TY - BOOK ID - 145212753 TI - Measuring time : frequency measurements and related developments in physics AU - Kajita, Masatoshi AU - Institute of Physics (Great Britain) PY - 2018 SN - 0750321237 0750321245 9780750321235 9780750321242 PB - Bristol [England] (Temple Circus, Temple Way, Bristol BS1 6HG, UK) : IOP Publishing, DB - UniCat KW - Time measurements. KW - Physics KW - Scientific standards. KW - TECHNOLOGY & ENGINEERING / Measurement. KW - History. UR - https://www.unicat.be/uniCat?func=search&query=sysid:145212753 AB - In this fascinating book Masatoshi Kajita recounts the importance of precise measurements and their inherent uncertainty, before telling the story of humankind's efforts to define and measure time with increasing accuracy, culminating in the development of atomic clocks. These improvements in the accurate measurement of time and frequency have played a pivotal role in the development of modern science; including the confirmation of Einstein's Theory of Relativity, and the recent detection of gravity waves. Furthermore, such measurements afforded by atomic clocks and other mechanisms are being used to examine key questions about the very fundamentals of our universe, the possibility of symmetry violation and even testing the idea that there may be variation of the fundamental constants themselves over time. ER -