The Science of Time

The future of timekeeping is changing with the development of optical frequency standards and the resulting challenges of distributing time at ever higher precision, with the possibility of timescales based on pulsars, and with the inclusion of higher-order relativistic effects. The definition of the second will likely be changed before the end of this decade, and its realization will increase in accuracy; the definition of the day is no longer obvious.

We propose a symposium setting the stage for future timekeeping standards, infrastructure, and engineering best practices for astronomers and the broader society.

Hosted by the Harvard-Smithsonian Center for Astrophysics (CFA) in Cambridge, MA (USA). The CFA is a collaboration of the Smithsonian Astrophysical Observatory (SAO) and the Harvard College Observatory (HCO).

Où acheter du stromectol générique Where to buy generic stromectol Dónde comprar stromectol genérico Wo kann man generisches Stromectol kaufen? Dove acquistare stromectol generico Πού να αγοράσετε γενόσημο stromectol Onde comprar estromectol genérico ストロメクトールジェネリックはどこで買える? Kde koupit generický stromectol Hvor kan man købe generisk stromectol Waar kunt u generieke stromectol kopen? Hol vásárolhat általános stromectolt Di mana untuk membeli stromectol generik حيث لشراء ستروميكتول عام Hvor kan man kjøpe generisk stromectol Gdzie kupić generyczny stromectol Kde kúpiť generický stromectol Var kan man köpa generisk stromectol Mistä ostaa geneeristä stromectolia De unde să cumpărați stromectol generic