2006-07-07 10:17:56 · 14 answers · asked by wild_eep 6 in Science & Mathematics ➔ Astronomy & Space
Test for Echo. Used as a radio expression to confirm that people can here you on the broadcast frequency.
Also an excellent Rush song.
And yes, Ducks do have an echo, it just happens to mimic the same harmonics as the original reverberations, which makes it very difficult to perceive.
2006-07-07 10:26:47 · answer #1 · answered by Doob_age 3 · 2⤊ 1⤋
If you're wondering what an echo is then let me tell you.
An echo happens when you talk in a loud voice and the vibrations travel to a big, solid thing that can reflect them, they're reflected and the remaining vibrations that didn't hit the walls hit the reflected sound waves and that's when you hear the echo.
2006-07-07 10:22:57 · answer #2 · answered by suppy_sup 3 · 0⤊ 0⤋
Echo I was a large aluminized balloon, launched in March 1960. It was used to demonstrate that radio signals could be transmitted over much longer distances by bouncing them off an orbiting body.
This technology was abandoned in favor of active satellites. Echo was quite large (100 ft. diameter) and could easily be spotted from the ground.
2006-07-07 12:50:57 · answer #3 · answered by Joe M. 3 · 0⤊ 0⤋
Echo!!!
2006-07-07 10:22:30 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Echo...Echo..Echo....
2006-07-08 09:36:52 · answer #5 · answered by LR 3 · 0⤊ 0⤋
I cannot believe you got 13 answers to that
2006-07-09 00:49:58 · answer #6 · answered by shaun_ready 2 · 0⤊ 0⤋
Wow. Way to make your 120th question seem like your first...
2006-07-07 10:24:29 · answer #7 · answered by slagathor238 5 · 0⤊ 0⤋
Huh?
2006-07-07 10:21:37 · answer #8 · answered by ♥ jojo ♥ 4 · 0⤊ 0⤋
do you mean the bloke from Lost??
2006-07-07 10:21:08 · answer #9 · answered by DonnaDoop 4 · 0⤊ 0⤋
er no no no ooooooowowowowoo
2006-07-07 10:20:32 · answer #10 · answered by Lindodo 2 · 0⤊ 0⤋