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The history of television

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by

Maria Antunes

on 18 April 2015

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Transcript of The history of television

The history of television


The first televisions were made of wood and were very similar to radios.
This unit had to stay a little on-time before being used to warm
RCA brand was one of the first to launch color television in the USA in the 50s.
who created ?
Philo Taylor Farnsworth (August 19, 1906 – March 11, 1971) was the television pioneer.
In the summer of 1921 Farnsworth worked out the principle of the image dissector and demonstrated the first working version on September 7, 1927
first tv
CRTs tv's
flat-screen tv

sources
http://pt.slideshare.net/efa1/a-evoluo-da-televiso

http://evolucaodatelevisao.blogspot.pt/

http://www.smartkids.com.br/especiais/evolucao-da-televisao.html
by:
Rita Reis nº. 5
Maria Antunes nº. 20
Television's evolution
Jakob Berzelius discovered the chemical element selenium and its ability to transform light energy into eletrical energy.
In 1842, Alexander Brain could transmit an image printed through telegraph
First televisions sold to the public
How the television will be in the next 20 years?
Full transcript