Horns as a social weapon, against poisonous mining activities

Desibel's idea is REALLY great, like the 10 meters long horn they conceived and used for their protest...

Not an April's Fool: have a look at the above INTERESTING link and... WOW: try it with a bookshelf speaker;-))) - mosquito farts vs. the Voice of an Angry God!

Some electronically-manipulated trombone notes, shouting - at 130 Db at 10 meters... - to those capitalists (ears), wasting a fjord... a voice to a shame listenable at several km afar.

Clever... and, POSSIBLY, the VERY first "stereo protest", ever!