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 their rest masses in (): The energies can be eliminated by: similarly the momenta can be eliminated by: where is the angle between the momentum vectors and . Rearranging: Since the invariant mass of the system and the rest masses of each particle are frame-independent, the right hand side is also an invariant (even though the energies and momenta are all measured in a particular frame). Using the de Broglie relations for energy and momentum for matter waves, where is the angular frequency and is the wavevector with magnitude , equal to the wave number, the energy–momentum relation can be