How overhead projectors took over your classroom
But then came a bit of technology, previously mostly used for military purposes, called the overhead projector.
The Verge reports: But then came a bit of technology, previously mostly used for military purposes, called the overhead projector.
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!
This technology story centres on the United States.
Why it matters
Changes in the tech sector often reach consumers quickly through the devices, apps and online services they use every day.
Key details
- Location
- United States · Americas
- Reported by
- The Verge
- First reported
- Section
- Technology
Sources
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