Originally posted by London_Pride:I know sound mirrors, they have them on the south / east coast here in the UK, they were used to detect incoming bombers before the advent of radar.
What do you think accounts for Arrowheads noise then? The extra 12k people / the bowl shape? I think comparing the stadia and the lack of obvious acoustic amplification the KC record is impressive.
for KC it's the continuous bowl built partially below ground and 10K more seats