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At Harvard, Ramsey undertook a series of classic studies on nuclear and magnetic interactions within molecules, which helped to lay the foundations of the theory of 'chemical shifts' for nuclear magnetic resonance and magnetic resonance imaging, as well as revealing many properties of nuclei, such as their magnetism.

The Nobel Prize for physics was awarded to Norman Ramsey who invented the \"separated oscillatory fields method\" for measuring the differences between atomic energy levels. Hans Dehmelt and Wolfgang Paul also received the award.

Matson and Jabr provide an excerpt from Accurate Measurement of Time, an article by Wayne M. Itano and Norman F. Ramsey that won the Nobel Prize in 1989. New technologies, relying on the trapping and cooling of atoms and ions, offer every reason to believe that clocks can be 1,000 times more precise than existing ones. One of the most promising depends on the resonance frequency of trapped, electrically charged ions. Trapped ions can be suspended in a vacuum so that they are almost perfectly isolated from disturbing influences. Hence, they don't suffer collisions with other particles or with the walls of the chamber.

In view of the recent increase in estimated cost of the superconducting supercollider project and the large investment in scientific personnel, as well as time and dollars in building it, the Department of Energy convened last January a panel of scientists - including five Nobel laureates and physicists from fields other than high energy - to assess the very issues you raise in ''The Behemoth and the Boson'' (editorial, March 21). We were members of that panel and disagree with statements in your editorial.

The discovery of catalytic RNA may solve this chicken-and-egg problem. ''It is very likely that the RNA molecules were the first biomolecules to contain both the genetic information and play a role as biocatalysts,'' said the Swedish academy. 'Are You Sure?' Dr. [Norman F. Ramsey], 74 years old, won the prize for work he did in the late 1940's and early 1950's. When an Associated Press reporter called him yesterday morning to tell him he had won the prize, he asked, ''Are you sure?'' and then said he was ''delighted.'' Martin Deutsch, a colleague at M.I.T., said Dr. Ramsey had made a large number of ''significant and insightful'' contributions to physics. ''He's a man of great intellectual integrity,'' he continued. ''You can trust him, intellectually and personally.'' #9,192,631,770 a Second Dr. Ramsey's work centered on perfecting a way to study the structure of atoms by firing them through two oscillating electromagnetic fields. He discovered that such a process produced an interference pattern that gave important clues to atomic structures and behavior.

Reports on interview with Canadian officials about inspection of CIRUS reactor at Rajasthan Atomic Power Plant in India.