General InterestTimekeepingA Walk Through TimeA descriptive look at the history of timekeeping from ancient to modern methods, with a brief introduction to NIST Time and Frequency Services. From Sundials to Atomic Clocks: Understanding Time and Frequency (25.7 MB PDF)Originally published in 1977, this full-length book provides a comprehensive, easy-to-understand introduction to the field of time and frequency. Readers of nearly all ages and educational backgrounds should find it enjoyable. 306 pages. NIST Web ClockCompare your computer's clock with NIST's atomic clock set to Coordinated Universal Time (UTC). FAQ (frequently asked questions) and Glossary of Frequency and Timing. Exhibits from the Physical Measurement Laboratoryin the NIST Virtual Museum Marie Curie and the NBS Radium StandardsA history of the NBS radium standards and Marie Curie's involvement. The Fall of ParityExperiments in late 1956 demonstrating that our world is distinguishable from its mirror image. The Scanning Tunneling MicroscopeInvention of a precursor instrument, the topografiner, between 1965 and 1971. Length—Evolution from Measurement Standard to a Fundamental ConstantThe modern length standard has evolved over a period of 200 years which has brought it to a point where it can be continually improved without the necessity of changing its definition. Time Line for the Definition of the MeterMeter definition timeline, from 1791 to 1983. Online Museum of Quantum Voltage StandardsCelebrating the 100th Anniversary of the Discovery of Superconductivity History Photo GalleryNobel Prizes*NIST/JILA Fellow Jan Hall shares 2005 Nobel Prize in Physics.
NIST's Dr. Eric Cornell shared the 2001 Nobel Prize in Physics with two other researchers. NIST's Dr. William D. Phillips shared the 1997 Nobel Prize in Physics with two other researchers. * Links include numerous articles, official statements, congratulations, and photographs.
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