An energy absorption device having a plurality of bonded sheets. Each sheet has at least one aperture with a transverse dimension and a longitudinal dimension. The longitudinal dimension is no more than approximately four times the transverse dimension. The at least one aperture of a first sheet partially overlaps the at least one aperture of at least one other sheet. An energy emitting device having a plurality of bonded sheets. Each sheet has at least one aperture with a transverse dimension and a longitudinal dimension. The longitudinal dimension is no more than approximately four times the transverse dimension. The at least one aperture of the first sheet partially overlaps the at least one aperture of at least one other sheet.
