Find the latest episode of "This Is Uncomfortable" here. Listen
Learning Curve

1925: Film Projector.

Marketplace Contributor May 14, 2014

When Thomas Edison invented the projector he believed it would put school books out of business; visual learning would rule. Though film projectors did eventually become a classroom staple, there were a lot of obstacles to their success. The up-front cost of a single projector was around $150 in the mid-1930s, making it an expensive purchase for school districts.

There were also compatibility issues. Not all film reels were the same size. Some schools also initially purchased silent film projectors, which quickly become obsolete.

Marketplace is on a mission.

We believe Main Street matters as much as Wall Street, economic news is made relevant and real through human stories, and a touch of humor helps enliven topics you might typically find…well, dull.

Through the signature style that only Marketplace can deliver, we’re on a mission to raise the economic intelligence of the country—but we don’t do it alone. We count on listeners and readers like you to keep this public service free and accessible to all. Will you become a partner in our mission today?

Your donation is critical to the future of public service journalism. Support our work today – for as little as $5 – and help us keep making people smarter.