A storage system that contains multiple optical drives that read and write the media simultaneously. Libraries may hold one disc per drive or have storage for any number of discs or cartridges that ...
Optical clocks have evaluated the latest 'one second' tick of the International Atomic Time (TAI) and provided these data for adjusting the tick rate of TAI. Optical clocks of the National Institute ...
IN NATURE of May 27, p. 678, Mr. A. Mallock suggests as a quantitative measure of “definition” in an optical instrument “the angular or linear size of the field of view compared with the smallest ...
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