作者: Francis Birch
关键词: Geology 、 Travel time 、 Igneous rock 、 Right angle 、 Function (mathematics) 、 Seismology 、 Longitudinal wave 、 Modal 、 Metamorphic rock 、 Geophysics 、 Isotropic elasticity
摘要: … This velocity may be found with good precision from the resonant frequency of vibration in the torsional mode of cylindrical bars. Attempts to measure elastic constants entering in the fre…