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When was the first echo sounding device created?
The first echo sounder, called the fathometer, was first developed in 1914. It was created by R.A. Fessenden, initially created to detect icebergs.
When was Out of the Black created?
Out of the Black was created in 2002.
What is a sound wave that reflects off a hard surface?
An Echo-echo-echo-echo! The answer is Echo
When was The Black Hollies created?
The Black Hollies was created in 2005.
When was Black Mischief created?
Black Mischief was created in 1932.
When was The Black Waters of Echo's Pond created?
The Black Waters of Echo's Pond was created on 2009-10-11.
When was Echo Echo created?
Echo Echo was created on 2001-03-31.
When was We Be the Echo created?
We Be the Echo was created in 2003.
When was Be My Echo created?
Be My Echo was created in 2002.
When was Echo Newspapers created?
Echo Newspapers was created in 1985.
When was Echo of Me created?
Echo of Me was created in 2005-09.
What is the ISBN of The Black Echo?
The ISBN of The Black Echo is 0-316-15361-3.
When was The Echo Maker created?
The Echo Maker was created in 2006.
When was Echo Passage created?
Echo Passage was created in 1999.
When was An Echo of Hooves created?
An Echo of Hooves was created in 2003.
When was The Sofia Echo created?
The Sofia Echo was created in 1997.
When was The Echo Murders created?
The Echo Murders was created in 1945.
