New world record set for longest duration echo in a man-made structure
Friday, January 17, 2014 - 11:20
in Earth & Climate
(Phys.org) —The record for the longest duration echo in a man-made structure has been decimated by a single shot from a blank loaded pistol—an amazing 112 seconds. It happened inside an oil storage tank buried in the hard rock of a hillside in the Scottish Highlands. The previous record was a paltry 15 second reverberation in Hamilton Mausoleum in Lanarkshire.