In a research ‘motivated largely by basic curiosity’, a workforce of scientists in South Korea and Switzerland got down to see if they may design shapes to roll alongside any desired path on a flat floor. This entertaining video from Nature chronicles the workforce’s analysis, documenting how, utilizing a mixture of easy and complex methods – in addition to a little bit of tweaking as soon as the 3D-printed objects received rolling – they have been capable of create shapes to journey alongside practically any attainable path. The result’s an enchanting glimpse into what occurs when the situations of computation enter the true world, in addition to how a little bit of curiosity can have probably important penalties – on this case, within the realm of quantum and classical optics.