Word: nuclei
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Dates: during 1980-1989
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...Ramsey's so-called separated oscillatory fields technique did not just become a valuable scientific tool; it also provided the basis for modern-day atomic clocks. Like the ticking of a pendulum in a grandfather clock, the rapid-fire (9,192,631.770 times a second) oscillations of cesium-atom nuclei, spinning like tops inside a magnetic field, can be used to pace off time...
...physicists offered several theories about where the Utah experiments had gone wrong. Pons and Fleischmann claimed that they had caused the nuclei of deuterium atoms, a heavy form of hydrogen, to fuse together to form helium, thus releasing radiation and heat energy. But, the physicists suggested, the radiation detected might have come from radon that was already present in the laboratory's air. The helium reported could also have seeped into the apparatus from...
...Utah fusion experiment, researchers B. Stanley Pons and Martin Fleischmann ran a current through a palladium electrode immersed in heavy water. They announced on March 23 that the deuterium nuclei in the water fused together into helium, releasing energy...
Fusion, the nuclear reaction that powers the sun, occurs when the nuclei of two small atoms join together to form a larger atom, releasing energy and neutrons. Scientists had believed fusion possible only under great temperatures and pressures until the Utah researchers announced they had produced it at room temperature...
...test, Silvera puts palladium in a deuterium solution, which he then squeezes together with a high-pressure apparatus. He said his goal is to make the deuterium nuclei fuse together at a temperature of 120 degrees Kelvin, which corresponds to 245 degrees below zero Fahrenheit...