Why is "Drum scanner" trending?

Wikipedia Overview

Drum scanners are a type of image scanner that capture image information, with the scanning performed along one axis by mechanically rotating a cylindrical drum past a stationary optical pickup. The second axis is scanned by a much slower mechanical motion of either the drum or the pickup parallel to the cylinder axis using a lead screw mechanism. As the process involves a uniform (non-accelerating) rotation along one axis and a much slower linear, non-reciprocating motion along the other, mechanical challenges due to vibrations and backlash are largely eliminated, making it easy to achieve high speeds and precision using rather undemanding mechanisms. Higher-end drum scanners often employ photomultiplier tubes (PMT) as optical sensors, but there is nothing that precludes the use of other optical sensor types.