Editing Transparency (projection) (section)

== Uses ==
Uses for transparencies are as varied as the organizations that use them.

Certain classes, such as those associated with [[mathematics]] or [[history]] and [[geography]] use transparencies to illustrate a point or problem. Until the advent of [[LaTeX]], math classes in particular used rolls of acetate to illustrate sufficiently long problems and to display mathematical symbols missing from common computer keyboards.

Aerospace companies, like [[Boeing]] and [[Beechcraft]], used transparencies for years in management meetings in order to brief engineers and relevant personnel about new aircraft designs and changes to existing designs, as well as bring up illustrated problems.<ref>{{cite book|last=Serling|first=Robert J.|title=Legend and Legacy: The Story of Boeing and Its People|year=1992|publisher=St. Martin's Press|isbn=0-312-05890-X|pages=[https://archive.org/details/legendlegacystor00serl/page/449 449]|url-access=registration|url=https://archive.org/details/legendlegacystor00serl/page/449}}</ref>

Some churches and other religious organizations used them to show sermon outlines and illustrate certain topics such as [[Old Testament]] battles and [[Jewish]] artifacts during worship services, as well as outline business meetings.