IN Mr. Mallock's letter on “Definition, Resolving Power and Accuracy,” published in NATURE of May 27 (vol. 109, p. 678), reference is made to the measurement of star images on eclipse plates, from ...
Optical clocks of the National Institute of Information and Communications Technology (NICT, Japan) and LNE-SYRTE (Systemes de Reference Temps-Espace, Observatoire de Paris, Universite PSL, CNRS, ...
A thin strand of glass designed for light transmission. A single hair-thin optical fiber is capable of transmitting trillions of bits per second. In addition to their huge transmission capacity, ...
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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