Mechanical television
Televisión mecánica
- Date
- 1925–1926 · confidence high
- Place
- London (Frith Street, Soho), England
- Credited to
- John Logie Baird (public demonstration, 26-1-1926); Paul Nipkow's disc (Berlin, 1884); Charles Francis Jenkins (Washington, 1925)
- People
- 👤 John Logie Baird1888–1946
- Field
- Communication
⚠️ Disputed: the sources disagree.
What it is
Transmission of moving images by a rotating scanning disc and a photoelectric cell. First demonstration of television with recognisable halftone images.
Jenkins transmitted silhouettes in 1925 and Baird halftone images in 1925-26; Dénes von Mihály and Kenjiro Takayanagi (1926, cathode-ray tube as receiver) also claim priority.
What it led to
- BBC's first experimental broadcasts (1929-1935)
- Demonstration of the viability of television as a medium
- Rapid replacement by electronic television (1936)
Built on
- Radio broadcasting1906–1920
- Early fax (wirephoto)1902–1924
- Nipkow disc
- Selenium cell
Made possible
- Electronic television1927–1936
- Phonovision videodisc