Measuring time : frequency measurements and related developments in physics /

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 t...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Kajita, Masatoshi (Autor)
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Bristol [England] (Temple Circus, Temple Way, Bristol BS1 6HG, UK) : IOP Publishing, [2018]
Colección:IOP (Series). Release 5.
IOP expanding physics.
Temas:
Time measurements.
Physics > History.
Scientific standards.
TECHNOLOGY & ENGINEERING / Measurement.
Acceso en línea:Texto completo
Tabla de Contenidos:
  • 1. Standards of physical quantities
  • 1.1. Introduction
  • 1.2. The time and frequency standard
  • 1.3. The length standard
  • 1.4. The mass standard
  • 1.5. From macro to micro
  • 2. Historical role of precision measurements of time and frequency for the development of physics
  • 2.1. Introduction
  • 2.2. Change from Ptolemaic theory to Copernican theory
  • 2.3. Measurement of the speed of light
  • 2.4. Theory of relativity
  • 3. The fundamentals of an atomic clock
  • 3.1. Introduction
  • 3.2. Attainable accuracy of atomic clocks
  • 3.3. Accuracy and stability
  • 3.4. Atomic clock operating in the microwave region
  • 3.5. Optical atomic clocks
  • 3.6. Precision measurement of molecular transition frequencies
  • 3.7. Other possible clocks
  • 3.8. Comparison between atomic clocks
  • 4. The role of precision measurements in future developments in physics
  • 4.1. Introduction
  • 4.2. Confirmation of theory of relativity
  • 4.3. Search for symmetry violations in particles and anti-particles
  • 4.4. Search for the variation in the fundamental constants
  • 4.5. Search for symmetry violation in chiral molecules
  • 4.6. Role of atomic clocks for astronomy
  • 4.7. Quantum electrodynamics and proton size
  • 5. Role of atomic clocks for human life
  • 5.1. Position measurement by GPS
  • 5.2. Very long baseline interferometry
  • 5.3. Establishment of a national standard time and its distribution to users
  • 5.4. Contribution to communication technology
  • 5.5. Monitoring air composition
  • 5.6. Temperature measurement
  • 6. Conclusion
  • Appendix A. Laser cooling.

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