Chi - only of breaking your arm. The energy being released is from fracture, i.e. bonds breaking, in all but the granular case. Indeed, even granular pack brea

Chi - only of breaking your arm. The energy being released is from fracture, i.e. bonds breaking, in all but the granular case. Indeed, even granular pack breakup could well involve sympathetic local charging, especially for packs gradually compressed and stressed like soils.