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
Energy–momentum relation expressed in terms of wave quantities: and tidying up by dividing by throughout: This can also be derived from the magnitude of the four-wavevector in a similar way to the four-momentum above. Since the reduced Planck constant and the speed of light both appear and clutter this equation, this is where natural units are especially helpful. Normalizing them so that , we have: The velocity of a bradyon with the relativistic energy–momentum relation can never exceed . On the contrary, it is always greater than for a tachyon whose energy–momentum equation is By contrast, the hypothetical exotic matter has a