Jamaica Observer

The EJS Equinox Precession model illustrates the Copernican theory of Earth's orbit around the sun. The top window shows a view from outside the celestial sphere. The simulation shows the moving Earth along with its axis or rotation and the line of sight from Earth, through Sun, to the Celestial...


Platforms: Mac

The Local Coordinates model displays the position of a star in local (Altitude/Azimuth) coordinates. The horizon is shown along with the four cardinal directions (N, E, S, and W). The latitude of the observer is set at 35.5 degrees which sets the location of the north celestial pole (teal)...


Platforms: Mac

RO stands for Repository Observer. It is a complex tool developed for system administrators. It's purpose is to watch over systems and tied repositories. RO gathering information about packages installed on observing systems and available updates for packages in repositories related to that...


Platforms: *nix

The Ejs Celestial Globe model simulates the Two Sphere Universe theory of the Ancient Greeks. This theory supposes the stars to be fixed on the surface of a Celestial Sphere, with the spherical Earth at the center of this sphere. The simulation shows the motion of Sun and stars in this model, as...


Platforms: Mac

The Astronomical Parallax 2D Model illustrates the phenomenon of parallax in astronomy. Parallax is the apparent displacement of an object relative to the background that is caused by the motion of the observer (rather than the motion of the object itself, or of the background). This simulation...


Platforms: Mac

The GR Seeing program The GR Seeing program simulates the path of light around a black hole using the Schwarzschild metric. It also shows a plot of the proper time and angle the light is observed by a shell observer in order to demonstrate what a shell observer would see when looking at light...


Platforms: Mac

Watch modification of any type of field in Django's model and call registered callback function This observer can watch Any value type of field (CharField, IntegerField ...) Any Model type of field (ForeignKey, OneToOneField, GenericForeignKey) Any RelatedManager type of field (field...


Platforms: *nix