back echo

back echo

[′bak ‚ek·ō]
(electromagnetism)
An echo signal produced on a radar screen by one of the minor back lobes of a search radar beam.
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At what other festival could you hear a whistling Leonid meteor shower - 'the bounced back echo of shooting stars' - the percussive beat of dead, spinning stars (first thought to be an alien signal when it was first heard in 1967) or the rhythmic twang emanating from inside a black hole?
BRAVA BACK ECHO BRAVA, one of two horses at the centre of the controversial non-trier inquiry which eventually resulted in Jim Best receiving a six-month suspension, will have his first start for Best's wife Suzi today.
Devised by former University of Mississippi scientist Robert Derrow in close collaboration with ARS scientists, BASIS emits a pulse of acoustic energy and then gauges the strength and travel time of the back echo to determine sediment's location and concentration.
Typically a front echo and back echo will be seen as the sound wave bounces off the front and back surface of the casting.
LOOKING BACK Echo reporter Fred Brenton takes a look at who was sleeping in his bed 100 years ago.
it should respond to the received radar pulses by sending back echoes of the radar set as a morse signal.
Our source added: "The warning is sensible, but it does bring back echoes of the 70s IRA campaign when troops were told not to wear uniforms in public."
"The warning is sensible, but it does bring back echoes of the IRA campaign in the 70s when troops were told not to wear uniforms in public."
He also stated on oath that he was never party to negotiations with the PM or the central government and was not even informed about the progress of the meetings or the matters discussed therein." Bringing back echoes of Advani's controversial contention that he was not aware of the NDA decision to swap terrorists for the hostages on the hijacked airline in Kandahar, despite being home minister, the man portrayed by Liberhan in the report essentially says he is a hanger- on who did not take on a lead role.
It generates high-frequency sound waves that pass through your body, sending back echoes as they bounce off organs, vessel walls and tissues.
It brought back echoes of the last time the Open was held at Carnoustie, when France's Van de Velde threw away a three-shot lead at the 18th hole to lose the title, and Romero was aware that parallels could be drawn between the two golfers.