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19710
I live in Northern California, where forest-biomass power plants are common. One power plant takes the ashes that result and places them where cows forage. I’m wondering to what level of concentration this process will accumulate the cesium in organic dairy products. Jesse NoellEureka, Calif. The amount of radioactive cesium-137 taken up by trees is […]
By Science News -
Health & MedicineKeep on Going: Busy seniors live longer, more proof that it pays to stay active
Healthy elderly people who burn a lot of calories each day may be gaining extra years of life.
By Nathan Seppa -
19709
I was surprised to see in Science News, conclusions about causation made on the basis of correlational research.