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 object in the lab frame with magnitude . The relativistic energy and momentum include the Lorentz factor defined by: Some authors use relativistic mass defined by: although rest mass has a more fundamental significance, and will be used primarily over relativistic mass in this article. Squaring the 3-momentum gives: then solving for and substituting into the Lorentz factor obtains its alternative form in terms of 3-momentum and mass, rather than 3-velocity: Inserting this form of the Lorentz factor into the energy equation: followed by more rearrangement yields (). The elimination of the Lorentz factor also eliminates implicit velocity dependence of