read this :) )
- caramel 12y ago
  Then of course, if some speck of radioactive material gets lodged in your body the inverse square law works against you.
69_years_and 12y ago
Seems like everyone and their dog has a radiation detector in Russia esp. around Chernobyl, not something ones sees in the west.
- VilleSalonen 12y ago
  Don't know about radiation detectors in Russia but Chernobyl is located in Ukraine, not Russia.
  - mkohlmyr 12y ago
    currently (just saying)
  - 69_years_and 12y ago
    My bad. Sadly or luckily it's close to being exactly on other side of the world from me and while I do use maps to help me place things, this time I didn't or if I have in the past, I've forgotten (it happens).
tdicola 12y ago
No, from all the videos I've seen in the last few years she takes safety seriously. In the really serious urban exploration videos of Chernobyl, Pripyat, etc. you can see everyone in suits and masks to keep out radioactive dust, and many different detectors for gamma, alpha, etc. radiation in use. The areas being explored have radiation levels that are hundred and thousands of times higher than normal background levels, but they're still safe enough to be around for a few hours without lasting harm. edit: Here's a good video that shows some of the gear and safety equipment for more serious explorations: https://www.youtube.com/watch?v=CdhdCbDch6A https://www.youtube.com/watch?v=CdhdCbDch6A
gambiter 12y ago
Watch the video with her eating the apple. She goes on to show the actual measurements, and explains the reason she could be so cavalier about it. She brings up a very interesting point, that the people who have a knee-jerk reaction to the apples wouldn't have the same reaction to her eating a bavarian mushroom, even though the mushroom has more cesium 137 in it. It certainly seems that she knows what she is doing, and isn't just jumping in for giggles when the meters start beeping. She even mentions the inverse square law in the video you linked.