Gunshot breaks record for longest echo in the world

Echo broke previous record, set in 1970, by 15 seconds

Trevor Cox, an acoustics expert from England, has smashed the world record for the longest echo.

The teacher of acoustic engineering at the University of Salford in Manchester recorded the sound of a gunshot echo that lasts a full 75 seconds.

The echo was recorded in an oil tank in the Scottish Highlands. It shattered the previous record, set in 1970, by 15 seconds.

Click on the audio clips above to hear the echo and an interview with Cox on CBC Radio’s As It Happens.

http://www.cbc.ca/news/world/gunshot-breaks-record-for-longest-echo-in-the-world-1.2499908

would oil have anything to do with the science I know others will do better on?

No. The longest echo is a duck’s quack because no one has heard it yet & ducks have been quacking for a million years.

Tamb said:

No. The longest echo is a duck’s quack because no one has heard it yet & ducks have been quacking for a million years.

where was the shortest mentioned?

While on the topic of duck’s quack echo. Yes it had been heard. The difficulty in hearing it is because the quack itself sounds very similar to an echo of a quack.

Probably if various atmospheric effects, like still conditions and ducting, that these could be exploited. Do inversion layers and the like effect sound in a similar way they do radio waves?

Perhaps not, I do know when it’s still here some evenings you can near hear a mouse fart 100metres away.

mollwollfumble said:

While on the topic of duck’s quack echo. Yes it had been heard. The difficulty in hearing it is because the quack itself sounds very similar to an echo of a quack.

They thought they heard it, but on closer examination it turned out to an early 80s new wave band playing in the distance.

ba-dum ching