It used to be so easy to get away with things in school. The teacher, after all, was always turned around writing at the chalkboard! But then came a bit of technology, previously mostly used for military purposes, called the overhead projector. It would change far more than just the disciplinary record of students everywhere.
In this episode of Version History, we tell the story of the overhead projector. David Pierce is joined by The Verge’s Jake Kastrenakes and Stanford professor Antero…
