When were the first submarine communication cables placed?
1850s
Where do they lay?
on the sea bed
What kind of communications did they initially carry?
telegraphy
What technology do they currently use?
optical fiber
Can they provide internet service?
yes
When was the telegraph first introduced?
1839
By whom?
William Cooke and Charles Wheatstone
Did Samuel Morse believe in a oceanic submarine line?
yes
Crossing which ocean?
the Atlantic
What year did he express his support in the project?
1840
What year did he perform a test of his own?
1842
Which body of water did he use?
New York Harbor,
Who else performed a similar test?
Wheatstone
Where?
Swansea Bay.
How wide are modern cables?
1 inch
Do they reach all of the continents?
no
Which one is excluded?
Antarctica
Which continent was the most recent to be connected?
Australia.
What year did it join?
1872
Where did it connect?
Darwin