John Logie Baird showed live moving television images, the head of a ventriloquist's dummy and the face of an office boy, to members of the Royal Institution in his attic workshop at 22 Frith Street, Soho, on 26 January 1926. It is the first demonstration of true television, moving images with tonal gradation, before witnesses. Baird's system was mechanical, scanning the image with a spinning Nipkow disk. The American inventor Philo Farnsworth demonstrated a rival, fully electronic system a year later, transmitting a single straight line from his image dissector camera tube on 7 September 1927, the technical lineage every modern television descends from rather than Baird's mechanical approach.
Facts
Milestone Year Location22 Frith Street, Soho, London 1 FAQs
Was Bairds 1926 demonstration the first television, or was electronic television invented separately?
Bairds demonstration used mechanical scanning. Electronic television, built around Philo Farnsworths image dissector, was a separate technology that Baird himself later licensed.
John Logie Bairds 26 January 1926 demonstration used a mechanical scanning system, a spinning disc, to relay a real moving image before witnesses, the first demonstration of true television of that kind. It was not the technology television eventually adopted. The American inventor Philo Farnsworth built a separate all-electronic system around his own image dissector camera tube. The National Science and Media Museum records that the Baird Company itself later took a sharing agreement with Farnsworth for the image dissector, finding the tube inferior to the rival Emitron system developed by Marconi EMI. Bairds mechanical system and Farnsworths electronic system are two different technical lineages toward the same goal, not one continuous line of invention, and the electronic lineage is the one broadcasting eventually adopted.
Connections
Held Differently
Philo Farnsworth, Figures Baird demonstrated a mechanical scanning system, a spinning disc, in 1926. Farnsworth developed a separate all-electronic system built around his own image dissector camera tube. The two are different technical lineages toward the same goal, not sequential steps in one invention; the Baird Company itself later licensed Farnsworths image dissector and found it inferior to the rival Emitron tube.
Source National Science and Media Museum Official Site
Credited To
Source National Science and Media Museum Official Site
In Medium
Open Questions
Source Who Really Invented the Mechanical Television? (BBC Science Focus)
Sources
1. National Science and Media Museum Official Site
National Science and Media Museum, Science Museum GroupNational Science and Media Museum, Who invented television? object-and-story page, section John Logie Baird and the first television
John Logie Baird demonstrated television for the first time in 1926.
- Credited To: John Logie Baird
Associated With: Philo Farnsworth, National Science and Media Museum, Who invented television? object-and-story page, section Baird goes electric
The Baird Company had a sharing agreement with the American inventor of electric television, Philo T Farnsworth, that allowed them to use his image dissector; the tube was inferior to the Emitron and required huge amounts of light.
View the Source Wikipedia
Wikimedia FoundationWikipedia: John Logie Baird, lead section
John Logie Baird was a Scottish inventor, electrical engineer and innovator who demonstrated the world's first mechanical television system on 26 January 1926.
Wikipedia: Philo Farnsworth, Career section
On September 7, 1927, Farnsworth's image dissector camera tube transmitted its first image, a simple straight line, to a receiver in another room of his laboratory at 202 Green Street in San Francisco.
View the Source Open Questions (1 open question)
Should Baird's 1926 mechanical demonstration or Farnsworth's 1927 all-electronic demonstration be credited as the true invention of television?
Baird's January 1926 demonstration showed the first live moving television images before witnesses, but used a mechanical scanning system; Philo Farnsworth demonstrated the first all-electronic television the following year, and some historians credit Farnsworth's electronic approach, which underlies all later television technology, as the more consequential achievement despite Baird's earlier priority.
What would resolve this Not resolvable by new evidence alone: it turns on whether priority in time or eventual technological lineage is the criterion for "true" invention, a definitional question historians continue to answer differently.
Who Really Invented the Mechanical Television? (BBC Science Focus)
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