Due to the Scratch Team planning to remove access to unshared projects (see here), I had the idea to archive as many old projects as possible with the purpose of preserving Scratch's community history ...

Abstract: We present an alternative method for viewing time-varying volumetric data. We consider such data as a four-dimensional data field, rather than considering space and time as separate entities ...

Spring Arm Component is a solution for cameras to expand/retract based on gameplay situations. Typically when you add a Camera to a character for the purposes of creating a third person perspective.