The Effect of Gamma Rays
PARSIPPANY, N.J.
It weighs 2,000 pounds. It's alive. And the government wants to know if there's one lurking in a school near you. It's a Gammator 50, an instructional device containing radioactive cesium-137.
The federal Atomic Energy Commission donated the state-of-the-art instruments to school science programs back in the 1960s when nuclear energy seemed the wave of the future. And the classroom experiments the contraptions made possible once awed...
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