When was the CN Tower built?



The CN Tower in Toronto, Canada is a communications and observation tower. This building was completed in 1976, and at that time was the world’s tallest free-standing structure.



The 20th century saw an explosion in communications technology. The first radio broadcast was made almost at the beginning of the century, when Reginald A. Fessenden transmitted music and words in 1906.



By the 1920s, radio provided a major form of entertainment for many people around the world. Then, in 1926, a Scottish engineer named John Baird developed the first successful television set.










Fact File



Communication satellites are used to carry communications such as radio, television and telephone messages around the world. These satellites are ‘parked’ in an orbit where they will remain in position over the same part of the Earth’s surface.




 



Picture Credit : Google


Trackbacks

Trackback specific URI for this entry

Comments

Display comments as Linear | Threaded

No comments

Add Comment

Enclosing asterisks marks text as bold (*word*), underscore are made via _word_.
Standard emoticons like :-) and ;-) are converted to images.
E-Mail addresses will not be displayed and will only be used for E-Mail notifications.
To leave a comment you must approve it via e-mail, which will be sent to your address after submission.