nuclear clock
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nuclear clock — ▪ physics frequency standard (not useful for ordinary timekeeping) based on the extremely sharp frequency of the gamma (gamma ray) emission (electromagnetic radiation arising from radioactive decay) and absorption in certain atomic nuclei,… … Universalium
clock — clock1 /klok/, n. 1. an instrument for measuring and recording time, esp. by mechanical means, usually with hands or changing numbers to indicate the hour and minute: not designed to be worn or carried about. 2. See time clock. 3. a meter or… … Universalium
Nuclear warfare — Nuclear War redirects here. For other uses, see Nuclear War (disambiguation). Warfare Military history Eras Prehistoric Ancie … Wikipedia
Nuclear triad — Nuclear weapons History Warfare Arms race Design Testing Effects Delivery Espionage … Wikipedia
Nuclear receptor related 1 protein — Nuclear receptor subfamily 4, group A, member 2 PDB rendering based on 1cit … Wikipedia
Nuclear Weapons: The Road to Zero — is a 1998 book edited by Joseph Rotblat. Rotblat draws heavily on the Pugwash Conferences on Science and World Affairs, and in particular on a comprehensive international study published in 1993 on the need and mechanisms to eliminate nuclear… … Wikipedia
Nuclear factor I — (NF I) is a family of closely related transcription factors. They constitutively bind as dimers to specific sequences of DNA with high affinity.[1] Family members contain an unusual DNA binding domain that binds to the recognition sequence 5… … Wikipedia
Nuclear weapon design — The first nuclear weapons, though large, cumbersome and inefficient, provided the basic design building blocks of all future weapons. Here the Gadget device is prepared for the first nuclear test: Trinity. Nuclear weapon designs are physical,… … Wikipedia
Atomic clock — Nuclear clock redirects here. For the clock as a measure for risk of catastrophic destruction, see Doomsday Clock. For a clock updated by radio signals (commonly but inaccurately called an atomic clock ), see Radio clock. For the album by Zion I … Wikipedia
CLOCK — For other uses, see Clock (disambiguation). Clock homolog (mouse) Identifiers Symbols CLOCK; KAT13D; KIAA0334; bHLHe8 External IDs … Wikipedia
