What does this number measure?
The 2013 film A Boy and His Atom uses molecules moved across a surface. Guinness gives a frame of 45 × 25 nm. This reference represents the width of the experimental frame, not a cinema screen or a transistor. The drawn pattern is an original evocation.
Compare the stated dimensions
The comparison uses the number in each fact sheet: altitude, height, diameter, length or distance, depending on the reference. Two values in metres do not necessarily describe the same property.
Source and limitations
The reference of 45 × 25 nm concerns the observed microscopic field, not the size of the character or of a fabricated object. Only the width of this field is compared; the drawing and colours are interpreted.
An original interpreted scientific illustration, not a photograph. Width of the film's microscopic field. The width of 45 nm belongs to the observed field, not to the character or a physical plate. A microscopy rendering with interpreted colours, not an original image from the film.
Documented construction or demonstration: 2013.