Heterotic string theory ... where the higher-dimensional theory is reduced to a four‐dimensional effective model. ... Foundational work dating back to 2016 on super no-scale models has ...

A scale model of a 1940 Ford pick-up truck at the ACT Scale Modellers' Society's annual show, ScaleACT. (ABC News: Penny Travers)From boats and planes to military dioramas and robots, scale models ...