Index Geophysics

hrv Nove revolucionarne mogućnosti u geodeziji koje pružaju otkrića za koja su dobivene Nobelove nagrade za fiziku 2005. i 1997. godine

eng New Revolutionary Possibilities in Geodesy Providing the Discoveries Awarded for Physics in 2005 and 1997

hrv Nobelovu nagradu za fiziku 2005. godine dobili su Roy J. Glauber, John L. Hall i Theodor W. Hänsch za unapređenja u području optike. Nobelovu nagradu za fiziku 1997. godine dobili su Steven Chu, Claude Cohen-Tannoudji i William D. Phillips za otkriće i razvoj metode hlađenja i hvatanja u zamku atoma laserskom svjetlošću. Unapređenja koja su predložili Theodor W. Hänsch i John L. Hall uz podršku i otkrića Stevena Chua, Claudea Cohen-Tannoudjija i Williama Phillipsa pružaju nove revolucionarne mogućnosti znatnog unapređenja točnosti mjerenja u geodeziji i u velikom broju drugih područja znanosti i primjena. Tako će se s pomoću optičkih satova moći izmjeriti vrijeme čak preciznije nego atomskim satovima, te će se na taj način moći preciznije odrediti orbite navigacijskih satelita, a to znači i položaji određivanih točaka na površini Zemlje. Osim toga, otvara se mogućnost određivanja razlike gravitacijskih potencijala između točaka na površini Zemlje uz primjenu Einsteinove opće teorije relativnosti. Na taj će se način moći izravnim mjerenjima povezati visine između kontinenata, a i poboljšati povezivanja nivelmanskih mreža između pojedinih država unutar kontinenata. Osim toga bit će omogućeno i preciznije mjerenje duljina.

eng 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.

Solarić, Nikola

Solarić, Miljenko

Švehla, Dražen

hrv femtolaser; frekvencijski češalj; frekvencijski lineal; optički sat; mjerenje razlika gravitacijskog potencijala

eng femtolaser; frequency comb; frequency lineal; optical clock; measurement of difference in gravitation potential

Croatian geodetic society

2012

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Geodetski list

ISSN 0016-710X (Print)

ISSN 1849-0611 (Online)

Volume 66 (89)

Issue 1

hrv

info:eu-repo/semantics/openAccess

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