Geodetski list, Vol. 66 (89) No. 1, 2012.
Pregledni rad
New Revolutionary Possibilities in Geodesy Providing the Discoveries Awarded for Physics in 2005 and 1997
Nikola Solarić
; Geodetski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Miljenko Solarić
; Geodetski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Dražen Švehla
; European Space Agency, Darmstadt, Germany
Sažetak
Nobel Prize for Physics in the year 2005 was awarded to Roy J. Glauber, John L. Hall and Theodor W. Hänsch in recognition of their contribution in the field of optics. Nobel Prize for physics in 1997 was awarded to Steven Chu, Claude Cohen-Tannoudji and William D. Phillips for the discovery and development of the method by means of which the atoms are cooled down and trapped by laser light. The improvements that were suggested by Theodor W. Hänsch and John L. Hall supported by the discoveries made by Steven Chu, Claude Cohen-Tannoudji and William Phillips offer new revolutionary possibilities for significant improvement of measuring accuracy in geodesy and also in many other fields of science and application. By means of optical clocks it will be possible to measure time even more precisely than by atomic clocks, providing thus more precise determination of navigational satellite orbits, and consequently the positions of points on the Earth’s surface. It also opens the possibility of determining the difference of gravitational potential between the points on the Earth’s surface applying thereby the theory of relativity by Einstein. In this way it will be possible to connect the heights between the continents by means of direct measurements, and also to improve the connection of levelling networks between individual countries on the continents. More precise distance measurements will also bi provided.
Ključne riječi
femtolaser; frequency comb; frequency lineal; optical clock; measurement of difference in gravitation potential
Hrčak ID:
87072
URI
Datum izdavanja:
14.3.2012.
Posjeta: 2.205 *