The Visionary Period 1880-1929

The Visionary Period 1880-1929By: Kerri Clemons, Jekwan Cobb, and Maribel BravoEugene Goldstein1876 CATHODE RAYGoldstein proved that the materials of the cathode ray made no difference in how the ray was made

Sheldon Bidwell1881TELEPHOTOGRAPHY

Paul NipKow1881ELECTRONIC TELESCOPE

Paths that were developed for television systemsMECHANICAL- based on the rotating disks that NipKow createdELTRONIC-Based on cathode ray tube workDevelopment of radios 1919-1926Amateur radio stations adopted vacuum tube technology They also began to explore shortwave frequenciesAmateur radio stations also were banned from making entertainment broadcastsVacuum tube amplification for television was introduced

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