Creatorverse the tablet’s touch screen to create designs that could then be animated and set into motion using various physics-based properties and attributes (such as friction, speed and force). All creations can then be shared among other creators, who also have the capability to remix, expand or even dismantle other community creations. Inspiration for Creatorverse, including the logo, originated from the popular device Newton's cradle, which demonstrates conservation of momentum and energy via a series of swinging spheres. Creatorverse Creatorverse was a physics-based sandbox creation game for the Apple iOS, Android, Kindle Fire, and Kindle Fire HD that was released in
Relativistic angular momentum of the object's center of mass. Since "T" is the energy density of the object, the spatial coordinates of the center of mass are given by Setting "Y" = X obtains the orbital angular momentum density about the centre-of-mass of the object. The conservation of energy–momentum is given in differential form by the continuity equation where ∂ is the four gradient. (In non-Cartesian coordinates and general relativity this would be replaced by the covariant derivative). The total angular momentum conservation is given by another continuity equation The integral equations use Gauss' theorem in spacetime The torque acting on a point-like