The first echo sounder, called the fathometer, was first developed in 1914. It was created by R.A. Fessenden, initially created to detect icebergs.
The Black Echo was created on 1992-01-21.
An Echo-echo-echo-echo! The answer is Echo
Echo is a natural phenomenon, not invented.
H E Edgerton, improved greatly on the stroboscope and this was made widely available by General Electric. Strobes had been invented more than a hundred years earlier in Belgium. He then went on to improve sonar, by introducing the element of 'side-scan' sonar, with which many pictures of the ocean floor are made. These have much more resolution and display than 'ping' sonar.
what is a non homogenous echo pattern of uterus
no
echo sounding, localization
Your mother
Yes.
no
jason woodson
Echo sounding is used to get indication of any difference in the properties of the water. Fish finding, and depth sounding would be obvious uses. Other uses including locating enemy submarines or warships.
Echo sounding is used to get indication of any difference in the properties of the water. Fish finding, and depth sounding would be obvious uses. Other uses including locating enemy submarines or warships.
becoz they need to be heard
Harry Hess used sonar and another device still not found. Hey well he actually used an echo sounding device onboard the ship U.S.S Cape Johnson in which he commandered. Hess kept the echo sounding device on throughout his journey and he gained thousands of miles of echo sound maps of the ocean floor. Malkee xx
I think that Henry Hess invented echo-sounding devices for mapping the ocean floor. But I am not 100% sure that is the correct answer. LOL <3
Echo Echo was created on 2001-03-31.