# The biblical battle of Jericho / When the trumpets destroy the walls

The biblical episode of the battle of Jericho has always fascinated me. The story from the book of Joshua (6:1-27) introduces the first battle the Israelites had to win in order to conquest the land promised by God after the Egyptian slavery period and the forty years spent in the desert. God gave Joshua instructions in order to take the city of Jericho: the Israelites had to march around the city’s walls once every day during six days. Then on the seventh day, they had to do the same but in addition to blow in their horns which would make the walls collapse and the city easily defeated.

It always pleases me to imagine a poetico-scientific explanation to this episode by thinking that the horns actually reached the resonance frequency of the walls; this same phenomena that explains why military manuals prevent troops to march on bridges not to risk to make them collapse. I find very compelling the potentiality of destroying whole buildings with only human means (or in that case, music instruments). This could in fact be considered as a metaphor of revolutions which make institutions collapsing…